Why does my electric fan stay on?
Cooling fans stay on at all times If the cooling fans are staying on at all times, this is another (less common) symptom of a possible problem with the cooling fan relay. If the relay shorts internally, it may cause power to be permanently switched on, which will cause the fans to run at all times.
How is the electric fan controlled?
The fans are controlled either with a thermostatic switch or by the engine computer, and they turn on when the temperature of the coolant goes above a set point. They turn back off when the temperature drops below that point.
What temp should my electric fan turn 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.
How do I know if my fan relay is blown?
Keep a lookout for the following bad cooling fan relay symptoms:
- The engine runs hot or overheats.
- The cooling fans don’t work.
- The cooling fans keep running.
- Warning lights.
- Poor air conditioning performance.
- Swapping Relays.
- Measuring the Relay Coil’s Resistance.
- Listening for Noises.
At what temperature should my cooling fan come on?
about 200 degrees Fahrenheit
Your radiator fan should kick in at about 200 degrees Fahrenheit. If you notice your vehicle is overheating or at the very least running hotter than it normally does, listen for the fan to see if you can hear it.
What temperature should fan be on 195 thermostat?
With a 195° “fan on” temperature, the “fan off” temperature will be 185° or so. This will result in the fan running all the time, and the fan trying to cool the engine with the thermostat trying to heat it. I’d recommend a 205° “fan on” temperature with the 180° thermostat.
Should both fans be on when AC is on?
Answer: You can— and should— run your A/C and ceiling fan together. Doing so can help lower your cooling costs each month, but only if you’re using them right.
How much does a fan relay cost?
Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing….Cooling Fan Relay Replacement pricing for various cars.
| Cars | 2007 BMW 760Li |
|---|---|
| Parts Cost | $65.98 |
| Labor Cost | $94.99 |
| Savings | 7% |
| Average Dealer Price | $173.48 |
What causes cooling fans not to come on?
The most common reasons a radiator fan is not working are luckily due to a blown fuse, bad relay, or a broken wire. It can also be caused by a faulty coolant temp sensor, low coolant level or the fan itself can be damaged.
What tells the cooling fan to come on?
Fan Trigger The engine temperature should trigger the fan to turn on. It will also turn the fan off once the engine has cooled to under 200 degrees. You may have heard of a part called the radiator fan switch or temperature fan switch. This is linked to a thermostat and works much like your home’s HVAC system.
At what temp should electric fans turn on?
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.