Therefore, a heating system stuck in AUX heat will run up an energy bill. AUX heat refers to your heat pump’s “backup” electric resistance heating. AUX heat mode is normal … Auxiliary heat is when the secondary heat source turns on automatically. EM heat is an … It costs a little too much to switch it out, but once your heat pump … If you have an all … If so, that’s normal. When outdoor temperatures reach freezing temperatures, the outdoor coils can begin to freeze over with ice. In Arizona, the temperature doesn’t usually drop that much, but cold weather can still show up unexpectedly. 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. We had a new Trane XR15 heat pump installed three months ago. 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. We can help you determine the source of your problem and guide you toward the most energy-efficient, low-cost solution. A skilled tech will be able to determine what the issue is and fix it before you continue to spend money on high energy bills. Most Common Reasons to Replace a Heater or Furnace, Tips for Preparing Your Air Conditioning Unit for the Fall Season. Signs that your heat pump is in defrost mode include: If you are not experiencing one of the 3 situations listed above but your heat pump is running on AUX heat, your heat pump likely needs a professional repair. The inside of the house was already 64 degrees. The emergency heat, or EM heat, setting on your thermostat shows you when this auxiliary system is in use, and it can also be activated manually if your heat pump malfunctions or stops … Prolonged use of aux heat can cause your utility bill to be much higher than it needs to be. Many homeowners get confused when the temperatures start to drop, and they see either “aux” or “em” heat on their thermostat. First off, AUX heat refers to your heat pump’s auxiliary (backup) heat source. If it’s an unusually cold Arizona day, it’s normal to see AUX heat on your thermostat. In aux mode, your heat pump will continue to use outside air to warm your home to assist the secondary heat source. For example, if your AUX lockout temp is 40ºF or 4.4ºC, then AUX heat … I've tried two different thermostats, the present one being a Honeywell RTHL3550. Our suggestion would be to reach out to a professional as soon as possible. In the area where you're using your heat pump, turn your old thermostat 10°F lower than you used to. Why Is My Heat Pump Auxiliary Heat Always On? It may be more effective, but it comes with a specific cost that you might not be anticipating. Usually, once outdoor temperatures fall below 35°, a heat pump will struggle to keep your home warm and will automatically switch to AUX heat. Pssttt...if you live in Phoenix or surrounding areas, we can help you determine what’s wrong with your heat pump and fix it. It does seem to be kicking in frequently instead of normal heat and got an alert that my "Aux Heat … The important thing to remember is that “AUX” heat is fast and dependable but it’s also more expensive than heat transfer heating. Aux heat should only kick on when the heat pump can’t produce enough heat to warm your home on its own. *=Required Field. For instance the other day….. I have installed a ritetemp 6036 thermostat,replace the Weathertron (trane heat pump with aux. If you’re having problems with your heat pump or furnace, contact Precision Heating & Air. It’s possible that, if the weather is especially cold, your heat pump could run near-constantly … Auxiliary heat refers to your heat pump’s backup electric resistance heating. All Rights Reserved. For example, let’s say that you wake up to a cold home (62° F) and immediately raise the thermostat to 68°. Your heat pump absorbs heat from the outdoor air via refrigerant lines and carries that heat inside where it’s used to heat your home’s air. How to minimize the use of auxiliary heat with a heat-pump on your ecobee thermostat Question: We have a heat pump and recently installed an ecobee thermostat. Give us a call at 770-445-0870 or schedule service online. This 3-degree “trigger point” is programmed into the thermostat by the manufacturer. Set the heat pump balance to Off (Settings > Heat Pump Balance > Off) then go to Settings > Equipment > Auxiliary heat lockout and set the temperature to something like 40 degrees. 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. Here’s how it works. As we mentioned above, most heat pump systems are designed to switch to AUX heat when the indoor temperature is 3 degrees colder than the thermostat setting. Below 40 degrees, your heat pump struggles to heat your home. When that happens, the heat pump will reverse the flow of refrigerant so that hot refrigerant is sent to the outdoor unit (to melt the ice). If your heat pump is constantly running, there are likely three main causes: Unusually cold weather: Heat pumps are designed to work much more gradually than a furnace. No aux heat. Privacy Policy. This heat setting should only kick on when the heat pump can’t produce enough heat to warm your home or if your heat pump goes into defrost mode. Check out the 2019 incentive program from Atlanta Gas Light to see how much you can save. The Honeywell VisionPro TH8320 and the TH8321 (with the optional outdoor sensor) allow you to lockout Aux heat … Aux heat should only kick on when the heat pump can’t produce enough heat to warm your home on its own. Note: In some cases, your heat pump’s AUX heat could be a gas furnace, but since Phoenix typically has mild winters, some AZ homeowners will have electric resistance as their AUX heat. Heat transfer is the most efficient (and cheapest) type of heating, and it’s your heat pump’s main solution for heating your home. I have a Goodman air handler unit (Mod # AWUF361016BA) and heat pump. And, because a heat pump stops heating your home during this process, some models will automatically switch to AUX mode until the defrost cycle is over. You might notice your heat pump runs constantly in cold weather. When the heat pump can no longer pull enough heat from outside to meet the heating load of the house, the electric resistance heat comes on and supplements the heat pump. Before you call for service, make sure the heat pump isn’t accidentally set to a/c mode, and that the set temperature is correctly set at the thermostat. Both a heat pump and an air conditioner are designed … © 2021 Precision Heating & Air. For some homeowners, the “AUX” heating source will be electrical resistance heating, which are essentially large wire heating elements that are heated by electricity. Generally, heat pumps work by transferring outside heat into your home via a process called heat transfer. Unfortunately, using the auxiliary heat is significantly more expensive than using your heat pump. Since heat pumps can only keep up with a relatively small amount of heating in a short amount of time, they are paired with AUX heat to help heat your home in a hurry.

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