Join Date: Jan 2005
Location: The Netherlands
County: Zuid Holland
did you also check the relay for the lo-speed fan setting ?
not sure if it has 2 speeds, but I guess if there's a resistor, which as you said you replaced, there should be 2 speeds....
The control unit controls the switching on of the electric fan in accordance with the coolant temperature:
- temperature for switching on 1st speed 95° C
- temperature for switching on 2nd speed 102° C
There is a further check (4 stage pressure switch signal) which engages the 1st or 2nd fan speed, according to the pressure of the rerigerant gas, with the air conditioning system switched on.
In the absence of the coolant temperature signal, the control unit activates the recovery function and switches on the fan 2nd speed until the error disappears.
Last edited by jwq; 27-05-14 at 11:41.