89 560 SEC heating problem

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89 560 SEC heating problem

03-03-2009, 11:40 PM

Copperwire Copperwire is offline

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Join Date: Feb 2009

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89 560 SEC heating problem

The heater on our 560 isn't working, replaced the control head and the mono valve, still no heat. The air conditioner compressor seems to be working fine and the mono valve is opening and closing as it should. The heater core is fine, no leaks or blockagr. Is there any control that would cause either cold air only to go through the system or not allow heated air?

Last edited by Copperwire; 03-22-2009 at 08:00 PM.

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