Question about Whirlwind FH-778 Air Conditioner
What's going on -- My air conditioner (heat pump) Vents are blowing hot air and The unit outside my house is blowing cold air?
It sounds like the unit is stuck in the heat mode or the thermostat switch is still on heat. If the switch is in cool then you can go to the outside unit and locate the reversing valve. It may be stuck in the heat position. You can tap it with the handle of a screwdriver but only on the ends and very lightly because if you dent it the valve will be stuck for sure. If it shifts you will hear a loud hiss as the pressure equalizes. You could also try unplugging it from the circuit board. On some units it is energized in the cool mode and on others it is energized in the heat mode.
Posted on Jun 06, 2010
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Posted on Jan 02, 2017
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