The heater was giving out hot even though the electronic switch was on cold.
I bought a second hand coolant valve unit, (The thing with four pipes connected to it with a solenoid fixed on the bulkhead), swapped them over and now its giving off cold air even when the switch is on hot. Presumably they are both faulty or could it be the heat adjuster switch?
Edited by Dynamic Dave on 30/04/2009 at 01:22
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