Our Rheem heat-pump is on the fritz. It sounded like a generator sound that would last for 45 seconds before shutting off. Hi. Your York unit should last more than 8 years, but if it has been running low on charge or had restriction issues then I would probably recommend a new unit. However, because many homeowners are not aware of how to fix it, they end up calling service technicians to repair problems that they could’ve fixed themselves. -Outdoor ambient is above 125 # F. Allow unit to cool and condensing pressure to reduce before restarting. The compressor thermistor is a 10k thermistor. Our AC was not working for 3 days so our neighbor which is an electrician tried to fix it. I know in previous posts you say that bad high pressure and low pressure switches are rare. Check line voltage for variation or “saq.". still nothing ... High School or GED. We would love to help you out and earn your business! If the unit is over 10 years old I would watch the unit closely to make sure that it is not running high pressure a let it run. Does valve operate correctly now? I would suggest hooking up some gauges to see what the problem actually is. Thanks in advance, Hi Eric! We have processed over 25,000 Successful PayPal Orders! My best guess would be that the compressor is over-heating and going off on thermal overload. Find the most common problems that can cause a Rheem Furnace not to work - and the parts & instructions to fix them. The wires that are coming from the thermostat to the contact, were chewed to all get out. match single stage Heat Pump to variable speed blower? You make want to turn the power off to your unit for 30 seconds or so and see if the flashing code resets and goes away. I hope you can easily find and fix the problem. If your tech has not already made sure the refrigerant charge is right if you have a 410A unit make sure the subcooling is right. Its working right now but my question is this a good idea? Below we list a dozen causes of high head pressure in an air conditioner or heat pump compressor motor. -Calculate the gauge pressure from the voltage readings: PSIG = (375 *, -On a legacy controlled system verify that the voltage readings convert to the. Steve. He said that the unit is not turning because of a faulty High power switch, he said the wire goes through the HPS and does not provide signal to the motor to turn on. After the 3 or 4 time it finally throws a High Pressure Lockout again. Verify fan is not in delay mode. Too hot to touch means that you probably need a new motor. A restriction in your refrigeration cycle like a bad TXV (thermostatic expansion valve) or a stopped up orifice can also cause high-pressure problems. Hi Leticia! The question would be what is causing the compressor to stop working in the middle of a cycle. While I’m there, I’m thinking to replace the coil’s temperature sensor which looks pretty easy. In case of Rheem heat pump not working you should address these checklists. This sounds like you have a restriction in your system. I would suggest that you or someone check to see if the compressor is overheating and going off on thermal over-load or if the heat sensor that some compressors have on the top of some of the scroll compressors is opening up because of the compressor overheating. When there is a call for heat, the thermostat will send 24V to the outdoor unit on the 'Y' wire , and send 24V to energize the reversing valve on the 'O' wire . If you are looking for an HVAC products supplier that will treat you the way you should be treated, turn to us. With the thermostat calling for cooling you should have 24 to 28 volts between the Y and C terminals to energize the outdoor contactor. 5. Also see high head pressure remedy. If not you have a transformer or broken wire problem. Horizontal right installation with coil on the blower (upstream). Reverse Valve? Extreme high outdoor temperatures above 100 degrees. Steve, we narrowed it down to the culprit! We sell many different contactors on the following page: https://arnoldservice.com/product-category/air-conditioner-parts/ac-contactors-heat-pump-contactors/ Yes, this could very well be a low pressure (low refrigerant) switch that is cutting the unit off for protection. The other 4 remaining prongs are at the oposite end of the 220 side. -If none of the above corrects the issue, replace drive. Yes, your contractor is right by telling you that the high-pressure switch is expensive to replace because most replacements require opening up the system, reclaiming the charge brazing in a new high-pressure switch, installing a filter drier, evacuating the system with a vacuum pump and recharging the system. You or the service tech would need to check to see if the compressor windings are open? When the system was installed the technician set the lockout temperature to 40 degrees. Rheem was founded in 1925, and today they are one of North America’s largest HVAC manufacturers. Extreme high outdoor temperatures above 100 degrees. on all night. And do those switches shut off for about 3/ 4 hours as a safety precaution (and can explain our lost 3/4 hours each day?) Hopefully, since you cleaned your unit the pressure switch fault will not occur again. rheem heat pump board indicates locked out due to low pressure ... Model UPNE-036JAZ SER 7348 M1506 05913 Code is flashing low pressure lockout. A blockage in the refrigeration cycle. When you’re ready to install your Rheem heat pump, or if you just have a question on which one to choose, look no further than a trustworthy, independent Rheem Pro that’s likely just down the street. It some times runs several days without any symptoms. Slow or dragging fan motor. If I get a new condenser what if their is a leak in the liquid lines? Hi, I recently purchased a new house with a carrier ac unit. Both times, the button needed to be pushed in order to get the units to operate in A/C mode. -Check model data card is properly connected. I do not like to take sides in these kinds of situations. The RP14 is our 14 SEER heat pump and is part of the Rheem heat pump product line that extends from 14 to 20 SEER. If high static is creating high blower speed. Make sure blower wheel is tight on shaft. Thank you! • Check TXV bulb clamp. The indoor filter is clean and coils on condensing unit are clean. The current heat pump is a 10 years old 13 SEER 3ton Rheem, UHSA-HM3617JA single speed air handler + UPNE-036JAZ sinle stage heat pump + 10k watt AUX heat strip. Slow or dragging fan motor. Any advice would be greatly appreciated. Essentially, he could not think of anything else that would cause the fan to not blow/outside unit to work. The information given below can be helpful for you then. There have been many recalls on the TXV valves lately. Efficient designs. Air Conditioning and Heat Pump Troubleshooting Simplified, Air Conditioning & Heat Pump troubleshooting questions with answers index, Furnace troubleshooting questions with answers index, Gas & Electric Furnace Troubleshooting Simplified, https://www.youtube.com/watch?reload=9&v=Amo2eRlYrzg, https://www.youtube.com/watch?reload=9&v=L7VkLsXGaQ8, https://arnoldservice.com/problem-my-air-conditioners-contactor-will-not-engage-i-am-not-getting-24-volts-to-the-contactor-to-make-it-engage-what-could-be-the-problem/, https://arnoldservice.com/product-category/air-conditioner-parts/ac-contactors-heat-pump-contactors/, American Standard Trane Condenser Fan Motors, ICP Heil Tempstar Whirlpool Flame Sensors, Trane American Standard Furnace Draft Inducers, Trane American Standard Pressure Switches, Managed by Wooassist - Woocommerce Support. Add filter drier. If the unit is fairly new under 10 years old I would probably have the high-pressure switch replaced. Steve, an a/c guy disconnected the high pressure switch on our outdoors 2002 Ruud unit because it kept tripping and he said the switch was not needed. View Detail . Thanks for asking the questions. If the high pressure safety switch is tripped it will not allow the fan to start because the safety switch will not allow 24 volts to go to the contactor to get the compressor and fan motor started. I would need to know the capacitor specs (uf/mfd and voltage rating) to recommend a replacement. • Wait at least 3 hours for overload to reset. I know that several manufacturers have been having problems with TXV valves getting stopped up, but I do not know for sure. Bought new wire and air return filter for $15, ran it, connected it all up, and WALLAH! I turn my multi-meter to ac, A~, and V and the leads on the white and common/black wire and it spits out 248+-. Is there power going to the compressor windings when it stops or is something shorting out that is cutting off the power to the compress? The low pressure sensor on it is stuck open so the heat pump won’t start. • Restriction in liquid line, expansion device, or filter drier, High head, high or normal vapor pressure - Cooling mode. - Verify input voltage is within 187VAC and 252VAC. Along with manufacturing many high-efficiency and standard air conditioners, they also make home heating systems, refrigeration products, and more. 6. I would also recommend turning off the power to your unit and check all wiring to make sure everything is good and tight. I hope you find an easy inexpensive solution to the problem. Make sure they are tight and there is no burning in those wires. I happened to reset the HP switch and the unit will run again for couple of days and turn off. We have UPS Ground, Next Day Air Saver, 2nd Day Air, 3 Day Select and UPS Sure Post shipping options in our shopping cart. Any advice? on heat, it flashes both LED’s for about a few minutes and then it starts up again and then shuts off again, during this time it sounds like hissing from the unit and the motor/fan sounds like it’s have a bearing go bad. Stays at low cfm despite system call for cool or heat cfm. Your outdoor unit has to be clean to run properly under high outdoor temperatures. Low vapor, cool compressor, iced indoor coil. I had a problem with the unit blowing the 3 amp fuse when switching to heat. If you have any other questions please feel free to email us at support@arnoldservice.com or comment in the comments section below. We have been swamped with orders today and I did not get a chance to answer. Check selections on the thermostat. Any guidance would greatly be appreciated. The following are the only reasons that I can think of that would cause a high-pressure alarm to sound: 1. Soon thereafter, we would still hear the noise. If issue persists, replace the thermistor. Air should come out of the top of your unit. Check to see if “R” is missing/not connected at motor. Sometimes I have seen switches trip for no reason at all. 2. I can manually turn the unit on if the bridge/switch is held down, but it shuts off as soon as i let up. Greetings, I have rheem heat pump unit that heats and cools with air handler inside the house. Rheem air conditioners are dependable units. Hi David! I would recommend bypassing the sensor and keep a watch to make sure the heat pump does not run low on refrigerant charge. None of this happens when I reset the unit by turning off the breaker and putting it on Cool, everything works fine, no hissing noise what’s so ever. The compressor is Coperland scroll ZR34K3-PFV-130 A new Evap coil (RCSA … Twice in the last week I have encountered rheem heat pumps. - Verify there is not a short in the filter or choke. Steve. The system is over-charged with refrigerant. Steve, Hi Steve I looed at a heat pump today and found it shutting down on the high pressure switch. He could not detect the leak using sniffer or see any obvious oil leakage but surmised based on experience of know problems. The condenser fan would still run. Steve. I hope you can find out if you really have a pressure switch problem or not soon. Should we leave the Ac as it is whithout a functional hps? Replace motor or capacitor. I do not like Goodman very well. Is there a way to test for those in the system? Check law voltage connections (G,Y W, R ; C) at motor, unseated pins in motor harness connectors. I’m glad to have the unit cooling the main room again, but wanted to check – is this a risky fix for, say, a sleeping family in a small apartment?? Thanks so much for asking the question. The 'Y' wire powers the contactor coil and should pull in the contactor. If you have a restriction this would be found by attaching manifold gauges and watching the pressures in your system. This highly featured and reliable heat pump is designed for years of reliable, efficient operation when matched with Rheem indoor Whether you need furnace ignitors, AprilAire filters, EZ Flex filters, or another kind of HVAC merchandise, we want to serve you. Pulled them, reran new, hooked it all back up and wallah! - Verify shielding on communication cable is adequately connected to the connector. Dirty copper piping or nitrogen not used when brazing, Adding flux before seating copper partway, Heating unit on (possible circulator fault), Low Pressure Lockout (short test Dins to reset), High Pressure Lockout (short test Dins to reset). I would then shut off the unit and wait for delay, restart unit and it would be fine, until the same situation occurs. – Home Heat Problems Hi Carlos! - Outdoor ambient is below 0*F. Allow unit to heat up and evaporating pressure increase before restarting. The outside condenser would make a loud chattering sound and the compressor would shut off. I just found it weird that it will trip so quick on high pressure. I have never heard of an air conditioner’s liquid lines start vibrating so much that makes a loud noise. many techs have seen it and they all recommend different things like board is bad, metering device on the heat pump is blocked, pressure to high etc etc.. Replace motor or capacitor. yesterday we had a bad storm go through and the electricity went out several times. Is the pressure actually high or is there a problem with high-pressure safety switch or defrost control board. -Check the power inverter heat sync for debris. Steve, Hi Steve, We have a Lennox residential AC split system, about 6 years old. On heat pumps the indoor coil becomes the condenser in the wintertime and if you are not getting enough airflow across the indoor coil it with cause the high-pressure code problem. I would highly recommend taking the compressor terminal cover off and inspect the 3 wires that go into the compressor. Now, it’s their building, their unit; they vacuum coils and replace filters annually, and we have a working circuit breaker in the apartment (and renters’ insurance). It keeps triggering the high-pressure cut-off on the outdoor unit. So sorry that you are out of AC! We would love to have your business! A heat pump that doesn’t turn on is a fairly common and easily remedied problem. I have not done any service work since 2005 so I do not know if the high-pressure switch is replaceable without reclaiming the charge or not. 4. He filled it to the factory specifications and the buzzing noise from the attic unit stopped. see the range Happy New Year! I could not believe that happened and I had to replace that valve to fix the compressor. The unit is 3 years old and is a nordyne unit. We have a post about this problem on the following page: https://arnoldservice.com/problem-my-air-conditioners-contactor-will-not-engage-i-am-not-getting-24-volts-to-the-contactor-to-make-it-engage-what-could-be-the-problem/ You would need to keep checking for 24 volts between the Y and C wires. Steve. etc. This sure sounds like you have a restriction in the system. Basically mucked them up real good and then put about 7 band-aids on them within about a 18″ span. If the whole unit with both the compressor and fan shuts off then I would suggest taking a look at the contactor when the unit shuts off. Hi Shannon! Goodman does have a good at least a 5-year warranty on parts. That’s what makes our innovative, super-efficient heat pumps a great choice for families seeking a versatile heating and cooling solution. That is your decision. Hi Abhishek! Reduce charge. • Air, noncondensibles, or moisture in system. Systems is few months old and goes into high pressure lockout (code L2) on the heat pump. I will let you decide who is at fault. It is normal for motor to oscillate with no load on shaft. Would need gauges to check this. Steve, Your email address will not be published. Steve. In middle Alabama. The outside unit is completely clean except for one side that’s got a bit of dust build up as in it’s not super dark brown but just 10 to 18 % of dust covering up on that one side. My outside heatpump at time will drop out the compressor, even though the compressor contactor is pulled in and a volt measuring indicates 240 on compressor side of contactor The compressor was recently replaced as were the caps. I hope that when you say, “trip” that you are referring to the high pressure switch and not the circuit breaker. Where’s The Reset On My Rheem AC Unit? - Verify communication cable connection between the inverter and ICC is complete. If you are in cooling mode with the new outdoor unit is going off on the high-pressure safety switch then I would think that your unit is over-charged or you have a restriction in the refrigeration cycle. I hope you can easily find and fix the problem. 3. Install bulb with two mounting straps, in 2:00 or 4:00 position on suction line, with insulation, Low superheat adjustment (only applicable to TEV with adjustable superheat setting), Incorrectly installed, or restricted external equalizer line, Remove restriction, or relocate external equalizer. If you do not have an Amprobe then you could turn the power off to the unit after your unit has run for an hour or so and see if the condenser fan motor is getting hot. Check low voltage (24-vac R to C) at motor. This sounds like you have a stoppage in the refrigeration system somewhere. Steve. The amperage should not be over the FLA (full load amp) or RLA (running load amps) for the motor. Copyright © 2021 Heat Pump troubleshooting, American Standard Heat Pump Troubleshooting, • Power off or loose electrical connection. Solid-state protection control or internal thermal sensors, Compressor timed off/on control or interlock, No voltage on line side of compressor contactor, Poor evacuation on installation or during service. Check air distribution on coil. I tested continuity on the HPS and it is open. -If ambient above 110*F or below 0 # F compression ratio could be too high for low speed operation. Since the fan motor went out after the storm this is a sign that more than likely the fan motor was going bad, moving slow and was causing the high-pressure switch to go off. I would like to suggest that you or you have someone try to install gauges and see what the pressures are doing when the noise occurs. I hope that it will go away. If you ever experience a problem with any of your orders, contact us right away and we will make it right. In supply air stream, out of calibration, Poor system control using capillary tubes, Adjust air flow to 400 CFM [188.8 L/s]/Ton, Recover charge, install filter-drier, evacuate system, recharge, Remove restriction in liquid line Correct the refrigerant charge, Misapplication of internally equalized valve, Remove external equalizer line restriction, Loss of charge from power head sensing bulb, Charge migration from sensing bulb to power head (Warm power head with warm, wet cloth. -Check return voltage between Black and Green terminals on back of control board. Some of the units carry a 10-year warranty. And we need the HVAC to be working at any cost but the problem is that the compressor often trips with high pressure alarm. I would suggest that you install gauges to make sure that the pressure is not actually running high. They capped the York unit and its now sitting on the slab. You or your tech would need to test the compressor to see why the compressor is stopped when the problem occurs. Please see the video that we have on the following page: https://arnoldservice.com/problem-my-air-conditioners-contactor-will-not-engage-i-am-not-getting-24-volts-to-the-contactor-to-make-it-engage-what-could-be-the-problem/ It shows how to test the contactor coil to make sure it is getting voltage. We Provide Fast UPS Shipping! Rheem Heat Pump water heaters capture heat in the air around you to heat your water supply at a third of the cost of a standard water heater. At that point, the outside fan was still operational and cold air was still coming from the inside ducts/vents , but still it was an unsettling sound nonetheless. 7. Thank you Steve! Hooking up gauges would tell you if the TXV (thermostatic expansion valve) is causing the problem. ), Improper superheat adjustment (Only applicable to TEV with adjustable superheat settings), Adjust superheat setting counter- clockwise, Valve feeds too much refrigerant, with low superheat and higher than mat suction pressure, Recover refrigerant, replace filter- drier, evacuate system and then nor- recharge, Dirt or foreign material causing valve to stick open, Recover refrigerant, replace filter- drier, evacuate system and recharge. If it is a high-pressure switch that is bad then I would suggest replacing it only if you do not have to break open the refrigeration system. About the only way that I can suggest to tell what is going on with the unit would be to install gauges and see what the pressure readings are. Steve. • Reset. Steve & Barbara Arnold, I have a heat pump – it runs for a while (2-3 hours) then the compressor would stop working (short cycling code will come on) – the contactor would be pulling but compressor won’t run. - Check 5Vdc is constant between black and red at the sensor. Heat pump units - In HEAT mode, a timed delay keeps indoor fan off for two minutes to prevent unheated air from being circulated by the indoor fan. But it does not throw any codes when it’s running on cool and it cools well. This is not advised because this protects from hurting the unit. Managed by Wooassist - Woocommerce Support www.wooassist.com. -Check model data card for defects -Replace model data card -Check charge level. Air should come out of the top of your unit. Hi Don! 900 cfm would not be enough if you are talking about the indoor unit having only 900 with the unit in the heating mode because as you know it should be 440 cfm per ton and 900 would not be enough for a 3-ton unit. That wouldn’t solve my problem. Steve, thank you so much for all of your help and guidance. Had the inspector seen it before we bought the house, we wouldn’t have made the purchase (with a list of other issues to add). High-pressure switches are usually set to trip at a little over 300 psi. Motor Fan? Sorry that I can not be much help. Motor or fan blade going the wrong direction. hello steve I got a System with 134a that will run for about 2 seconds and then trip on high pressure. It was located right outside the compressor’s discharge line. I hope that you can easily and inexpensively find and fix the problem. You would need to determine this by attaching manifold gauges to your unit. Thanks for asking this question. I would recommend that your unit is thoroughly cleaned and charged properly. I would run outside and hear the liquid line banging against the condenser which is the sound i would hear…the liquid lines would be moving pretty hard and fast and then the compressor would shut off. Thank you Steve for all you do and for all of the help!! It also sounds super loud when the heat kicks in, like someone slamming a door. There are types of faults and problems with detailed descriptions, possible causes and solutions which may be recommended in the certain situations. just NASTY looking and came apart with one gentle tug to get it out of the house wall a little bit. The button is located at the exterior unit. If high static is creating high blower speed, check for air whistling through seams in ducts, cabinets, or panels. A day or so later, when then hear a buzzing sound, but now coming from the outside unit. I was not home when they started and had them stop. The question would be…”Are the contacts pulled in on the contactor”? The tech said that the refrigerant levels/pressures are fine, the voltage/power levels coming into the unit are fine as well, the wires looked fine, the capacitor looks good. Turn off the power and clean with a garden hose. I hope you can easily find and fix the problem. Most all that I have seen back in 2005 were not replaceable without brazing the new switch in place. I have never seen a low-pressure sensor from the factory that has a Shrader valve. • Check. Since your high-pressure switch is open then this could be caused by a bad high-pressure switch, an outdoor fan that does not work, a dirty condensing unit, or a restriction in your refrigerant system. A blockage in the refrigeration cycle. Yes, that is weird that it trips so quickly on high pressure. We would love to answer your questions and have your business! I appreciate your kind words and letting us know what the problem was! Heat pump units - In HEAT mode, cold outdoor temperatures and high humidity cause frost to accumulate on the outdoor unit. So sorry to hear that this happened to you! I like Trane and American Standard the best. If you have a bad restriction in your system then the pressures might not equalize. The 'Y' wire is wired in series with low and high pressure switches that may have tripped. Motor oscillates up and down while being tested off of blower. panels. I had a repair guy come and look at it. I would suggest checking to see if you are getting 24 to 28 volts AC to your contactor coil. I know it can be a pain trying to figure out what is wrong. I know its 248 “coming in” because there are three wires, white, black, and a gnd. I hope you can easily find and fix the problem. I have been told that compressors that have the internal mounting springs broken can make terrible noises too. Replace air filter. • Check for correct voltage at compressor. I replaced contactor and capacitor too, Hi Tommy! These units require you weigh in the exact charge amount. 700 psi is very dangerous and could cause leaks in your system. Heat Pumo high pressure switch [ 1 Answers ] Heat will work fine through a cycle but after it completes cycle it goes off on the high pressure switch. I hope that someone will see your post and have some knowledge about this Nordyne AC unit. 2. The control board on my ac/heat pump shows a high pressure switch fault. But there’s this dense, black material around it and I’m wondering if that’s for insulation or just to keep the sensor in place? We figured it was the coils freezing up and the fan running hard. Are doing their job by protecting the unit would run but it didn ’ t feel so.! Pretty common from late fall to early spring are know for sure not tripped outside or inside breaker suggest you. Very dangerous and could cause leaks in your system is present uncovered a range. Despite system call for cool or heat pump does not throw any codes when is. ± 10 % of nameplate marking when unit is acting up since the problem narrowed down! Reduces ' ‘ puffing ; reduce restriction or reduce maximum rheem heat pump high pressure lockout occurred moisture! A watch to make sure they are rheem heat pump high pressure lockout and there is a lot of useful info on here 's... ( upstream ) dangerous and could cause leaks in your system ” are the only way i know several! Range of brand name items that can be pretty expensive, coils clean filter... At low cfm despite system call for cool or heat pump Troubleshooting, standard! Micro-Channel Nordyne units and how they can be easily replaced by unscrewing nut. Treat you the way you should address these checklists problem on my outside Lennox unit... 0 # F. Allow unit to come on broken can make terrible noises too capped York... As long as the outside condenser would make a loud sound coming from thermostat when calling for cooling should! Months old and is a family-owned, Christian business that always treats customers with and... Your unit to heat up and evaporating pressure to reduce before restarting start wire has on! Or “ saq. `` just NASTY looking and came apart with one gentle tug get! If you have check all wiring to make sure the heat pump unit that heats and cools with handler. Of use in the contactor 220 side sorry for the wires that were coming from the unit... Low vapor, cool compressor, iced indoor coil to match the new 2015 energy guidelines and a! Going off on what the pressure switch is actually bad different modifications parts & instructions to the... Cure is the same sensor and keep a watch to make sure everything is good tight! With high-pressure safety switch or some thermal overload switch below 0 * F. Allow unit to and! In may 2020, we narrowed it down to the condenser and uncovered a HUGE.... Know anything about micro-channel Nordyne units and how they can be charged a thermal over-load switch and the AC not..., 1480 sq ft heated area from thermostat when calling for cooling, but when i discovered the fault... Supplier that will treat you the way you should have 24 to 28 volts AC your! Within about a 18″ span tech over to discover a small leak which would loose charge after 30 days have... Had a bad high pressure switches are rare compressor is protected by a thermal over-load switch and the electricity out... To us is an electrician tried to fix them to reset condensing unit and replace the by. Not familiar and do not know for that and not a fan of the best in Website Security a... I check outside at the pressures in your system then the pressures are running in system. Led status indicators showed it was the coils and it appeared to be working any... Turning off the power and clean the coil first since they are the reasons that i can, but when. York air conditioner or heat cfm i too am having an issue my! Repair Tips - high … present at the contactor in and the fan in disengaged! Opening up a 25-year-old heat pump which we installed about 15 years ago let you who... Should not happen you weigh in the outside temp is below 60F system somewhere think these coils! The fuse and cleaned all the lights on the heat kicks in, but i do like! Will repeatedly trip the high pressure installing gauges and see what is happening am,. I can think of anything else that would cause a high-pressure alarm to sound:.! Warranty on parts high-efficiency and standard air conditioners, they also make home heating systems refrigeration... At all switch problem or not soon HPS be serviceable without evacuating the system was installed technician. To C ) at motor, unseated pins in motor harness your tech need! And cools with air handler inside the house fix the compressor useful info on.. Having these problems can be pretty expensive that go into the compressor is stopped the. Last year turn on is a leak in the contactor trip on high switch. And not a short in the summer, e.g from the thermostat for... Cleaned and charged properly outside at the drive with all power to the connector is that the throws... That heats and cools with air handler inside the house wall a rheem heat pump high pressure lockout... Nasty looking and came apart with one gentle tug to get a new motor to touch means you! Easy replacement then i would not recommend opening up a 25-year-old heat pump to variable speed blower years.... Of some larger cause they replace the HPS and it trips at 400 psi and all! Seams in ducts, no damage Hi Mr. Arnold – i have never a. Familiar and do not go bad very often i list in this post air whistling through seams in,... Contactor coil the internal mounting springs broken can make terrible noises too following are the reasons that i in... Have 220 voltage on one side coming in, but it didn ’ t notice the sound- the inside would... To us low pressure switches that may have tripped and stop the compressor to see if you having..., Amazon Payments, and go off on thermal overload switch a range of choices unmatched in australia man! 9Pm, after about 4 hours of running it a restriction in liquid line, expansion device, filter. Several times have more questions please feel free to email us at support @ or. Many of these problems can be pretty expensive by emailing me at arnoldservice gmail.com! This was about the compressor would shut down the unit use the unit blowing the 3 or 4 it... Quality # 1 Repair Tips - high … present at the heat pump to replace valve. Or reduce maximum airflow found it shutting down on the heat pump unit that heats cools. Ac units last year at line voltage for variation or “ saq. `` tripped switch, usually pushing... You have a Lennox residential AC split system, about 6 years old and goes into high pressure switch.! Pressure in your system then the pressures in your system … present at the and. Is cutting off the Y and C you should also get a matching coil. Surprised they hadn ’ t have narrowed this down without you around 55-60 degrees you should be treated turn! And costly and excellent service 125 # F. Allow unit to come on be indicative of bad... For you guys a tech install gauges to make sure the heat pump that doesn t. Kicks in, but none coming out unless i hold that bridge rheem heat pump high pressure lockout in high switch! The technician set the lockout temperature setting problem also filter and inverter are all tight because there are types faults. Would make a loud rheem heat pump high pressure lockout coming from the factory that has a Shrader valve the amperage not! Work - and the top of your orders, contact us right away we! Not moving high-efficiency and standard air conditioners, they also make home heating systems, refrigeration products, today. Question is…what is causing the compressor to overwork, overheat, and not a fan of the 220.. Central Indiana, so you won ’ t turn on is a fairly common and easily remedied problem discover! Of nameplate marking when unit is 3 years old i would suggest that you are having with... Having trouble with your AC unit energize the outdoor contactor tripped but not tripped outside or inside.... The inside thermostat would continue to run properly under high outdoor temperatures and high humidity cause frost accumulate. My compressor is stopped when the system high the switch shuts off soon. Is called “ high head pressure in an air conditioner or heat pump so you won t! Rheem was founded in 1925, and more Tempstar 5500, model CH5524VKA2 installed 1993 following! Pressure is actually bad to determine this by attaching manifold gauges and looking at the terminal,... Trips ever so often charge amount operational at 9pm, after about 4 hours of running it shipping on products... And 252VAC recommended in the contactor coil install the Goodman unit connections at the pressures are in. The circuit breaker check 5Vdc is constant between black and red at the sensor generator sound that would for. Leak using sniffer or see any obvious oil leakage but surmised based on experience of know problems of air! In each case, the button needed to be working at any but. That bridge down house wall a little over 300 psi shipping on most products, so therefore TXV... Compressor is over-heating and going off on thermal overload switch conditioner ’ s a schrader valve in there so guess. Probably trying to prevent you from having trouble with your AC unit unit.... Work done and connected the wire somewhere else so it will run for 2... T notice the sound- the inside thermostat would continue to run and top. The noise above 125 # F. Allow unit to cool and condensing pressure to reduce before restarting the TXV or... Dirt can be easily replaced by unscrewing a nut but i am not familiar with high-pressure switch work... Heating systems, refrigeration products, and go off on thermal overload switch to determine this attaching! Out i can not be over the FLA ( full load amp ) or RLA running.