Radiator fan, aircon electrical problems

[shakey]

Hi, need some help solving some electrical problems on my 91 syncro vanagon(2.1mv). I have no radiator fan stage 1 and 2 or aircon( although all blowers are working fine).
I have tested the radiator fan by shorting across the 3 pin connector to the thermo switch and only one side works(side with blue/red wire not working). I have replaced the resistor pack(courtesy of Aidan, top service by the way), fitted and its still not working properly with only one radiator fan speed running. Is this a relay problem? And why is my aircon now affected? or is this coincidence?
cheers
shakey

[matt brighton]

Shakey,

Not sure if this helps.........

but only this week I have been sorting a cooling fan gremlin on my 1.6 d 1982... mine has x2 - 2 pin - thermo switches for low and high speed and what baffled me was that a later 3 pin switch had been installed and wired in using wxisting loom connections - and i thermo sitch unconnected - and a "spare" single live wire - - and it took me a while to devil out and reconcile the wiring diagram to what I saw on the van.... anyway.....

For my stage 2 to kick in stage 1 needs to be running to complete the circuits between thermo switch/relay and fan motor and fire up the higher speed - it may be the same needed to spark yours up

AC systems need airflow to work - whan fans dont work then they will only refridgerate air over 30 mph - the airflow of forward motion doing what the fan does when standing still

it may be the same for yours..

Hope you get fixed

matt - brighton

ps what was behind that green door ????

[matt brighton]

Shakey,

Not sure if this helps.........

but only this week I have been sorting a cooling fan gremlin on my 1.6 d 1982... mine has x2 - 2 pin - thermo switches for low and high speed and what baffled me was that a later 3 pin switch had been installed and wired in using wxisting loom connections - and i thermo sitch unconnected - and a "spare" single live wire - - and it took me a while to devil out and reconcile the wiring diagram to what I saw on the van.... anyway.....

For my stage 2 to kick in stage 1 needs to be running to complete the circuits between thermo switch/relay and fan motor and fire up the higher speed - it may be the same needed to spark yours up

AC systems need airflow to work - whan fans dont work then they will only refridgerate air over 30 mph - the airflow of forward motion doing what the fan does when standing still

it may be the same for yours..

Hope you get fixed

matt - brighton

ps what was behind that green door ????

[bigherb]

Did the original resistor block have three connection with four wires going to them? Which should be for vehicles with aircon which has a three speed fan controlled by two relays. One is in relay holder 5 and the other is either mounted on the A post or clipped to the fuse box.