What temperature do Subaru fans turn on?

Subaru Fan Activation Temperature
The temperature at which Subaru radiator fans turn on can vary slightly depending on the specific model and conditions. Here are some insights from Subaru owners and mechanics:
– The radiator fans on a 2015 Subaru are reported to kick on at 217°F with the A/C off, and the temperature usually doesn’t exceed 203°F with the A/C on.
– Another owner of a 2010 Forester mentioned that the low-speed fans kick on at 95°C (203°F) and other times at 100°C (212°F), but they haven’t seen the high-speed fans come on yet.
– A general guideline suggests that the radiator fan should kick in at about 200°F and turn off once the engine has cooled to under 200°F.
It’s important to note that the specific temperature at which the fans activate can be influenced by various factors such as engine load, outside temperature, and airflow. Additionally, the engine control module (ECM) uses the engine coolant temperature (ECT) to control the fans, and this can vary slightly based on the ECM’s programming.
In summary, the activation temperature for Subaru radiator fans can vary, but it generally falls within the range of 200-217°F, with some models activating the fans at lower temperatures for low-speed operation and higher temperatures for high-speed operation.

At what temp do fans stop working?

“Fans at any temperature up to 104°F, where there is some kind of humidity, are beneficial,” says Jay. “But as the temperature goes higher, if it’s dry then fans are progressively less useful and potentially detrimental.”

Should a fan clutch engaged when cold?

A thermal fan clutch is engaged on a cold startup because the fluid drains into the working area when the engine is shut off. The fan clutch will slow down shortly after startup as result of a pumping action produced by a difference in speed between the shaft and the body of a clutch.

What temperature does a fan clutch engage?

about 170°F
Answer: Most fan clutches engage at about 170°F air temperature (about 180-190°F engine temperature). They reduce the temperature about 20°F before disengaging.

Should radiator fan turn on immediately?

It depends on the specific design of the car’s cooling system. In some cars, the radiator fan is designed to come on immediately when the car is started, while in other cars, the fan may only come on when the engine reaches a certain temperature or when the air conditioning is turned on.

Why is my cooling fan not turning on with the AC?

In short, common issues that can cause an air conditioning unit fan to stop spinning are electrical issues, problems with the capacitor, contactor issues, a burnt out air conditioner motor, a broken fan belt, or clogged air filter.

Should radiator fan turn on when AC is on?

First, run the AC and see if the radiator fan runs: it’s supposed to run with the AC by default. If it doesn’t run, you likely have a low level of refrigerant in the system or a faulty switch or a sensor, or a bad fan motor, fuse, relay, or a wiring problem.

What temperature should thermo fans come on?

The thermo needs to come on at a temp a few degrees higher than the thermostat opening temperature, which is usually around 82-85 degree’s or there abouts, and there’s not much point having the thermo still running once the water temp is down to the point where the thermostat will begin to close.

Does radiator fan turn on immediately?

It depends on the specific design of the car’s cooling system. In some cars, the radiator fan is designed to come on immediately when the car is started, while in other cars, the fan may only come on when the engine reaches a certain temperature or when the air conditioning is turned on.

Should my car fan come on in winter?

Fans are required only when it’s hot and when the car is idling at standstill (or moving very slowly) and when the idling period is so long that the temperature limit is exceeded. However, it is worth mentioning that excessive idling at standstill could change the game depending on the type of winter in your area.

At what temperature does the radiator fan turn 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.