radiator fan not working when ac is off

Why does my fan come on when I start my car. Let it cool down first.

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It could be low on refrigerant or a bad relay a sensor an ambient temperature switch or the AC pressure transducer is bad.

. Temperature gauge did not move from 160. Engine overheats with AC on. Connect one lead to the power circuit and one lead to the power terminal.

I noticed my radiator fans stayed on during my 20min drive to work the ac was not on. One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you detect zero then your relays power pins have stopped working and you need to replace the relay.

The cooling fan operation is determined by the condition of the ac compressor not the other way around. Your cooling fan comes on when the. My cooling fan is not working properly while AC running and AC is not cool.

Pulling fuse 16 inside the car cuts power to the Module. In other words if the compressor runs the fan runs. So i started it back on for 20 sec.

When Both AC Fan And Compressor Are Not Working. If I start the car the AC radiator fans do not work. Had the AC system checked.

The inoperative cooling fans are causing the cooling system heat to rise. The car is over heating when the AC is turned off and the cooling fans do not seem to come on. Engine runs correct temp while air flows through radiator at highway speed or when AC is turned on thus fan is on.

When the AC is on the primary cooling fan kicks on and the secondary cooling fan comes on at a temp of approx 210 as read from the dash board. Reasons Why Your Radiator Fan Isnt Coming On. This being said it works on the principal as 1 said The coolant has to warm to a point that the switch can open to be able to.

Cooling fans not coming on when AC is turned on. If you do have low coolant dont fill it up until the engine has cooled off. It may seem that you are doomed when both AC fan and.

You really need to have the fan replaced or at least have a diagnostic check to see what is causing the fan to stop working. Replaced the temperature sending unit. If so where are they located.

Replacing the relay could fix your radiator fan from having stopped working. If there is no sound to indicate that the compressor and fan are working it points towards a break in the power supply or a faulty compressor contactor. Yes a broken radiator fan can cause the air conditiong to stop working.

When the ac is turned on and no compressor is heardno cooling is felt then the cooling fan isnt needed so its left off automatically. If the compressor is working but not the fan it is indicative of either motor or capacitor failure. Fans work when 12 volts jumped straight to them.

And as you noted there is a tie-in with the AC system that should at least bring the fans to low speed even if the water temp is low. Replaced the Fan Controller Relay. The AC system depends upon being able to dissipate heat into the engine coolant.

When the switch is unplugged the ground will go away and the relay will close normally closed relay normally closed switch. Electric Radiator fans do not come on when engine is hot nor after turning off will only come on when AC is turned on. Turned it off and the fans turned off.

Adding coolant to a radiator dry enough not to trigger the engine temp sensor can cause problems from drastic temperature change. Like any other clutch a fan clutch will wear out over time. If you notice that your engine is running at higher temperatures than normal.

The module receives inputs from sensors and switches and turns the fans on accordingly. Both cases the fans shut off. Thats why your AC is not cool.

A fault with that sensor or wiring could. Fan relay or AC relay. Like any other clutch a fan clutch will wear out over time.

Your Edges radiator fan will not kick on. If overheating is encountered when the AC is Off may mean that the temperature sensor that send control signal for the radiator fan motor may possibly be faulty. Your Accents radiator fan will not kick on.

Let it cool down first. This is a on off problem. If you do have low coolant dont fill it up until the engine has cooled off.

If the sensor isnt working your fan wont come on because it wont know that the temperature is hot enough to require activation which can frequently lead to overheating. Radiator Cooling Fans Not Working 2004 XLE. Up to 8 cash back Usually a faulty cooling fan relay will produce a few symptoms that can alert the driver that service may be required.

If the compressor doesnt run the fan doesnt run. After i parked and turned the truck of the fans still stayed on. Depending on which air conditioner system you have there are different sensors that check the pressure in the system.

Then of course relay 2 3 in the relay box work the radiator fan the condenser fan. 2007 Silverado LT 48L new body style. Relays in box on passenger fender well but description and small writing worn away.

Even with the AC off the cooling fans should cycle on and off when the coolant temperature reaches around 205-210 degrees F. The temperature sensor determines when the radiator fan comes on by reading the cooling system temperature. Afraid to drive it.

Radiator Cooling Fans Not Working. But if I try it a couple of times BOTH the AC Radiator Fans start working. Or the control logic that dictate which switch will control the radiator fan motor when engine temperature reach a preset level with or witho.

Adding coolant to a radiator dry enough not to trigger the engine temp sensor can cause problems from drastic temperature change.

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