Possible Reasons for the Honeywell Thermostat Not Turning On Heat Our unit has been running non stop the last 10 days and … In defrost the aux will come on to keep from blowing cold air in the home. 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 greatly appreciate it. 3. heat is on. 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. Although they are one in the same heat strips in the air handler. So it relies on an auxiliary (AUX) heat coil (like the ones you see in a toaster) or a furnace to heat your home. Typical t-stats: Honewell TH6320R1004 and RTH3100C1002/A No aux heat. Once you feel the heat coming from your return vent, head outside to observe that metal cabinet. Marty disconnect W on the outside unit or at the tstat? From your thermostat or control system, turn the “heat” ON. I think I can get more out of my heat pump than that. 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." Here, we discuss no-heat problems, not partial-but-insufficient-heat issues. It is so cold. Awesome info. There’s 2 ways to prevent the auxiliary heat from running on that stat. Personally. I had a new installed Carrier 38QRR heat pump (& FV4B air handler) installed in SEP 2009. I'm trying to figure out how to use the aux heat less. Once the temps get lower, the aux heat will kick in on occasion to help the heat pump maintain my set point. We are using the Carrier programmable thermostat (66 at night, 70 in morning, 66 when we leave, 70 in the evening). The bill is much higher than last year. The aux (or emergency heat) should come on when the outside unit needs defrosting. 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. I am not 100% sure but I believe with the pump on. This is set at a default 35F (1.7C), so the heatpump will not be used when the weather outside is below 35 degrees … So, your heat pump switches to “AUX heat” when it’s in heating mode—and you’re wondering if it’s normal. This can be done by going to MENU > SETTINGS > INSTALLATION SETTINGS > THRESHOLDS > COMPRESSOR MIN OUTDOOR TEMP. Replaced the Ritetemp because touch screen went out. You will not bring on the back up in defrost that way. If so what would be the best way to bypass the aux. Elec. Setting the lockout temperature is important if you want to minimize the use of AUX heat. If I had known, I would have asked for gas on the second and third floor for sure!! No you don't want to remove it from the thermostat. I agree the IAQ is the T-stat I should have. Don't run the stat wire for it near any high voltage wires, it will interfere with the stat. After some research here it looks like the 4 degree difference is making the aux heat come on. For a better experience, please enable JavaScript in your browser before proceeding. The part that gets me worse is that the aux heat comes on to even keep it a 70. The bill is much higher than last year. Helping You to Do It Yourself! Is there a wire I can remove at the T-stat instead like the Aux wire or ?. AUX heat turns on to keep you warm. I prefer Honeywell. heat? Disconnect W on the heat pump. Right now I do have the t-stat programmed to change throughtout the day. When you install the sensor. These address the case when you get no heatting at all, not the scenarios where you experience some but not enough heat. The auxiliary heat will kick on if the heat pump needs additional heating capacity to meet your set temperature. Your auxiliary heat, as just described, supplements your heat pump’s heat when it needs it. 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. 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. I created this video with the YouTube Video Editor (http://www.youtube.com/editor) Reach out to us Our customer support is available 7 days a week. I'd like to just set it 3 degrees higher to 61 and let the heat pump raise the temp without the aux heat. on its own. Just for some background. So the Aux. Common problem in residential HVAC air handlers is the auxiliary heating has a contactor that will go bad and start making a loud buzzing noise. IMHO heat strips shouldn't be needed until 25 or so right? Since the aux heat seems to be working but the outside unit is not defrosting, it appears the heat pump has a problem. Check the thermostat is set to heat, and see if the "Heat On" button is blinking. Clean off your heat pump and clear away any debris that may be blocking the way. In aux mode, your heat pump will continue to use outside air to warm your home to assist the secondary heat source. In any case, always keep an eye on your auxiliary/strip heat status in the winter. It is really too cold for a heat pump. 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. Auxiliary Heat. I have an 800 sq. Be forewarned the air coming out of the registers is going to be COLD in defrost with no tempering. The heat pump pulls the heat from this cold outdoor air and sends it inside to warm your home. Defrost is basicly the same thing as running the a/c in the summer untill the coil is thawed. So 85-92°F feels cold to new heat pump owners. Our suggestion would … 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. heat? This will manually change the setting of your thermostat to a higher temperature than the outdoors. Closed heat registers can cause other issues, as well. 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 … But heat pumps also have one huge benefit that furnaces lack: This tells the stat that there is no auxiliary heat. Thermostat is working correctly, wondering what component in the compressor unit is controlling the activation of the auxiliary 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. Therefore, a heating system stuck in AUX heat will run up an energy bill. 3. JMO. 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". If the temps don't get below 32 is there any reason I can't just run off of the heat pump? Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! Replaced the Ritetemp because touch screen went out. Your first stage heat is your heat pump. 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. 1. As we all know, the aux heat uses about 3 times the power per btu than the heat pump. It is so cold. Heat pumps usually produce air that is 85-92°F. 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). heat I would compare usage to last year. That is why both the Heat Pump and the Aux. If the heat pump fails you need the Aux heat. Great. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. You can change it from the Nest app or from your thermostat. 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. Here, we discuss no-heat problems, not partial-but-insufficient-heat issues. You will not bring on the back up in defrost that way. 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. This is where your energy efficiency disappears and your high energy bills appear. 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. Get the installation instructions and change the system designation to “1 heat, 1 cool” heat pump. I'd also connect it to the W3 as I said before. Replaced the Ritetemp because touch screen went out. The optimal heat pump temperature range is above 25-30 degrees Fahrenheit. Ideally I would rather the heat strips not come on until absolutely neccessary. If the heat pump fails you need the Aux heat. WHY ISN'T MY HEAT PUMP HEATING OR COOLING PROPERLY? My aux heat is attached to W on the t-stat. heat is kicking in, which is normal. If the heat pump cant keep up the aux heat will kick in to aid in reaching desired 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. Check the thermostat is set to heat, and see if the "Heat On" button is blinking. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. Then we explore the furnace issues that can also cause no heating at all. 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. 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). Easiest thing would be to just buy the outdoor sensor and adjust from that,others can probably give you more advice on the programming. If it gets colder outside than the set lockout temperature, your heat pump will use AUX heat. The auxiliary heat is staying on about 80-90% of the time. 1. I don't like them. Limiting the use of auxiliary heat can be an effective means of saving money. Setting the lockout temperature is important if you want to minimize the use of AUX heat. You can change it from the Nest app or from your thermostat. Electricity use is way to high this way. EM heat is an option on your thermostat that you can manually turn on to activate backup heating. For a better experience, please enable JavaScript in your browser before proceeding. Thanks. I've been having the same issue with my heat pump. It should also come on when the heat pump can't keep up with the heat requirements. Heat Pump Stuck in Aux Heat Mode. Meanwhile the heat pump has been running non-stop throughout this time to maximize the cheap heat. They come on in the defrost cycle. It is really too cold for a heat pump. Try setting the temperature 2 to 4 degrees above room temperature. I have an Amana heat pump system for cooling and heating and I'd like to disable the aux heat. 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. heat is kicking in, which is normal. JavaScript is disabled. rate : is that for the compressor when it is on air conditioning or does that include heat also for heat pump? This is, obvious, in addition to the ground wire. 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 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. I would really like the IAQ but I can't buy it right now. I see mostly Carrier or Lennox heat pumps that use Honeywell t-stats. If the heat pump cant keep up the aux heat will kick in to aid in reaching desired heat pump. After some research here it looks like the 4 degree difference is making the aux heat come on. Temps right now are around 20 at night and 30-31 during the day. The Heat Pump cannot handle this temp. The part that gets me worse is that the aux heat comes on to even keep it a 70. The bill is much higher than last year. 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. The one I had was nice until the touch screen went out. 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 … I appreciate it. 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. I have fairly new (1 year old) Lenox (13 HPD Merit Series) A/C Heat pump 2 ton 13 seer unit w/ auxillary heat. heat is on. They can be set for different cycle rates. When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions. Heat pumps can be a great option for any homeowner, pretty much anywhere! Thanks. With 2 degrees set it always comes on. Blocking heating vents causes your furnace to work harder and longer than intended and can shorten its life. 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. I live in Southern TN and it doesn't get too cold. That is why both the Heat Pump and the Aux. After several minutes the auxiliary heat kicks in even when temps are moderate 30 degrees and above. Helping You to Do It Yourself! 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. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. The aux heat comes on too much and is jacking up my electric bill. You can set it to 1 heat 1 cool. 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. 220 says 1st stage compressor cyc. Since emergency heat is done/controlled from the E terminal. 2. Then we explore the furnace issues that can also cause no heating at all. 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. Here are some tips to helping prevent the use of the auxiliary heat function. 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. 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. 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 … When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions. The outdoor sensor will only allow me to set it to 40. 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. Aux Heat mode means that heating is generated by a secondary (i.e. JavaScript is disabled. If you do need to switch to emergency heat, contact an HVAC professional as soon as possible to get your heat pump working again. There is no reason to ever lock out the heat pump. 5. Note: Normal programmable thermostats have one way to control AUX heat: the AUX lockout temperature. Dead starting components (heat pump) While we're on the subject of heat pumps, let's just acknowledge that all kinds of components can go bad for any number of reasons. Make sure your thermostat is set to heat. 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. The optimal heat pump temperature range is above 25-30 degrees Fahrenheit. Can hook it up to break aux from the indoor stat so it can't run below x degrees. Once this stops blinking, your thermostat should be able to maintain its heat setting again. So that when you go away, it isn't bringing in the aux heat right away anyways. You shouldn’t ever use EM heat unless there’s truly an emergency—like your heat pump isn’t working— … Once the ice on the heat pump has mostly melted, the heat pump goes back to normal and AUX heat turns off. The auxiliary heat setting is more energy and cost-efficient than emergency heat. Blocking air increases the air pressure in your air ducts, which may both cause and worsens airflow leaks—particularly at … Blocking heating vents causes your furnace to work harder and longer than intended and can shorten its life. Reply: Anon An outdoor thermostat is a cheap option to consider. Auxiliary heat uses electric resistance heating, which is much less efficient than your heat pump. The problem could be your thermostat settings. To limit auxiliary heat and lower your heating costs, a critical first step is to set a lower indoor temperature. 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. Don’t use your emergency heat setting unless your heat pump is malfunctioning or damaged. The auxiliary water pump moves hot water or coolant that has recently circulated through the engine block to the heater core. I have an Armana heat pump and a Honeywell RTH2510 stat. The Heat Pump cannot handle this temp. You are right about the Rite Temp. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. 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. with electric heat you should basicly run unrestricted. There's usually at least three wires that send signals coming from the thermostat - one for heat pump heat, one for heat pump cool, and one for the aux heat (strips). EM heat is an option on your thermostat that you can manually turn on to activate backup heating. heat. No-frills heat pump systems without the auxiliary heat capability sometimes make that feature an add-later option. Temps right now are around 20 at night and 30-31 during the day. 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 … 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. Sometimes thermostats will display “auxiliary heat” or “aux heat” on the wall display in your home when this occurs. Save yourself money by keeping your thermostat setting on “Heat” during the winter. auxiliary) heat source rather than by 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. Thanks for the help. Most likely a low charge of refrigerant due to a leak. rates have went up. After several minutes the auxiliary heat kicks in even when temps are moderate 30 degrees and above. Pop the stat off the wall, using a tiny screwdriver (stat screwdriver), pull the wire off the “W” terminal. Add a few layers to your outfit or sleep with an extra blanket to keep your furnace from working so hard. Once the ice on the heat pump has mostly melted, the heat pump goes back to normal and AUX heat turns off.

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