radiator fan not working when ac is off
Start and idle the engine and backprobe the connector terminals with the test light. If I start the car the AC radiator fans do not work.
Radiator Fan Is Not Working 7 Causes How To Fix
The car is over heating when the AC is turned off and the cooling fans do not seem to come on.
. Both cases the fans shut off. Help Radiator Fan Not Working Problem Solved by ZIMDRILL m. Temperature gauge did not move from 160.
In other words if the compressor runs the fan runs. Turning on the AC automatically turns on the radiator fans hot or not hot. If low it works less efficiently and does not cool well.
One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If the compressor is working but not the fan it is indicative of either motor or capacitor failure. This is what is happening cooling fans will not come on except when the AC is turned on and they will stop working when the AC is turned off otherwise the car will over heat.
This guide will go over the possible things that can cause the fan to fail. 1019pm On Sep 18 2013. Depending on the ambient temperature in your location this should be long enough for the coolant temp to get hot and the thermostat to open up.
No only comes on when the coolant is too hot. It may seem that you are doomed when both AC fan and. Certain amount of refrigerant to cool properly.
A fault with that sensor or wiring could. Pulling fuse 16 inside the car cuts power to the Module. Ignition OFF disconnect the remaining relays.
The temperature sensor determines when the radiator fan comes on by reading the cooling system temperature. One of them should turn on the. 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.
The fan is operated by a motor and there are a few things that can go wrong with the motor which can cause the fan to work sometimes and not other times or it can completely stop working. Start your vehicle and let it idle for 10-15 minutes. Ignition OFF disconnect the seriesparallel relay which is Cool SERPAR Relay 29.
After i parked and turned the truck of the fans still stayed on. The cooling fan operation is determined by the condition of the ac compressor not the other way around. If the fan is activated test the left fan ground circuit for a short to ground.
The fan should be OFF. If the beltviscous clutch fan is moving enough air assuming your car has auto transmission electric fan wont run. If you observe the AC condenser fan not spinning on your outdoor air.
I noticed my radiator fans stayed on during my 20min drive to work the ac was not on. It could be any of a number of things. Turned it off and the fans turned off.
If the compressor doesnt run the fan doesnt run. The module receives inputs from sensors and switches and turns the fans on accordingly. Your F150s radiator fan will not kick on.
For years now in stop and go traffic the AC would get warm within a few seconds of stopping and wouldnt really start to cool off until Id get up to about 30mph for a few seconds and wouldnt get ice cold unless I was going 50mph. See what others are asking about their BMW 535i xDrive. Driving your car is a good way to get the coolant temp hot.
Watch the vehicle and see if the cooling fan comes on. If you notice that your engine is running at higher temperatures than normal that may be a sign that. When the AC compressor is activated it is actually expected that the radiator fan runs.
Ignition ON activate the cooling fan relay 1 with a scan tool. Adding coolant to a radiator dry enough not to trigger the engine temp sensor can cause problems from drastic temperature change. The most common reasons a BMW 535i xDrive radiator fan isnt working are the fan assembly the fan clutch or the coolant temperature sensor.
When Both AC Fan And Compressor Are Not Working. For instance the radiator fan is needed when the temperature sensor of the cooling fluid in the lower tank reaches approximately 212F. This is a on off problem.
This is what I have doneReplaced the fans because the radiator fan was bad after hooking them up directly to the battery. Fan relay or AC relay. Depending on which air conditioner system you have there are different sensors that check the pressure in the system.
An AC system requires a. Get answers from RepairPals community of auto experts and enthusiasts. Afraid to drive it.
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. 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.
Is the fan on an AC unit outside not spinning. For whatever reason it has taken probably a few years before I realized this but my radiator fan is not workingrunning. 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.
Like any other clutch a fan clutch will wear out over time. Usually a faulty cooling fan relay will produce a few symptoms that can alert the driver that service may be required. Connect your test light to battery ground.
But if I try it a couple of times BOTH the AC Radiator Fans start working. If so where are they located. As for the engine coolant temp sensor if the coolant is not hot enough to make the fan come on then there is no need for the fan yet and there is no problem.
In order for the AC Condensor to do its job it must stay as cool as it can. So i started it back on for 20 sec. See your whats this wire for thread for an explanation of the coolant temp sensor found in the radiator.
Wait for the engine to reach operating temperature. Let it cool down first.
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