Table of Contents
- 1 Why does my heater switch to AUX heat?
- 2 Why does my home thermostat say aux heat?
- 3 How often should auxiliary heat come on?
- 4 At what temperature does a heat pump switch to emergency heat?
- 5 How long can you run AUX heat?
- 6 What does “aux heat” mean on the thermostat?
- 7 Why is my AC stuck in aux Heat Mode non-stop?
- 8 When does the auxiliary heat turn on in my home?
Why does my heater switch to AUX heat?
Typically, your heat pump will energize the auxiliary heat strip inside your secondary heating source to help reach its set temperature more quickly. Basically, if your heat pump is struggling to maintain its goal temperature, your aux heat will turn on and give your heat pump a boost.
Why does my home thermostat say aux heat?
When you see the “aux” heat indicator on your thermostat it means your heat pump needed some help reaching the desired temperature. It turns on automatically when the temperature falls about two degrees below the desired setting and turns off automatically when the target temperature is reached.
Why is my auxiliary heat always on?
Auxiliary heat is when the secondary heat source turns on automatically. This means, when the temperatures start to drop and your heat pump cannot produce enough hot air to warm your home the aux heat will turn on. Emergency heat is when you turn on a secondary heat source manually.
How often should auxiliary heat come on?
When should my auxiliary heat come on? When outside temperatures drop below 40 degrees. While undergoing the defrost cycle. When there is a 3 degree difference or more in the current temperature in your home and the thermostat setting.
At what temperature does a heat pump switch to emergency heat?
The Emergency Heat or Auxiliary Heat setting is the second stage of your heating system that is used when the temperature is too low for the heat pump to be able to remove heat from outside, typically below 35 degrees Fahrenheit.
Why is my auxiliary heat staying on?
More often than not, the aux heat is coming on because the temperature in the home is set too high. You are asking your HVAC system to work too hard to maintain a comfortable temperature. Setting the thermostat for somewhere between 62-68 degrees is all you should need to do to get the problem under control.
How long can you run AUX heat?
If you are using a rather expensive Aux heat system, it is better to set a minimum on time. By default, this time is set to five minutes. This means, if your aux heat is called upon and canceled immediately, it will still run for five minutes before shutting down.
What does “aux heat” mean on the thermostat?
If it’s an unusually cold day in San Marcos, don’t be surprised to see “AUX heat” on the thermostat. When the temperature inside your home is more than 2–4°F above your thermostat’s set temperature, the auxiliary heat will turn on. (The actual temperature differential will depend on your heat pump model.)
When should my heat pump run in aux Heat Mode?
Auxiliary heat kicks on when your heat pump can’t produce enough heat to warm your home by itself. AUX heat mode is normal when: Your thermostat is calling for a high temperature increase (2–4°F) Before we get more into when your heat pump should run in AUX heat mode, let’s go over how a heat pump heats your home.
Why is my AC stuck in aux Heat Mode non-stop?
That’s a problem. It could mean one of your thermostats may be stuck or faulty, which is causing your system to be stuck in auxiliary heat mode non-stop. To avoid a large energy bill (because aux heat is more expensive than heat pump heating), you’ll want an HVAC professional to check your thermostat and fix it ASAP.
When does the auxiliary heat turn on in my home?
When the temperature inside your home is more than 2–4°F above your thermostat’s set temperature, the auxiliary heat will turn on. (The actual temperature differential will depend on your heat pump model.)