1996 Jaguar XJ6 Q&A

1996 Jaguar XJ6 Question: heater valve

have no heat ac works fine , can i by pass it with a switch manual or other from season to season -
Answer 1
What is the problem with the heater valve? -
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i changed the heat control valve. i got heat for 20 min. then i got cold air and no heat. When i try to use the defrost, the ac comes on