radiator fan not working when ac is on
A simple way to check if the radiator fan is working is to start your engine and turn the air-conditioning system to the maximum speed. If not the low speed aspect is burned outOr the brushes are shot.
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. Using your kick-start stick to manually spin the fan makes this easier. Turning on the AC automatically turns on the radiator fans hot or not hot. See your whats this wire for thread for an explanation of the coolant temp sensor found in the radiator.
Driving your car is a good way to get the coolant temp hot. Start your vehicle and let it idle for 10-15 minutes. Ac will be on and coolant fan is commanded on alsoi hope this will help.
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. Quincy qgs rotary screw air compressor. 2016 Kuga Titanium 20l EcoBoost 6F35 auto and AWD.
If the fan does not turn on you will need to replace it. The AC system depends upon being able to dissipate heat into the engine coolant. Switch for the fansfan relay shorted closedand possibly a computercheck for codescoolant level in radiator when coldremove relay for fan and see if the fan stops.
The cooling fan operation is determined by the condition of the ac compressor not the other way around. Pinole valley high school athletics. If the radiator fan is in working condition move on to the next step.
Radiator fan not working when ac is offanna delvey new york magazine original article radiator fan not working when ac is off. Well i did check coolant temp sensor it is pluged in lower radiator hose this. Or the control logic that dictate which switch will control the radiator fan motor when engine temperature reach a preset level with or without the AC being ON.
Check to see if the ac is on or if the heater ac switch is in defrost position. A broken fan may not seem like much but it can cause overheating and of course your ac not to work at lower speeds. 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.
As for the engine coolant temp sensor if the coolant is not hot enough to make the fan come on then. In either case we recommend calling a professional HVAC technician to diagnose and remedy the problem. Turn off the AC from the thermostat and the circuit breaker.
If the fan comes on when the air conditioning is operating at maximum volume but doesnt run properly when the engine is warm or hot then you might need to check the temperature switch. Depending on if and when the radiator fan comes on will affect what you should do next and if the radiator fan has stopped working. Yes a broken radiator fan can cause the air conditiong to stop working.
Radiator fan testing points. 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. 2-out of-3 falls match wwe.
The most likely culprits are a thermostatic switch fan resistor temperature switch low-speed or high-speed relay or a wiring issue. Each plug has three connections. Low engine coolant coolant temp.
If the compressor doesnt run the fan doesnt run. You can unplug each fan and test to see if brushes or the low speed is the culprit. In other words the system is low on refrigerant.
If the beltviscous clutch fan is moving enough air assuming your car has auto transmission electric fan wont run. Watch the vehicle and see if the cooling fan comes on. If you notice any debris clear it out turn everything back on and listen to it again while its running.
If the fan is spinning then it means that the fan motor fuse wiring and relay are all working properly. Please add your vehicle details into your Signature - click on your forum avatar on the top RHS of the page then Account Settings. From you description it sounds as though the system isnt building enough pressure and by relation enough heat to turn the cooling fans on.
If the vehicle overheats care should be taken when driving to prevent further damage by overheating. That fan is where the air flow is coming from until you get up to speed. Just so does radiator fan affect AC.
Unplug the radiator fan connector. Run jumper wires between the connectors two electrical terminals. 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.
In order for the AC Condensor to do its job it must stay as cool as it can. If the fan blades dont spin at all its likely the condenser fan is not working and possibly burnt out requiring replacement. Step 4 Check the engine coolant temperature ECT sensor.
See Contact Test in Step 1. One is ground and the other two are high and low. No only comes on when the coolant is too hot.
If you turn on the key turn on the fan on the dash and press the AC button both fans out front should come on. Up to 8 cash back The best remedy for this is getting your AC serviced. Hello there a couple of different items can cause the fan to not work like this.
Air conditioner fans not working can be a sign of a frozen evaporator coil. Check the fan for any debris or components it is contacting while spinning. Im not sure on how the condenser cooling fan is set to operate on the Escape but usually the AC will turn the fan on when the compressor is engaged.
The same way your radiator needs airflow to cool the coolant your condenser needs airflow to cool the freon that makes cold air.
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