QA

Question: What Does Aux Mean On A Thermostat

That’s exactly what the auxiliary heating setting does for your home’s heat pump system. 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. Aux heat will kick on when your heat pump cannot deliver enough warmth to heat your home.

Is it normal for AUX heat to come on?

It’s normal for AUX heat to turn on when your heat pump needs to heat the home quickly. If you’re feeling chilly in the morning, for example, the secondary heat system can help to warm you up. This system turns on automatically, so don’t be surprised if it comes on during the night.

Does auxiliary heat cost more?

This is because heat pumps must work extra hard to get your home up to its set temperature (and to maintain that temperature). This means your aux heat will run a lot more, costing you more money.

When should AUX heat be used?

What is Auxiliary Heat on a Thermostat? When the temperature inside your home drops about two or three degrees below the temperature the thermostat is set to, auxiliary heating kicks on to help warm your home more quickly.

How does AUX heat work?

Basically, auxiliary heat uses electric resistance heating to heat your home. Since electric resistance heating is much less efficient than your heat pump, you only want it to be on when necessary. Otherwise, your auxiliary heat is working when it shouldn’t be and driving up the cost of your heating bill.

Does AUX heat use more electricity?

Auxiliary heat uses electric resistance heating, which is much less efficient than your heat pump. Therefore, a heating system stuck in AUX heat will run up an energy bill. 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.

Why is my heat not shutting off?

One of the most common issues is the thermostat. The wiring, switches, or heating sensors can fail on your unit. A faulty check valve could be the cause of this type of heating system to fail. If your heating system will not shut down, then you need to call a professional technician for help.

How long can you run auxiliary heat?

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. If you change the threshold settings, you can configure the minimum on time and save on electricity or heating oil.

How long does auxiliary heat last?

Auxiliary heat only turns on when your home needs warmth fast. It should only remain on for as long as it takes your home to reach the temperature on your thermostat. What is this? This shouldn’t take much longer than 30 minutes.

How do you fix auxiliary heat?

The best way to troubleshoot auxiliary heat is by checking the supply and return air vents. If these are blocked, then this could lead to a lack of heating from your auxiliary unit. You should also check the filters in the furnace and clean them out if they’re dirty.

Why is my heat pump blowing cold air when the heat is on?

Your Heat Pump May Be In Defrost Mode As heat is released through the outdoor unit, it melts ice formations that would have been difficult or damaging to remove manually. Defrost mode is essentially the same as cooling mode, therefore it is likely your heat pump will blow cool air while in this mode.

Why is my heat blowing cold air?

A clogged filter is one of the leading reasons for a heater blowing cold air. But even if you swap the air filter with a brand new one, dirt and debris can still be found within the unit. This could eventually lead to overheating. If your furnace looks pretty dirty, call an HVAC provider for a professional clean.

What does AUX heat mean on Honeywell thermostat?

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.

Should heat pump and AUX heat run simultaneously?

Allow Heat Pump/Auxiliary Heat to Run Simultaneously: If you select Yes and there is a source of auxiliary heat, both auxiliary heat and heat pump will turn on. The heat pump will be energized for the first 30 minutes.

Will my heat pump automatically switch emergency heat?

The heat pump setting’s emergency heat will usually switch on and off automatically during brief periods when the outside air gets too cold. Your heating system will then use the secondary system with your normal heating. The system will bypass the main heat pump and be forced into auxiliary mode.

What temperature should I set my heat pump in the winter?

Ideal Winter Heat Pump Temperature Settings According to the Department of Energy, 68°F is the sweet spot that balances comfort and energy efficiency during the fall and winter months. When your home is occupied and when family members are awake, a heat pump setting of 68°F keeps the living areas reasonably warm.