- 1). Set the air conditioning thermostat to cool. Sometimes the switch can be bumped while traveling or people are moving through the unit.
- 2). Turn on the power. If the power running to the air conditioner is not on, you will not get cold air. Also check that the circuits are not blown.
- 3). Check that the furnace blower motor is on and running.
- 4). Change the air filter. A dirty air filter can cause the unit to be clogged and not run.
- 5). Move furniture so the air grilles are not blocked. The air registers must be open as well.
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