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Heating troubles


cornish6544
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Since I've had my classic since july the heating hasn't worked , if you turn it on cold air still blows out but doesn't heat up , wasn't a problem in summer but now i wouldn't mind having some heating and demisting the windscreen is becoming a problem

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Once the engines warm check the 2 coolant pipes that go into the bulkhead towards the heater matrix are getting warm .

The black and blue ones in this pic behind the gearbox bell housing are the flow and return.

3A8483A7-orig_zps4b4c8afe.jpg

If 1 is hot and 1 is not the it's either a blockage or air lock in the heater matrix (little rad behind the dash)

If they're both hot then it's probably the heater control cables that have either broken or disconnected from the flap that diverts the blower air through the matrix to heat the air and visa versa

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