Hello, had an issue with my heaters I got in the van yesterday to take it for test and the heaters didn't work, which meant an interesting drive to the test centre.
The fuse had blown (64) under the bonnet so I changed this and it blew again. Changed it and checked each setting and it only blew on setting number 4. I pulled the motor out and it was a bit stiff so I freed it off (been sat for a while so a bit of wd40 and span it with the airline till it would spin freely) and put it back in and it works fine but only on number 4.
I checked the voltage at both blue/black cables at the resistor pack and no voltage is going to them so I checked voltage at the switch black and yellow and black and orange and no voltage there either.
Swapped r1 with another relay (radiator fan relay) no power at heater switch.
I don't have a relay in r2 could that be the problem?
Anyone have any idea what could cause this?
Cheers