How to stop auxiliary heat from coming on honeywell thermostat

How to stop auxiliary heat from coming on honeywell thermostat. One of the simplest ways is to stop the auxiliary heat from coming on the Honeywell thermostat but ensure that the temperature is not dropping fast. You can prevent the auxiliary heat by adding insulation and closing the door of the rooms that are not used in the home.

The aux heat appears on the Honeywell thermostat. It simply means that the heat pump of the thermostat requires help to reach the desired temperature and turns on when the temperature drops below 2 degrees or falls below the intended setting, and it automatically turns off when the temperature reaches the desired level.

Not turning on the Honeywell thermostat includes the faulty sensor or when your home is experiencing extreme temperature. For cleaning the Honeywell thermostat, use a soft paintbrush to remove the dust from the metal coil.

How to stop auxiliary heat from coming on honeywell thermostat

The heat pump cannot get enough hot air to warm your hose when the temperature drops. As a result, the aux heat turns off. When you manually activate the secondary heating system, the emergency heat comes on. the auxiliary heat keeps turning on when you turn on the system when the heat is not transferring from the air to the pump.

The indoor temperature should be 3 degrees cooler than the thermostat setting. The auxiliary heat turns on automatically when the outside temperate is 35 to 40 degrees. When it’s too chilly outside, the heat pump employs auxiliary heat strips.

If malfunctioning occurs with these heat strips, the heat pump will start blowing the cold air. Same as in the summer when the system needs the level of refrigerant. If the refrigerant level is low, the heat pump cannot transfer heat properly. The troubleshooting of the honey well thermostat involves the following:

  •  Disattach all of the wires that are attached to the thermostat.
  • Pull off the device from the wall.
  • Wait for at; least 5 minutes after removing the batteries.
  • Reconnect the wires of the Honeywell thermostat when the battery gets replaced.
  • Then turn on the system and wait for at least 5 minutes.

The best method for reducing auxiliary heat

It is impossible to shut off the auxiliary heat fully. It only turns on when your home requires fast warmth.

  • Add more insulation

insulation is the most important step in stopping the auxiliary heat from coming on the thermostat. The modern window helps it. These windows allow for trapping more heat into your home.

  • Allow the sun

Allow the sun to provide warmth to your home because it helps you to give heat to your home without depending on any auxiliary heat.

  • Shut off the doors

Yous should shut off the room doors that are not being used. This step will reduce the area the HVAC system has to give warmth. It lessens the likelihood that you will need to use supplemental heat.

  • Maintain the HVAC system

The HVAC system requires regular maintenance. You should clean the system after every 30 days. It makes the system more dependable by using.It will lessen the requirement of using au heating.

How to turn off the auxiliary heat

  •   Setting the thermostat’s temperature to 60 to 68 degrees is required to get the issue under control.
  •   Setting the thermostat temperature below 80 degrees is better to keep the Honeywell thermostat from switching to the auxiliary heat.
  •   The supplemental heat typically turns on when the temperature inside your house rises too high.
  •   Maintaining the system is crucial to preventing the need to turn on the supplemental heat frequently.
  •   You need to use more heat if your heat pump is on defrost mode.
  •    Should pay more attention to the Honeywell thermostat when and how often the auxiliary heat turns on.


Take a look at the insulation of the Honeywell thermostat. Then take off the Honeywell thermostat from our wall with the help of the small screwdriver and remove the wire from the W terminal. it is the sign to the thermostat that no auxiliary heat is not activating.

With the help of setting the temperature to 70 degrees on the Honeywell thermostat, you can avoid the auxiliary heat. The thermostat will not activate the auxiliary heat feature when the temperature is between 60 to 80 degrees. It is less costly to start the auxiliary heat than the activation of the emergency heat.

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