Quote:
Originally Posted by HarryM1BYT
QUOTE=Jakg
Quick question.... if you drive for an hour, with the coolant temp 80+, and when you stop and turn the ignition off you can still hear the FBH running, what would this suggest?
If the temperature is definately higher than the 77C that the FBH is supposed to turn off at, then I would guess at the FBH being wrongly triggered by activity on the k-bus - try cutting that white/red/yellow k-bus wire.
Mine comes on and makes a noise, but doesn't appear to actually do any heating...
Try the test mode (grounding pin3 on the later model). If it doesn't go through the firing sequence - Running for a few seconds, silent for a few seconds, running again combined with the pump ticking, then the slight roar of combustion, it is probably a faulty PCB. Talk to FrenchMike about a PCB repair.
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PCB's fine, already sent to Mike.
Will try cutting the K-Bus wire tonight...
I DID get a lot of white smoke when it first got cold though - guessing I need to strip mine down to service it.
Really need to get this sorted at some point!
EDIT - Cut. Will test it when I go out tonight...