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Re: A/C overheat cutoff switch replacement
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Posted by Dean [Email] (more from Dean) on Mon, 11 Jun 2007 13:10:04 Share Post by Email
In Reply to: A/C overheat cutoff switch replacement, John Burnett, Mon, 11 Jun 2007 12:52:12
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I have never dealt with that myself.

Need to point out that a failed anti-frost switch on the evaporator will cause the cutoff switch to cycle then fail. A new one can do the same.

I have always suspected that the problem may be a low charge that allows the low side pressure to be too low which drives the boiling point low enough to frost up the evaporator. Earlier models did have a frost switch that was prone to failure as well.

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