Hi all

My brilliant Roomster´s heater fan has started to make a humming noise after a few seconds, the fan slows down and then stops,
but not through mechanical resistance, seems like gets shut down electronically, after a few minutes I can start it again but always with the same result.

I have removed the soft panel above the passenger floor and opened the plastic fan shroud and studied it while this takes place,
there is no difference in moving the fan wheel before or after it has stopped, easily done with a finger.

Could this be the resistor that I read some people are changing?
But from what I understand when that is broken the fan does not start on 1 - 2 3 but runs on 4,
that is not the case with mine, it runs on all, then makes the humming noise on all.

Is a fan replacement do-able DIY? I am quite handy but would love "instructions" from someone who has done it.

 

Regards
/Petter

Does it run normally on position 4, ie. not slow down and stop. If the fan exhibits the same issues whilst on full speed the fault is not the resistor pack.