Which relay is for fan?
Which relay is for fan?
The fan relay is usually located near the bottom of the engine compartment on a metal frame member. The metal acts as a heat sink to keep the fan relay cool. So, unplug the connector at the relay and repeat the check for power. If you get power, you’ve got a bum relay.
What is the purpose of a fan relay?
What Does a Cooling Fan Relay Do? The cooling fan relay is an electromagnetic switch that controls the power supply to the engine’s cooling fans. It ensures that the energy-intensive devices only run when needed, usually when the vehicle is immobile.
How does a fan relay work?
When the engine temperature approaches unsafe levels, the vehicle’s computer or temperature switch turns on the cooling fan relay. The activated relay completes a circuit, allowing an electric current to flow through it and reach the cooling fans.
How much does it cost to replace a fan relay?
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 happens when cooling fan relay goes out?
If the relay fails, it will be unable to supply power to the fans, and as a result they will not operate. This can lead to overheating, especially when the vehicle is at a stop, where there is no forward motion by the vehicle to pass air over the radiator.
What causes cooling fan relay failure?
Possible Causes of a Bad Cooling Fan Relay Common causes for relays failing to operate might be: Failure of the computer, temperature switch, or relay control module that turns the relay on or off. Damage caused by changing between circuits with different speeds and electrical load.
What size relay do I need?
An easy way to determine the limit of a relay is to multiply the rated Volts times the rated Amps. This will give you the total watts a relay can switch. Every relay will have two ratings: AC and DC. You should determine the AC watts and the DC watts, and never exceed these ratings.
How much does a fan relay cost?
When should you repair a fan relay?
Signs that indicate your cooling fan relay needs to be replaced include: The cooling fan continues to run, even when the vehicle is turned off. The air conditioning is not working properly, either it is not cool or does not work at all. The vehicle constantly overheats or the temperature gauge reads higher than normal.
How much does it cost to fix a radiator fan relay?
Damaged fan relay replacement – $60 to 70 including labor. Engine coolant temperature sensor replacement – ranges from $120 and $160 (dependent on the type of vehicle and model) Fan controller replacement – average cost is between $250 and $400 (dependent on the type of vehicle and model)