Hello everyone, heater blower keeps blowing fuses. unplugged at the motor, voltage check, only 12v on position 4. took of the motor and it was stuck solid, freed it off by hand, quick spray with wd40, connected 12v to it in the shed and it worked fine. fitted it back on, works great on position 4 only. It was working fine on 1 2 3 and 4 before i had the problem. also noticed no power to the aircon button, (no lighting up). that was working before. Please help.