Power stage repaired and all working - phew!

Just sent off my spare power stage 9134933 off for "repair", will report back when it returns!

I can't clearly remember now....but the connector i plugged in fitted perfectly and blower started in high speed with key removed from ignition...it was a "live" plug.

I knew immediately that i plugged wrong one...rechecked...and second time i plugged the correct one.Turned key in pos.I and ...

Yes...but there are at least 3 different versions which are NOT interchangeable.


The power stage model I need is 9134933 which is near on impossible to find for sale. It would be good if someone could test the ones I have or recondition. There are some with a model number 9134932 which is for ...

Check if you didn't crossed main connectors(2 pin black one) for blower's main power.
It happened to me when i was replacing mine.

No control signal to power stage could be bad ECC.
They are prone to failure.


I wish it was that. When you say crossed due you mean using the wrong plug. The ...

Hi, hopefully somebody can help.
I recently had a problem with my 850R where the heater fan stopped blowing so I replaced the fuses in slot 5 & 31. Obviously this was a bad move as it nearly started a fire as the fan had seized and the replaced fuse caused it to go in to melt down as smoke came out ...