front heater switch problem

[steve alan]

can somebody direct me to a post on the front heater for the bongo, somebody wired mine up directly to a off & on switch(bypasing the twist switch on the heater) the fans all work fine (although only at full speed now) I sure there was a post explaning how to service something in the eng bay that controled the speed of the fan (which gets water dripping on it and buggers it up),also need to get the correct wireing dig for it so I can try and get it back to normal
thanks
in advance
steven

[wonkanoby]

there is a faq sheet in members area

[francophile1947]

Fact sheet here http://www.igmaynard.co.uk/bongo/member ... sistor.pdf