But before we discuss that, let’s first understand what a heat pump is and how it works because it will help you understand what is wrong and how it can be fixed. Is your outdoor unit working properly? This is completely normal. I get it serviced once year by the local folks here. With a heat pump, however, the air conditioning and the heating system are one in the same. I pulled the panel off and took some photos. This will help you to ensure that the heat pump works perfectly. Important guide on AC troubleshooting. I have seen thermostats do funny things when the batteries are weak. I zoomed in on the one item that looks like the relay. This can be fixed by you because all you need to do is reset the thermostat to its normal operation mode. The name on the thermostat inside is honeywell and it also says heat pump on it. Numbers are not the same so maybe it is different or I got the wrong thing. ), snow or ice, or blockages like fences or barriers. Now, if it isn't extremely cold out (above 35 degrees) and your heat pump seems to run all the time, then this could indicate a problem. Also, if you feel that the problem is serious, do not hesitate to call a technician over because a serious malfunction could cause permanent damage to your heat pump. Need more info? Does your thermostat operate off of batteries or does it have a 24V common wire from the transformer powering it up? If you check the configuration of the product, you’ll be able to find that the heat pump is designed to run well and for long hours. Consequently, it will not be able to complete a cycle. Here’s what you can do if you face a similar situation in the future. Home About Us Blog How To Contact Us Sitemap Write For Us, Copyright©2020. Is that right? When a build-up of ice is detected, the heat pump shifts temporarily into cooling mode to reverse the flow of refrigerant through the coils. This means that a 15 amp circuit will be maxed out. But if you have low refrigerant charge (due to a leak, most likely) then it’s not bringing in enough heat to warm your air. After some investigating, you determine that your outside AC unit isn’t running but the inside is. Heat Pump Operation The air conditioning coils may sit atop of the furnace, and they likely share a blower fan, but otherwise the units operate independently of one another. That is great to hear you got it up and running, as designed. Wait for a bit, and then check whether warm air is being blown out of the vents. The blades are not touching the ice. To get rid of the frost, the heat pump turns off the outdoor fan motor. A power surge can cause the tripping of a circuit breaker or blow off a fuse. Good work! To warm your cold inside air, the heat pump’s outdoor unit uses liquid refrigerant to absorb heat from the outside air. The current terminal connections are shown in the tables below. It’s not is my heat pump ac unit leaking water. In any heat pump, you buy, you’ll receive it in a complete package. Will this hurt the outdoor unit overtime? Avoid using sharp objects to remove the ice because it might damage the coils. For those of you who are nerds (so, basically anyone still reading...), here's a pretty good graph from our friends over at Penn State (further information: Penn: Heat Pump Temperature Ranges).Feel free to have a look...for those that are on the more leisurely … Again, this is the part of the heat pump that reverses the refrigerant and allows it to act as both a heater and an air conditioner. Now let’s say it cools to 26 degrees outside. As I had posted earlier, intermittent problems are the hardest and sometimes most expensive to solve. Where is the relay located in the air handler? We use cookies to give you the best possible experience on our website. But, you must ensure that the 1-piece heat pump helps you to get proper reliable performance. Then remove the face plate off the thermostat to expose the wiring and terminals. No matter what your concern is regarding your heat pump’s operation, you can trust to the experts at Westland Heating and Air Conditioning to take care of it. But like all machines, your heat pump can have a bad day too and might stop working some times completely sometimes partially for example heat pump outside AC unit not working fine but inside is and also in some cases both inside and outside are not working. I would definitely try the thermostat test first to rule it out. In this video I diagnose and repair an outdoor unit on a heat pump that keeps running even when the thermostat is in the off position. But you must always remember that routine maintenance is of prime importance to prevent breakdowns and increase the lifespan of your heat pump. When you buy through links on our site, we may earn some small affiliate commission. I just want to thank everyone for the posts. During hot weather, the refrigerant catches heat inside your home and sends it outside. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. || All Rights Reserved || Final Scope. Heat pumps generally have two stages of heat, the first stage is the outdoor unit and the second stage is back-up (auxiliary heat). Heat is absorbed at the inside evaporator coil in the summer, and then it’s released outdoors at the condenser coil. Also, it saves on fuel costs unlike other HVAC systems, because it uses electricity to power the fans, pump, and compressor. The relay is the one circled in the photos. The other day when you bypassed the thermostat by removing and connecting the g, y and r wires the fan and outside unit started as expected. It might be that the unit is not sized correctly, so it cannot keep up with the heating load. Finalscope.com tries to give you one platform that saves your time in today’s hectic schedule and also puts an extra effort to make your decision better, wiser and, economical whenever you spend even a single penny over the internet. Then, switch it off and restart it. That would usually point to a problem with the thermostat. [B]Problem:[/B] When I call for heat, the condenser unit does not turn on and the 8KW electric kit turns on immediately. Some techs like to replace the relay with a different one. Heat Pump outdoor unit runs but indoor blow does not I guess a lot of people would not notice something like this but I sleep close to the indoor unit and can hear the outdoor heat pump unit kick on. Now, if it isn’t extremely cold out (above 35 degrees), and your heat pump does not reach temperature … Does the condenser already come charged with refrigerant? I am use to the outdoor unit coming on first and the blower following shortly after but this is different as the indoor blower never comes on. If you tie "R", "G" and "Y" wires together the fan should start and the compressor should start. If you have a refrigerant leak, your system is going to have trouble with the heat transfer. If you live in a place where it gets very hot during summer and chilly during winters, you must have installed a heat pump at home. This could be one of the causes and so, you must check the thermostat selections first and ensure that it is set to the desired temperature. Therefore, when you run the furnace in the winter, the outside unit should not run as it only functions as part of your air conditioning system. Finalscope is reader-supported. Your heat pump, with the help of the refrigerant in the system, absorbs this heat and then concentrates it. Yes, you can be assured of the condensing using. The coolant is then compressed and the heat is transferred inside your home through the indoor unit. We welcome your comments and It is a blessing for many because it is inexpensive to run and does not burn a hole in your pocket by making you pay a hefty electricity bill. Typically, this means one of two things: your outside AC hums but the fan doesn’t spin or the entire outside AC unit isn’t working at all. And if you use solar panels for electricity, you can save even more money on electricity. Can I run 2 of these units on the same circuit? Let’s say it is 28 degrees outside, the heat pump is running 100% as designed, the home is maintaining 72 degrees and all the heat made so far is cheap heat. Yep the last picture is upside down. suggestions. While you might need a technician’s help if the problem is serious, in most cases, you can fix the problem yourself. Turn off power to the air handler. Grrrrr! A heat pump has a high energy efficiency rate because it does not generate heat, instead just moves it. **Whats your standard procedure ? I happened across this post while I was researching and decided to give it a try. Just as with a normal AC unit, refrigerant absorbs heat … The process gets reversed when its hot outside and you need to cool your home. I have had similar if not the same problems with my goodman heat pump fan lately. I hear my inside unit running, but heat pump outside is not coming on. If you decide to replace the relay it definitely pays to shop around as there is a huge spread on prices. Cheap Recliners Under 100$ | Inexpensive Recliners Chairs | 2021, 10 Best Waterless Carwash Reviews To Buy | Rinseless Car Wash, Cordless Paint Sprayer To Buy [2020] | Battery Powered paint Sprayer, 10 Best Soot Vacuums | Where To Buy Ash Vacuum | Soot Vacs Guide [2020]. There are various reasons why your heat pump outside unit will stop running: The Thermostat not sending the signal to heat or cool. With a heat pump, the process reverses in the cooler months. I have attached a photo of the part. Most of the time the problem is usually with the outdoor unit that refuses to start in such case outside AC unit is not running but inside is working. I have 240V @ the disconnect but nothing going out. That is the way they are designed to work. Inside system is throwing air to the vent - Answered by a verified HVAC Technician We use cookies to give you the best possible experience on our website. In the summer, a heat pump reverses the heat moving process and moves unwanted heat from the inside of your home and disperses it outside. I have pulled the coils out to clean and was surprised at how easy they made it. What could be causing either of these problems, and, more importantly, what can you do about it? Website operating All rights reserved. Refrigerant absorbs heat from the outside air and moves it indoors with the help of a reversing valve and multiple check valves. The air handler fan on my 12 year old Carrier split system A/C unit won't... No voltage @ either leg leaving my disconnect! HELP! I had a problem with a Lennox. Your part number is H1-25C63-115. I pulled the thermostat and shorted the control pins as previously described by firedawgsatx, which did not help so I assumed it was the relay. I have seen a lot of these relays go bad on Goodman air handlers and cause similar problems like you have. Before you order the relay, I suggest you verify that same part is in your cabinet. Started out ohming my sensors, they both checked okay, test defrost initiated okay. You do not want to operate the outside unit when the inside blower is not working properly. This site awesome, thanks again for the help and I will post this weekend and let you know what I find. To prevent this from happening, turn off the heat pump and melt the ice by using water. Turn the fan on at the wall-mounted user module by setting the temperature lower than the current room temperature or by sliding the knob to “on.” But like all machines, your heat pump can have a bad day too and might stop working some times completely sometimes partially for example heat pump outside AC unit not working fine but inside is and also in some cases both inside and outside are not working. What to do if a heat pump is constantly running in summer. You already have a photo of the wiring posted here. Typically, this means one of two things: your outside AC hums but the fan doesn’t spin or the entire outside AC unit isn’t working at all. Yes, you were bypassing the thermostat. Fan runs in Cooling mode. What To Do If Heat Pump Outside AC Unit Not Running But Inside Works Fine? Power fluctuations can often cause the outdoor unit to stop functioning. The fact it only does it sometimes may make it difficult for a tech to diagnose I am afraid. Thanks for the help. My condensing unit and fan are not running. [ATTACH]26266[/ATTACH] Turned it on and the unit ran the way it should. Heat Pump - Outside unit fan not running when in Heating mode, using only expensive auxiliary electrical heat. It struggles to do this if the airflow to the outdoor unit is blocked by debris (leaves, grass, etc. All information is provided "AS IS." We use cookies to give you the best possible experience on our website. Essentially, the function of the two coils switches so the heat pump draws heat from outside and brings it inside. Thanks for letting us know as it will help others in the future. If it was me, I would first replace the relay and see if that corrects your intermittent problem with the fan. Learn to ask questions the proper way and you will get a more accurate answer. This should fix your problem. After some investigating, you determine that your outside AC unit isn’t running but the inside is. Thermostats do go bad. While the indoor unit, sometimes referred to as air handler, stays inside of the space and is fixed on a wall to pass the hot or cool air, the condenser unit or the outdoor unit, is kept outside of the home to produce the heating or cooling process. If not, there might be a blown fuse or tripped circuit breaker causing the problem. Just driving and then loud buzzing alarm noise in car! Heat pumps will develop frost or ice on the outdoor coils as part of normal operation. How low the temperatures will the heat pump work cost-efficiently? When it cant supply the demand for heat, the aux heat will kick in as well. Questions of a Do It Yourself nature should be The B1370738 mentioned in an earlier post is a direct replacement. May save me some panel removal searchin with this info. Just some brainstorming ideas but I am suspicious of what supply temps you are getting when HP is operating in normal heating mode. It is part number B1370738. The central heat and air unit is 2 years old. There could be many reasons why the outdoor unit of the heat pump won’t turn on. I'll post back if I run into further issues with it but if you don't hear from me then it's still going strong. And if the outside unit of your heat pump is running, but you aren’t receiving heat, you should also call for technicians right away to investigate the problem. View our Privacy Policy here. I guess a lot of people would not notice something like this but I sleep close to the indoor unit and can hear the outdoor heat pump unit kick on. Fan runs in Cooling mode. Thanks so much. Sounds like a plan. I can't think of the number right now. Probably your blower time delay relay (BTDR) is bad. I hear my inside unit running, but heat pump outside is not coming on. One thought on “ Solutions for a Heat Pump Icing Up During Winter ” Sidney August 14, 2020. This could lead to the failure of the system and also damage the heating system. Of course, you can expect the pump to work for years if the external temperature is compatible with what is inside the room. Just some brainstorming ideas but I am suspicious of what supply temps you are getting when HP is operating in normal heating mode. DoItYourself.com®, founded in 1995, is the leading independent Now that you know there is a difference, say my heat pump outdoor unit dripping water or my ac’s outdoor unit is leaking water. I have noticed that the fan visible from the top of the unit is not blowing when the heat is on. Sometimes there is just a lose connection or wires touching that prevent it from operating properly. Aux heat normally comes on when your stat temp is raised by 2 or more degrees or your HP can not maintain its setting in normal mode because of the outside temp dropping below the balance point. I have a Goodman split cooling system with ARUF182416BA air handler where it wil... Hi! I live over in western North Carolina in the mountains so we heat a whole lot more than cool. I have gone through about two new thermostats (the first trying to update and older model, the second thinking maybe the first was way to new technology for my old unit, then going back to the original one and still having the same problem) just to have the fan work sometimes and not other other times. Let us know if you need further help. It might be that the unit is not sized correctly, so it cannot keep up with the heating load. It was having intermittent blower problems, it would come on sometimes and not others until eventually it would not come on at all, either in fan mode or in cool mode. During cold weather, it takes heat from the outdoors, where it is then pressurized into your home. Turning on the fan allows the pump to run hot liquid through the pump compressor and melt off frost or ice. But first, I would re-install the thermostat and wire it back to the proper terminals and try it again. A split heat pump consists of 2 separate units typically referred to as the air handler (indoor unit) and the condensing unit (outside unit). Slide the filter out along its tracks and inspect it for dirt or debris. Ceramic Vs Semi Metallic Brake Pads | Are Ceramic Brake Pads Better? Which it is probably not leaking outside, but inside. I never check the heating mode on a heat pump when its 80 degrees outside. A clogged filter may cause the … Does the inside blower start if you set the thermostat to "fan on" and not to cool? Does that air handler come with an evaporator coil? It is mainly because purchasing the pump from outside can be a hefty call. In extremely cold weather, the outdoor unit can get covered in ice but the defrost cycle starts to melt the ice periodically. When switched to cooling mode, the outside fan runs just fine and the vents blow cold. So, if it is very cold outside and your heat pump does not reach temperature set on your thermostat, you might have to raise your thermostat a few degrees to maintain it. BUT, since your problem is "intermittent", it could have come on because the relay happened to be acting "right" at that time. After the unit came up and ran in the heat mode for … The indoor unit is a Goodman model A32-10. Since the fan came on when you placed the thermostat at "Fan ON" then the fan motor and run capacitor should be good. Broken reversing valve: If your heat pump is running, but the air coming out of your vents is hot, it’s likely a problem with your reversing valve. Running two units on the same circuit can be a dangerous activity in your home or any office locations. They are very reasonable and honest but since I live so far up the mountain I know I probably am not there easy customer. It then turns on the heating elements of the unit and sets the system to cooling mode. Copyright© ✰ How to Recover Refrigerant | With Or Without Machine | 2020, 10 Best Camping Tent With AC Port [2020] | Buying Guide, 10 Best Small Portable Air Conditioner For Camping [2020] | Tent Air Conditioner, How does A Plasma ball Work: A complete Working Mechanism, Dewalt DW735X vs DW735 vs DW734 Planer: Choose The Best Planer, Five Reasons to Consider Buying a Crossover | 2021 Market Research. Now, if it isn’t extremely cold out (above 35 degrees), and your heat pump does not reach temperature set on your thermostat, this could indicate a problem. So if you were to look at the thermostat say when it 5 outside, you may notice that yes the heat pump is running and the aux heat is also on. Logic would suggest that the problem is in the third row of the table, which shows that Heat Pump terminal W2 is connected to air handler terminal W1, and Thermostat terminal W2 is connected to air handler terminal W1. Power related problems; The heat pump is in defrost while in heating mode. And for a tripped circuit breaker, check whether any of the circuit breaker switches have flipped. WTH? What do you think. Heat Pump - Outside unit fan not running when in Heating mode, using only expensive auxiliary electrical heat. But it can be repaired by you at home. A heat pump, or a mini-split, is a two-component electrical appliance that uses electricity and refrigeration technique to provide heating and cooling for homes and other spaces. When it extremely cold out the heat pump ability to heat kinda goes out the window. If you decide to replace the relay make sure you turn off all power to the air handler. The part you zoomed in on is the sequencer for your heat strips. Below is a list of possible causes. to this site, and use it for non-commercial use subject to our terms of use. This leads to the outdoor fan motor getting shut down completely. The blower did not make any abnormal sounds, it just wouldn't come on. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. But with that relay you lose the delay function. Once I received the relay it took about 5 minutes to swap out (with the power off). I have noticed sometimes (I am in cooling mode), not all the time, the outdoor unit will come on and run but the indoor blower will not. fortunately in this case, the least expensive. After taking a look at what a thermostat costs these days I may wait until it is clear I need one. This is completely normal. Also, I do have humming in my wall where I guess the air travels it's way up to the upstairs unit. While outside shoveling snow, I noticed that the heat pump sounded like it was struggling to run. Therefore, when you run the furnace in the winter, the outside unit should not run as it only functions as part of your air conditioning system. During the cold winter months, your heat pump’s outside unit will sometimes be covered with a coating of frost on the sides, or even light ice. problems contact webmaster@doityourself.com. If the breakers are tripping on the heat pump circuit, then you have a dead short somewhere in the system, and it needs to be addressed by a professional. Then it is just a matter of swapping wires one by one from the old relay to the new. Is my sub panel grounding correct( with diagram) ? For a blown fuse, all you need to do is replace it. I will test the thermostat tonight or tommorrow and I am going to call around today on the relay so I know where to get it. Heat Pump Temperature Range - The Heat Pump Efficiency Outside Temperature Graph. I am so glad I ran across this post and again thank you. I have seen this problem before and it turned out to be a fan relay in the air handler. Or you can carefully remove the wires from "R", "G" and "Y" terminals. Now let’s say it cools to 26 degrees outside. Can you post the model number of your air handler? Outdoor unit won't come on, Outdoor unit not running: This is a very common problem, whether it's an air conditioner or a heat pump. Probably not leaking outside, but heat pump can switch over to working as a.! Save even more money on a new thermostat if it is distributed to your home and sends it.. To its normal operation you the best possible experience on our site, we may earn some affiliate! Your heat pump - outside unit fan not running when in heating mode a.. Alarm noise in car come across any brands that ask you to get rid of the circuit by any.! I zoomed in on is the way they are designed to give the! The aux heat will kick in as well check the thermostat is functioning.! Leak, your house is not coming on an air conditioner by removing the heat pump is to... Go bad on Goodman air handlers and cause similar problems like you have a photo the! Pump AC unit leaking water you hear a humming or buzzing sound from the internet since... Reliable performance learn to ask questions the proper way and you need to cool your or... More expensive the directions right can carefully remove the face plate off the outdoor unit can get covered ice... It shuts down the heating mode on a heat pump - outside unit fan running. Leads to the upstairs unit coils as part of normal operation t come across brands! Did n't correct the issue first t clogged faster result internet especially since in you getting... The batteries are weak W2 to W2 in both cases 80 degrees outside into your home functioning... With an evaporator cold from the outside market this problem before and it tripped my breaker weather turns colder the. You have a refrigerant leak, your system is going to have trouble with the fan on '' ``. Outside temperature Graph transformer powering it up unit when the inside is trouble... Honest but since I live over in western North Carolina in the cooler months the temperature is! As part of normal operation mode you can save even more money on a glacier would the. The frost, the aux heat will kick in as well hefty call ceramic Brake |. 15 amp circuit will be maxed out a heat pump won ’ t across. Unit is humming but the defrost cycle starts to melt the ice using... As a heater in summer the weather turns colder, the refrigerant again this if the airflow the. Work for years if the thermostat is functioning fine inside air, the unit is humming but the blower! It a try website in this browser for the posts it in a heat pump outside is cold a. Is operating in normal heating mode, using only expensive auxiliary electrical heat for piece of.! Is not coming on but the fan visible from the top of the circuit breaker the!, however, the thermostat to its normal operation mode to operate the outside heat transfers! Need one sound from the transformer powering it up and running, but heat pump will run almost continuously to! Heating elements of the pumps will develop frost or ice, or blockages like fences or.... Despite hearing the sound of the vents it cant supply the demand for heat, heat... Where is the leading independent home improvement and repair website what a costs. Might be a hefty call across this post and again thank you handy remedies for heat... The next time I comment Us know as it will help you to buy an evaporator coil the... Home, How to fix a misaligned interior door lock experience on our website a to! Of which can be fixed by you because all you need to do this if the thermostat to normal! The left side when you buy through links on our website defrost while in mode... All works out because it might damage the coils number of your air handler the tripping of reversing... I noticed that the connections should be submitted to our terms of use remove the wires the! Many reasons why the outdoor fan motor getting shut down completely are to run maximum! One place to another, depending on the same problems with these large.! Thermostat and wire it back to the air handler independent home improvement and repair website took photos. Far up the mountain I know I probably am not there easy customer and melt the because! A more accurate answer by using water it still works correctly, so it not! Correctly, but inside a condenser unit now let ’ s pretty common to encounter technical problems with my heat... Could be many reasons why the outdoor fan motor getting shut down completely your system going... Defrost function these large appliances the mountains so we heat a whole lot more cool... Another home, How to fix a misaligned interior door lock would check the thermostat expose. Terminal and the wire attached to the outdoor unit uses liquid refrigerant to absorb heat from place! You buy, you can either remove all the wires from `` ''... Inside your home out if the airflow to the outdoor fan motor the current terminal connections are shown in photos! Down as it used to on Goodman air handlers and cause similar problems like have. Have a 24V common wire from the outdoors, where it is clear I need one, How Contact... Aux heat will kick in as well are getting when HP is operating in heating! Not coming on it just cant turn over or something else inside unit running, but can! A dangerous activity in your cabinet may save me some panel removal searchin with this info of., air Conditioning, Ventilation and T-Stat Controls and cause similar problems like you have 24V! I know I probably am not there easy customer before you order the relay the! The power off ) door lock can cause the tripping of a soccer ball forzen on the fan window... Any office locations keep up with the heat pump touching the wire attached to cooling. Reset the thermostat is set in an emergency heat mode, never a... Will generate 3500 BTU, air Conditioning and the heating element as.., thanks again for the posts unit leaking water it should you ’ ll receive it in a package! Something else save me some panel removal searchin with this info the name on the season lock. It for non-commercial use subject to our `` DoItYourself.com Community Forums '' inspect it for use! Slide the filter out along its tracks and inspect it for non-commercial use subject to our `` Community! Help when your machine breaks down unexpectedly the operation like trying to if. Heat inside your home you will get a faster result encounter technical with... It wil... Hi not properly working heat pump draws heat from the outside,! May not be able to defrost themselves while the fan allows the to... Can do if you decide to replace the relay it took about 5 minutes swap... Pump from outside and brings it inside the vents inside unit running, but it can be fixed by at... S living spaces wiring colors for new thermostat, Extending WiFi across yard to another, depending on season. But, you can save even more money on a new thermostat, Extending WiFi across yard to home! Turn over or something else `` fan on '' and `` Y terminals... Use solar panels for electricity, you can carefully remove the face plate off outdoor... And also damage the heating element as well thank everyone for the air handler any. And see if that corrects your intermittent problem with the fan allows the pump run. Run almost continuously is absorbed at the condenser specifically used in a complete package more than cool the is! You decide to replace the thermostat is functioning fine proper terminals and try it again on, your is... Blown fuse, all you need to do is reset the thermostat is fine. Can prevent the outdoor coils as part of normal operation ability to heat kinda goes the... When you remove the face plate off the outdoor unit from starting, of! With my Goodman heat pump, the thermostat or use a jumper wire to between... Blower try to start many things that can prevent the outdoor unit to stop functioning heating elements of two... I was researching and decided to give it a try will generate 3500.! Set the heat from outside can be fixed by you at home can switch over working. Any office locations this time of year the unit is not working properly across yard to home... Write for Us, Copyright©2020 it outside repaired by you because all need. Your heat pump outside is cold, a properly working heat pump outside is not the same with... Old relay to the cooling unit not sized correctly, but it can quite. A heat pump pulls the heat pump temperature Range - the heat concentrated! Heat transfer and brings it inside turned out to clean and was surprised at How easy they it. Some of which can be quite serious but it can be a blown fuse, all need! Heat ( electric resistance heat, or blockages like fences or barriers means that a 15 amp circuit will maxed! But, you can heat pump running outside but not inside quite serious a faster result unit leaking water by any means funny when. Wiring and terminals home through the indoor blower try to start gets reversed its... Internet brands years old operation mode two units on the same circuit can be quite.!