Set your thermostat to 68 degrees Fahrenheit and keep it there During those cold winter months, it’s best if you keep your home at 68 degrees. Electricity use is way to high this way. Wku, Before you unhook your aux. Replaced the Ritetemp because touch screen went out. So 85-92°F feels cold to new heat pump owners. If you have a heat pump, it is best to increase your heat setting by only two degrees at a time to prevent your auxiliary heat from operating. 3. Once it gets close to the actual setpoint, the aux heat de-energizes and the heat pump mode of the system remains operating to generate heat and will shut off if the temperature is satisfied. Make sure your thermostat is set to heat. Add a few layers to your outfit or sleep with an extra blanket to keep your furnace from working so hard. The bill is much higher than last year. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! IMHO heat strips shouldn't be needed until 25 or so right? Once it gets close to the actual setpoint, the aux heat de-energizes and the heat pump mode of the system remains operating to generate heat and will shut off if the temperature is satisfied. The first step to fixing your thermostat's heat setting is to press the "Up" arrow and the button which says "Switch to Permanent Hold." It is really too cold for a heat pump. Plus I can always hook it back up if I think it gets to cold during defrost. I'm trying to figure out how to use the aux heat less. Another person came in from the company and fiddled around after we called to ask what they had done, and now, the auxiliary heat keeps coming on (I have never noticed it being an issue prior to this). Your auxiliary heat, as just described, supplements your heat pump’s heat when it needs it. Aux heat. AUX heat turns on to keep you warm. The outdoor sensor will only allow me to set it to 40. Then we explore the furnace issues that can also cause no heating at all. Replaced the Ritetemp because touch screen went out. It is so cold. I live in Southern TN and it doesn't get too cold. heat? So the Aux. heat I would compare usage to last year. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. I don't like them. Limiting the use of auxiliary heat can be an effective means of saving money. heat is on. I think I can get more out of my heat pump than that. Our suggestion would … If the temps don't get below 32 is there any reason I can't just run off of the heat pump? First off, AUX heat refers to your heat pump’s auxiliary (backup) heat source.Auxiliary heat kicks on when your heat pump can’t produce enough heat to warm your home by itself. However, when the pump is not working, due to an electronics failure or the motor of the auxiliary pump being broken, the heater core will not be able to heat … Heat pumps can be a great option for any homeowner, pretty much anywhere! Helping You to Do It Yourself! This is plenty warm to heat your home to your desired 72°F. If the heat pump fails you need the Aux heat. However, aux heat always comes on during normal heat calls. If the heat pump cant keep up the aux heat will kick in to aid in reaching desired heat pump. Your first stage heat is your heat pump. Electricity use is way to high this way. Get the installation instructions and change the system designation to “1 heat, 1 cool” heat pump. If it gets colder outside than the set lockout temperature, your heat pump will use AUX heat. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. You need to switch your setting from Heat to Emergency Heat on your thermostat, and this will turn off your heat pump and turn on your electric heat. 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. After several minutes the auxiliary heat kicks in even when temps are moderate 30 degrees and above. Is the aux running with the HP or by itself? EM heat is NOT the same thing as AUX heat: AUX heat signifies that your heat pump has automatically switched over to backup heating because temperatures are too low. The optimal heat pump temperature range is above 25-30 degrees Fahrenheit. This is where your energy efficiency disappears and your high energy bills appear. rates have went up. Thanks. AUX heat turns on to keep you warm. You can change it from the Nest app or from your thermostat. Here, we discuss no-heat problems, not partial-but-insufficient-heat issues. Pop the stat off the wall, using a tiny screwdriver (stat screwdriver), pull the wire off the “W” terminal. We are using the Carrier programmable thermostat (66 at night, 70 in morning, 66 when we leave, 70 in the evening). Don't know alot about outside thermostats but will look into them. The auxiliary heat setting is more energy and cost-efficient than emergency heat. For a better experience, please enable JavaScript in your browser before proceeding. I have a Honeywell Th8000 series thermostat. They can be set for different cycle rates. heat is kicking in, which is normal. The problem could be your thermostat settings. Defrost is basicly the same thing as running the a/c in the summer untill the coil is thawed. As you might imagine, heat pump operation in cold weather is not the best, which is why they are typically only used in temperate climates...think beaches, palm trees, and oranges. When the heat pump goes into defrost mode and heating of the space is required, the aux heat will come on while the unit is defrost to maintain temp space. I created this video with the YouTube Video Editor (http://www.youtube.com/editor) It is really too cold for a heat pump. They are the most cost-effective option (when compared to other electric heating methods that create original heat), and they can be a great way to optimize your year-round heating and cooling costs. 1. You will not bring on the back up in defrost that way. When you install the sensor. But, the air coming out of the vents can feel cold for a couple reasons: Gas furnaces produce air that is 130-140°F range. Although they are one in the same heat strips in the air handler. As you might imagine, heat pump operation in cold weather is not the best, which is why they are typically only used in temperate climates...think beaches, palm trees, and oranges. Sometimes thermostats will display “auxiliary heat” or “aux heat” on the wall display in your home when this occurs. Thanks. with electric heat you should basicly run unrestricted. For a better experience, please enable JavaScript in your browser before proceeding. If it is operating and you don’t pay a gas or propane bill, you most likely have a heat pump! All functions of the defrost cycle appear to be normal except that noticeably COLD air blows out of the registers when system is in the defrost mode. It generally takes 30 minutes for the defroster to do its job, but it needs air flow to do so. Temps right now are around 20 at night and 30-31 during the day. So, your heat pump switches to “AUX heat” when it’s in heating mode—and you’re wondering if it’s normal. Thermostat is working correctly, wondering what component in the compressor unit is controlling the activation of the auxiliary heat. rate : is that for the compressor when it is on air conditioning or does that include heat also for heat pump? The aux (or emergency heat) should come on when the outside unit needs defrosting. Blocking heating vents causes your furnace to work harder and longer than intended and can shorten its life. 3. Ok so 250 and 270 are the same but you can set them for different cycles but they still run the aux. Once the temps get lower, the aux heat will kick in on occasion to help the heat pump maintain my set point. Awesome info. Disconnect W on the heat pump. Setting the lockout temperature is important if you want to minimize the use of AUX heat. To limit auxiliary heat and lower your heating costs, a critical first step is to set a lower indoor temperature. I missed the 40deg. There’s 2 ways to prevent the auxiliary heat from running on that stat. If I had known, I would have asked for gas on the second and third floor for sure!! Don’t use your emergency heat setting unless your heat pump is malfunctioning or damaged. Extremely efficient, this process produces two to three times more heat than the energy it uses. There is no reason to ever lock out the heat pump. Last year I also had a Rite Temp t-stat that did not use the aux heat nearly as much as the current honewell. Knowing the difference between your heat pump’s auxiliary heat and emergency heat will help address the question from above. No you don't want to remove it from the thermostat. No aux heat. Once you feel the heat coming from your return vent, head outside to observe that metal cabinet. But if the temperature is above the mid 30’s and it’s still running all the time, you could have a service issue, such as leaking refrigerant, a frozen outdoor unit (as we mentioned in heat pump troubleshooting problem #1), or compressor problem. When there's not enough heat in the outside air to meet the demand of the thermostat setting, an electric heater supplements the outdoor air to warm the home. Auxiliary Heat. Yes you can run much lower that that. Reply: Anon We are using the Carrier programmable thermostat (66 at night, 70 in morning, 66 when we leave, 70 in the evening). Heat pumps do run longer and put out less heat as compared to a furnace. 2. Well, we just received our Hydro bill for two months, and it was a whopping 30% increase compared to last year; $966. EM heat is an option on your thermostat that you can manually turn on to activate backup heating. By the way, what is your opinion on Ritetemp stats? heat. Easiest thing would be to just buy the outdoor sensor and adjust from that,others can probably give you more advice on the programming. The home temperature raises to a point just short of the thermostat set point and then the auxiliary heat turns off as soon as possible. The part that gets me worse is that the aux heat comes on to even keep it a 70. 4) Auxiliary heat is malfunctioning Below 40 degrees, your heat pump struggles to heat your home. However, aux heat always comes on during normal heat calls. Closed heat registers can cause other issues, as well. The heat pump pulls the heat from this cold outdoor air and sends it inside to warm your home. You shouldn’t ever use EM heat unless there’s truly an emergency—like your heat pump isn’t working— … Emergency Heat, also known as “auxiliary heat”, is the second stage of heat that your thermostat runs on when the temperature is too cold for your heat pump to extract heat from the outside. The Heat Pump cannot handle this temp. If it’s 30 degrees outside, it is unreasonable to expect the system to maintain an indoor temperature of 78 without using the heat strips. 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. I'd also connect it to the W3 as I said before. So that when you go away, it isn't bringing in the aux heat right away anyways. So, your heat pump switches to “AUX heat” when it’s in heating mode—and you’re wondering if it’s normal. So it relies on an auxiliary (AUX) heat coil (like the ones you see in a toaster) or a furnace to heat your home. I've been having the same issue with my heat pump. The most common heating and air system around is the heat pump system, which pumps heat out of the house in the summer and into the house in winter. With 2 degrees set it always comes on. EM heat is an option on your thermostat that you can manually turn on to activate backup heating. JMO. JavaScript is disabled. The aux heat comes on too much and is jacking up my electric bill. The bill is much higher than last year. If the heat pump cant keep up the aux heat will kick in to aid in reaching desired heat pump. Clean off your heat pump and clear away any debris that may be blocking the way. This is set at a default 35F (1.7C), so the heatpump will not be used when the weather outside is below 35 degrees … heat? When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions. Therefore, a heating system stuck in AUX heat will run up an energy bill. Disconnect W on the heat pump. Therefore, if it’s below 40 outside and the auxiliary heat isn’t working, then your heat pump will just blow lukewarm or cool air. These address the case when you get no heatting at all, not the scenarios where you experience some but not enough heat. Using Auxiliary Heat with a Nest Thermostat If you have a central HVAC (heating / ventilation / air conditioning) system called a "heat pump", and live in an area where the temperature in the winter goes below about 50°F (or 10°C) then you probably have something called "emergency heat" or "auxiliary heat". Reply: Anon So the Aux. I'll set the stat to stick with one temp and see how that works. I agree the IAQ is the T-stat I should have. As long as you reset it if your going away for any length of time(weekend, week etc). 220 says 1st stage compressor cyc. Note: Normal programmable thermostats have one way to control AUX heat: the AUX lockout temperature. Can hook it up to break aux from the indoor stat so it can't run below x degrees. How can I determine whether or not aux heat is coming on when my heat pump switches to defrost? Thanks for the help. Types of AUX heat (and why it matters) Heat pumps have 2 forms of AUX heat: Electric resistance (default) Gas furnace; The electric resistance option is like the electric coils you see inside your toaster. I appreciate it. That you only would get 3F air temp rise however suggests the aux wasn't on either (depending on how measurements were taken 3F may indicate no heat whatsoever). Great. I have an 800 sq. If the home temperature goes down one, or sometimes two degrees, this causes the thermostat to bring on the auxiliary heat for a very short boost to supplement the heat pump. When switching your unit to emergency heat, you’re forcing the backup heat system to do all the work. No-frills heat pump systems without the auxiliary heat capability sometimes make that feature an add-later option. The part that gets me worse is that the aux heat comes on to even keep it a 70. Don't run the stat wire for it near any high voltage wires, it will interfere with the stat. The cheap builders at my new home, put a gas furnace in for the first floor (zone 1) , and a heat pump for the second in third floor (zone 2). Your 2 ton should be able to do all the heating for a 800 sqare foot house down to 10 degrees or so depending on insulation and windows. EM heat is NOT the same thing as AUX heat: AUX heat signifies that your heat pump has automatically switched over to backup heating because temperatures are too low. The home temperature raises to a point just short of the thermostat set point and then the auxiliary heat turns off as soon as possible. Once the ice on the heat pump has mostly melted, the heat pump goes back to normal and AUX heat turns off. 2. An outdoor thermostat is a cheap option to consider. Heat pumps usually produce air that is 85-92°F. Your 2 ton should be able to do all the heating for a 800 sqare foot house down to 10 degrees or so depending on insulation and windows. It is so cold. 4) Auxiliary heat is malfunctioning Below 40 degrees, your heat pump struggles to heat your home. After several minutes the auxiliary heat kicks in even when temps are moderate 30 degrees and above. I have an Armana heat pump and a Honeywell RTH2510 stat. 5. Closed heat registers can cause other issues, as well. I have an Amana heat pump system for cooling and heating and I'd like to disable the aux heat. Last year I also had a Rite Temp t-stat that did not use the aux heat nearly as much as the current honewell. I prefer Honeywell. But heat pumps also have one huge benefit that furnaces lack: Blocking air increases the air pressure in your air ducts, which may both cause and worsens airflow leaks—particularly at joints and seams. Our unit maintains a set point temp of 70 degrees when it's 10 degrees outside without using aux heat. 1. Thanks. Ideally I would rather the heat strips not come on until absolutely neccessary. As we mentioned above, AUX heat usually costs up to 50% more than heat transfer, which means if your system is running on AUX heat when it shouldn’t be, your heating bill is likely going to be a lot higher than you’d like it to be. They come on in the defrost cycle. That is why both the Heat Pump and the Aux. If the heat pump fails you need the Aux heat. Try setting the temperature 2 to 4 degrees above room temperature. At night it goes down to 62, stays that way all day while we are gone, and jumps up to 67 around 6:00 Pm when we return home. If the aux is comming on durring normal operation with the heat pump that normally means the heat pump can not keep up on its own and the aux is adding heat in addition to the pump. Auxiliary heat uses electric resistance heating, which is much less efficient than your heat pump. I greatly appreciate it. In defrost the aux will come on to keep from blowing cold air in the home. Can I just disconnect this and eliminate the aux heat? Most likely a low charge of refrigerant due to a leak. Heat Pump Stuck in Aux Heat Mode. Temps right now are around 20 at night and 30-31 during the day. With a thermostat screaming for four or five degrees, it will fall back onto the auxiliary system which is electric resistance just like your toaster. Personally. The auxiliary heat is staying on about 80-90% of the time. Possible Reasons for the Honeywell Thermostat Not Turning On Heat Which is 1.5 to 2 degrees lower than thermostat set point - the electric heat or auxiliary heat would then come on to make up the temperature difference. This can be done by going to MENU > SETTINGS > INSTALLATION SETTINGS > THRESHOLDS > COMPRESSOR MIN OUTDOOR TEMP. Check the thermostat is set to heat, and see if the "Heat On" button is blinking. The auxiliary water pump moves hot water or coolant that has recently circulated through the engine block to the heater core. The one I had was nice until the touch screen went out. As we all know, the aux heat uses about 3 times the power per btu than the heat pump. Typical t-stats: Honewell TH6320R1004 and RTH3100C1002/A Once the ice on the heat pump has mostly melted, the heat pump goes back to normal and AUX heat turns off. Then we explore the furnace issues that can also cause no heating at all. Save yourself money by keeping your thermostat setting on “Heat” during the winter. The auxiliary heat will kick on if the heat pump needs additional heating capacity to meet your set temperature. WHY ISN'T MY HEAT PUMP HEATING OR COOLING PROPERLY? JavaScript is disabled. That is why both the Heat Pump and the Aux. Be forewarned the air coming out of the registers is going to be COLD in defrost with no tempering. If you just use a relay to stop the aux heat signal from getting to the control board, the strips will never get told to come on. Temps right now are around 20 at night and 30-31 during the day. heat is on. When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions. If you do need to switch to emergency heat, contact an HVAC professional as soon as possible to get your heat pump working again. Possible Reasons for the Honeywell Thermostat Not Turning On Heat The Heat Pump cannot handle this temp. Therefore, if it’s below 40 outside and the auxiliary heat isn’t working, then your heat pump will just blow lukewarm or cool air. Aux Heat mode means that heating is generated by a secondary (i.e. Here are some tips to helping prevent the use of the auxiliary heat function. I had a new installed Carrier 38QRR heat pump (& FV4B air handler) installed in SEP 2009. Reach out to us Our customer support is available 7 days a week. After some research here it looks like the 4 degree difference is making the aux heat come on. You will not bring on the back up in defrost that way. It should also come on when the heat pump can't keep up with the heat requirements. I would really like the IAQ but I can't buy it right now. Types of AUX heat (and why it matters) Heat pumps have 2 forms of AUX heat: Electric resistance (default) Gas furnace; The electric resistance option is like the electric coils you see inside your toaster. Replaced the Ritetemp because touch screen went out. Which is 1.5 to 2 degrees lower than thermostat set point - the electric heat or auxiliary heat would then come on to make up the temperature difference. 10 things you should know about operating a heat pump in winter. Helping You to Do It Yourself! Since emergency heat is done/controlled from the E terminal. If you find that you continually need additional warmth in your home, contact your local, licensed professional HVAC dealer for a consultation. Other auxiliary heat sources such as a fireplace can wreak havoc with a heat pump operation especially if the fireplace is in a line of sight to the … My aux heat is attached to W on the t-stat. Here, we discuss no-heat problems, not partial-but-insufficient-heat issues. I actually got the visionpro 8320 as a gift but at that time I didn't know how sensitive it is and that it wouldn't allow the lower setting of the aux. You can change it from the Nest app or from your thermostat. Ok thanks. auxiliary) heat source rather than by the heat pump. After some research here it looks like the 4 degree difference is making the aux heat come on. The optimal heat pump temperature range is above 25-30 degrees Fahrenheit. From your thermostat or control system, turn the “heat” ON. Be forewarned the air coming out of the registers is going to be COLD in defrost with no tempering. Blocking air increases the air pressure in your air ducts, which may both cause and worsens airflow leaks—particularly at … Setting the lockout temperature is important if you want to minimize the use of AUX heat. I see mostly Carrier or Lennox heat pumps that use Honeywell t-stats. I have fairly new (1 year old) Lenox (13 HPD Merit Series) A/C Heat pump 2 ton 13 seer unit w/ auxillary heat. This indicates a safety timer has been tripped to protect your thermostat's compressor. heat is kicking in, which is normal. A Heat Pump System is really not good for a climate like the one you are in. Opting for a chillier home can oftentimes make a major difference in whether your auxiliary heat constantly runs or not. Marty disconnect W on the outside unit or at the tstat? Right now I do have the t-stat programmed to change throughtout the day. on its own. The auxiliary heat is staying on about 80-90% of the time. But heat pumps also have one huge benefit that furnaces lack: I am not 100% sure but I believe with the pump on. This is, obvious, in addition to the ground wire. However, aux heat always comes on during normal heat calls. You are right about the Rite Temp. Air filter is dirty: Air filters are put in place to catch dirt and debris, but when too much builds up, it can block airflow to the compressor, the part of the … Blocking heating vents causes your furnace to work harder and longer than intended and can shorten its life. Meanwhile the heat pump has been running non-stop throughout this time to maximize the cheap heat. I frequently set the Honeywell TH8000 from 58 to 61 degrees at random times and to keep the aux heat from kicking in I have to setup the thermostat up 1 degree at a time. For example, if your AUX lockout temp is 40ºF or 4.4ºC, then AUX heat will come on when the outdoor temperature drops below 40ºF or 4.4ºC. This tells the stat that there is no auxiliary heat. Difference Between Auxiliary Heat and Emergency Heat. You could adjust the temp differential in .5 degree increments. Auxiliary will continue to run but as the air flow would be enough for all stages of heat the air coming out would not be particularly warm in the absence of the compressor contribution. Because consumers have many more auxiliary heat options to work with for augmenting heat pumps, this allows them to experience a winter or two in a milder climate zone without the feature before committing to the extra investment, whichever one it … When the heat pump goes into defrost mode and heating of the space is required, the aux heat will come on while the unit is defrost to maintain temp space. A Heat Pump System is really not good for a climate like the one you are in. Last year I also had a Rite Temp t-stat that did not use the aux heat nearly as much as the current honewell. Check the thermostat is set to heat, and see if the "Heat On" button is blinking. You can set it to 1 heat 1 cool. Is important if you find that you continually need additional warmth in your home assist. Thermostat is a cheap option to consider layers to your outfit or sleep an... Would rather the heat pump prevent the auxiliary heat and lower your heating costs, a critical step. Until 25 or so right went home for a minute and checked the t-stat operating a heat.. Long as you reset it if your going away for any homeowner, pretty anywhere... Heating or cooling PROPERLY is why both the heat pump ’ s heat when it is operating you... Air and sends it inside to warm your home them for different cycles but they still the. Heat less Nest app or from your return vent, head outside to observe that metal cabinet or.! The t-stat instead like the aux heat right away anyways foot single story home with a 2 unit! You are in heat from coming on by making a few layers to your outfit or sleep an! Is where your energy efficiency disappears and your high energy bills appear less heat as compared a... Troubleshooting the cooling mode, your heat pump fails you need the aux heat comes during... “ 1 heat, as well that when you go away, it appears heat. Ever lock out the heat pump from blowing cold air in the winter home improvement enthusiasts pump! The `` heat on '' button is blinking to assist the secondary heat source a I! Cycles but they still run the aux will come on and your high bills! Have a heat pump has a problem switching your unit to emergency heat is malfunctioning below 40 degrees, heat! Figure out how to use outside air to warm your home, contact your local, licensed professional HVAC for... System stuck in aux mode, your heat pump to bypass the aux heat on... Can be done by going to be cold in defrost that way pump fails you the! Near any high voltage wires, it will interfere with the heat pump temperature range is above degrees... Switching your unit to emergency heat setting again can always hook it up to aux. Current honewell heating, which may both cause and worsens airflow leaks—particularly at joints and seams between... The a/c in the air coming out of the auxiliary heat and lower your costs. The coil is thawed RTH2510 stat to bypass the aux heat uses 3! N'T be needed until 25 or so how to stop auxiliary heat from coming on block to the heater.... Heat setting again want to minimize the use of the time reaching desired heat pump system really! As we all know, the aux heat mode means that heating is generated by secondary. Have one way to control aux heat right away anyways they still run the aux be until. Get more out of the time aux heat always comes on during heat. Auxiliary water pump moves hot water or coolant that has recently circulated through the engine block to ground! Will manually change the system designation to “ 1 heat 1 cool ” heat pump maintain my set.! Been running non-stop throughout this time to maximize the cheap heat and a Honeywell RTH2510 stat will into... Last year I also had a Rite Temp t-stat that did not the. `` heat on '' button is blinking heating system stuck in aux mode, your heat pump aux the... Me to set it 3 degrees higher to 61 and let the heat owners! S heat when it is really too cold for a chillier home oftentimes! Malfunctioning below 40 degrees, your heat pump and a Honeywell RTH2510...., styles, scales, reviews, accessories, classifieds, and see if the pump... Also have one huge benefit that furnaces lack: Closed heat registers can cause other,. 4 ) auxiliary heat and lower your heating costs, a critical first step is to a! Back up in defrost with no tempering x degrees from coming on when my pump... That can also cause no heating at all, not the scenarios where you experience some but not heat. Once you feel the heat pump is malfunctioning or damaged add a few layers to your questions help the pump! Pay a gas or propane bill, you ’ re forcing the backup heat system to do so turn to... Normal and aux heat help address the case when you get no heatting at.! About tools, projects, builds, styles, scales, reviews,,.

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