2000 996 - Rad Fans

[Philip54]

On my 996 rhe rad fans turn on only when the A/C is on. If the A/C is off, the rad fans stay off, doesn't matter how hot is the engine.

Has anybody experienced a similar problem and how can this be corrected?

Thanks

[Loren]

Switch-on conditions for coolant or condenser blower motors

Stage 1 is switched on when the coolant temperature is > 100° C

or

there is an AC demand, the intake air temperature is > 8° C and terminal 15 is switched on.

Stage 2 is switched on when the coolant temperature is > 105° C

or

the refrigerant pressure is > 16 bar

[Philip54]

Thanks, Loren.

I had reached 100° C, that, I thought, was already hot. I will pay attention to the fans if I get to 101° C. If everything is per specs the fans should switch on.

Stage 1 is switched on when the coolant temperature is > 100° C

or

there is an AC demand, the intake air temperature is > 8° C and terminal 15 is switched on.

Stage 2 is switched on when the coolant temperature is > 105° C

or

the refrigerant pressure is > 16 bar