How long does a car heater blower stay on?
The blower is supposed to stay on for a few minutes after the car is off. Look in your owners manual. I think it’s primarily for cold weather, it keeps the car interior warm until the heater core completely cools down. Not to say you don’t still have a problem separate from that.
Why does my Mercedes-Benz A / C blower run uncontrolled?
But under fault conditions it could fail as ‘always on’ or ‘never on’. Mostly (according to this forum) a failed BR causes the a/c blower to run uncontrolled. Btw your WIS a/c circuit diagram is not identical to mine for W208. However the blower motor/regulator part is the same.
How do I Turn Off the blower when the car is off?
Pull ignition key, blower remains off for 2-3 seconds, then starts running at lowest speed. Press “rest” switch – button lights, fan runs at higher speed. Press “rest” switch again – fan stops, then starts again at a lower speed. Something higher up in the power chain is providing power when the ign. switch is off and the fan switch is off.
How long does a Mercedes Benz blower fan run?
Pressed the switch again, the blower fan stopped again for a few seconds, then resumed the lower speed. The owner’s manual notes the fan may run for up to 30 minutes in warmer temperatures. Left it for an hour – still running at the low speed.
The blower is supposed to stay on for a few minutes after the car is off. Look in your owners manual. I think it’s primarily for cold weather, it keeps the car interior warm until the heater core completely cools down. Not to say you don’t still have a problem separate from that.
Can a blower motor run when the car is off?
I searched the forum, followed the advice of others and replaced the motor control attached to the side of the blower, pulled the blower itself and cleaned the brushes (they we not too warn, so I didn’t replace) but the problem continues.
Why does my blower keep turning on and off?
If when off you have an ignition main switch problem, and blower problem if when on you have a semi conductor problem with the blower control. The speed range of blower is dependent on the control setting. As a new part expensive, can you locate a used supplier?
Pressed the switch again, the blower fan stopped again for a few seconds, then resumed the lower speed. The owner’s manual notes the fan may run for up to 30 minutes in warmer temperatures. Left it for an hour – still running at the low speed.
Can a blower motor controller keep running after you shut down the engine?
If your car uses a blower motor controller, it can keep running the blower motor after you shut down the engine. Those used to be installed only on vehicles with automatic climate control with variable speed fans, but now they’re installed on many late model vehicles. How a blower motor controller differs from a blower motor resistor?
If when off you have an ignition main switch problem, and blower problem if when on you have a semi conductor problem with the blower control. The speed range of blower is dependent on the control setting. As a new part expensive, can you locate a used supplier?