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Heater still not working!!

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New member
Have renewed flexi-hoses from heat exchangers & both butterfly valves. Control box between seats operates dash fans correctly and illuminates when lights switched on...BUT still no heat coming through. What to do next? Any suggestions, please. 1987Carrera Sport Coupe.
 
As long as the flaps open and close when moving the heater control between the seats, then I think is has to be the blower motor in the engine compartment. I had an issue with mine and all it was was the relay for the blower motor. Easiest way to check is to put the heater control onto the highest setting and turn the ignition on to the first position (ie no engine running) you should be able to hear the fan blowing in the engine compartment. Hope this helps.

 

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