How to Change the Carrier Heat Pump Fan Speed


Changing the heat pump fan speed for your carrier unit will better allow heat to be dispersed slowly throughout your home, rather than in strong single spurts. This can help reduce the huge temperature swings in your home, and keep your home comfortable longer.

Things You'll Need

  • Carrier heat pump

How to Change the Carrier Heat Pump Fan Speed

  • Locate the main wall unit control panel for your HVAC unit.

  • Next, find the button for fan speed. Usually, these work on a 3-speed motor cycle scale of Low, Medium or High. You will want t a low or medium speed for heat, and a high speed for cool air.

  • If you have a variable speed furnace, you will need to locate your actual HVAC unit. Locate the switch on the back or side for summer or winter mode.

  • Manually switch your variable unit accordingly to your season. Summer will switch it to AC mode, Winter will switch it to heat mode.

  • Return to the wall unit inside and set your variable unit to the desired temperature you would like the house. In variable units, internal sensors will automatically adjust the fan blower speed to slow down or speed up based on the temperature in the home.

Tips & Warnings

  • Newer carrier heat pumps use the variable fan units. However, other models that work on a 3-4 speed motor are very common. Knowing which fan speeds work best for the level of heat or cool air you are trying to emit will help you get the best use out of your unit. Remember that cool air sinks and hot air rises--blasting hot air through the vents will waste energy and you will lose heat in your home faster.

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