This needs to be set below.
Central air condenser fan won t start.
Verify the switch on the thermostat is set to fan or cool and make sure the air conditioner is turned on.
If all the settings are correct but the fan doesn t start it could be an overheated or damaged fan motor.
Examine all wiring and ensure that the unit is plugged in.
If your condenser unit won t turn on at all you may have a faulty motor or the unit may not be receiving power.
To determine if the condenser motor is working use a multimeter to test the incoming voltage to the motor.
If the fan doesn t start up at all it could be something as simple as a setting on the thermostat.
In general this problem is caused either by a dirty condenser and fan or a clogged condenser.
If the capacitor is not bulging or leaking replace the condenser fan motor.
Make sure that the power is turned on and that the settings are calling for cooling.
The condenser unit won t turn on.
Once the thermostat sends the command for cooling your contactor kick starts the process of starting your compressor.
Fan has trouble starting.
If the condenser fan motor is receiving the correct voltage but the motor still won t run i.
Your contactor is the middleman between the thermostat and your compressor.
Condenser fan runs backwards condenser fan won t start condenser fan runs slowly condenser fan noises condenser fan wobbles condenser fan runs intermittently or short cycles condenser fan won t stop condenser fan runs backwards.
Nspect the capacitor to ensure that it is not at fault.
But if it s gone bad it can t execute the commands sent from your thermostat and your ac won t start.