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Heater failure on Ford Fusion - what's the cause?

The heater seems to have packed up on my Ford Fusion. All I get is cold air through the air vents, even when the dial is on the hottest setting. Any ideas?

Asked on 1 December 2013 by gilo

Answered by Honest John
Quite common. The electric valve in the pipes between the engine and the heater matrix fails.

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