Question

On a split system heat pump, a "no heat / no cooling" service call, you turn the thermostat to the fan on / cool position and the indoor fan operates. This action verifies that __________.

1) The thermostat is functioning properly
2) The heat pump is functioning properly
3) The indoor fan is functioning properly
4) The cooling system is functioning properly

Answer 1

Turning the thermostat to the fan on / cool position and verifying that the indoor fan operates can indicate the proper functioning of the thermostat, heat pump, and indoor fan in a split system heat pump. It does not verify the functioning of the cooling system.

Step-by-step explanation:

To verify that a split system heat pump is functioning properly in a 'no heat / no cooling' service call, you can turn the thermostat to the fan on / cool position. If the indoor fan operates, it indicates that the thermostat, heat pump, and indoor fan are all functioning properly. However, it does not indicate if the cooling system is functioning properly.