Cauf61

Hello Everybody

My name is Patrick and am from Belgium.

I have exactly the same problem. But I did not find the solution in this old thread.

Quote : " When the CCU temperature is set to low (blue dot), the fan works 1-2-3-4. As I start increasing the temperature by ¼ turn, the fan shuts off and the fan **** is not functional. When the temperature is again turned down to the blue dot, the fan comes back on and the fan speed is controlled by fan ****."

Something about the rear fan maybe ????

Grts Patrick

ToreB

Yes, rear fan problems. If the CCU senses that the rear fan does not work when needed, it shuts off the two main blowers.
Check rear fan low speed resistor, relay, fan motor and fuse. Tets procedure here: https://www.bergvillfx.com/categorie...test-procedure
Cheers,
Tore

Cauf61

Great T. Stupid question. Where is the relay and fuse for rear blower located. It is not in the front relay box, no ?

systemsc

It's in the rear.

Cauf61

Found them. Blower motor is "open circuit". When I put +12V on the 87 pin the ccu/ fans continues to work. Wil need a new one.

midnight 911

Check connector hasn't fallen off the rear blower motor like mine did.