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ACCORDING to Mark Lynch of Carcool Airconditioning, there are three possible causes of ``no heat'' with this EF Fairmont: a blocked heater core, a faulty blend door motor or a broken heater flap shaft. To diagnose the problem, set the control on manual floor and the fan speed at medium and, with your hand over the floor outlet, range the temperature from 16-32 degrees and back. You should feel a variation from cold to warm back to cold, If you do, you have a blocked heater core. If there is no temperature variation, it will be the blend door motor or a broken shaft. You can confirm which one by doing a climate control self-test (refer to a Ford manual) which will confirm an E2 error (blend door faulty) or, if no fault is shown, it will be a broken flap shaft.
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