just a rad fan/ defrost question

[smoken u]

just wondering on a 1991 jetta TD with airconditioning, is the rad fan supposed to come on when defrost is selected?, the car is being driven in the winter, and the A/C is disconnected so it doesent need to come on when its defrosting, if i disconnect the switch on the back of the heater control panel, will this stop the rad fan from coming on at all ( i dont want to risk the car over heating, because its not me who is going to be driving)

[the caveman]

Rad fan coming on while defrost is selected is normal. Your question of disconnecting it at the fan switch is the way to go.

[smoken u]

Thank you caveman, will do