What does a condenser fan relay do?
The condenser fan relay is the electronic relay that controls the power to the AC condenser cooling fan. When the relay is activated the AC condenser fan is switched on so that it can keep the AC condenser cool.
Does the car condenser fan run all the time?
Maybe the corrosion is stopping the plates moving freely and making contact, so although it has power applied to it the compressor is not being driven, thus the heat exchanger radiator fan will keep running for as long as the aircon is switched on, but clutch power will remain on because no cooling is taking place.
Is the fan supposed to be on when AC is on?
Keeping your fan on AUTO is the most energy-efficient option. The fan only runs when the system is on and not continuously. If your fan runs continuously, moisture does not have a chance to drip outside. It blows back into your home and your AC works hard to remove extra moisture from the air.
Does radiator fan always run with AC on?
Both radiator fans should always run when the AC compressor is engaged. Both radiator fans should always run when the coolant temperature sensor in the bottom tank of the radiator reaches about 212*F.
Is the radiator fan and AC fan the same?
The radiator fan is on a thermal control and turns on when the temperature reaches a set point, it has nothing to do with the AC at all. If your car is at running temperature and the AC fan is not coming on (assuming it is not -20 degrees outside) then there are likely one of a few causes.
When should the cooling fan come on?
To check the temperature at which the fan comes on, turn the A/C off and keep the engine running until it reaches normal operating temperature. Most fans should come on when the coolant reaches about 200 to 230 degrees. If the fan does not come on, something in the control circuit is defective.
Does a car thermostat control the fan?
The thermostat in the cooling system controls many of the electric fans. When the temperature in the engine reaches a certain preset temperature, the fan will begin cooling the engine. When the temperature dips below that preset temperature, the fan will turn off.