On Sun, 06 Apr 2008 15:19:19 -0700, mac davis
<macsplinters@[EMAIL PROTECTED]
> wrote:
>On Sun, 06 Apr 2008 10:27:15 -0400, PeterD <peter2@[EMAIL PROTECTED]
> wrote:
>
>
>>
>>Check all the vacuum hoses in the HVAC unit. Does it swtich to defrost
>>from time to time too? If so that may indicate low vacuum.
>
>Not that I know of, Peter.. just from cool to warm...
>
>if you set it on vent, floor, both, etc., it seems to stay there, just
changes
>temperature a lot..
>
>
>mac
>
>Please remove splinters before emailing
That case, look at the water valve and control lines.
If it switched to defrost then that signals a total vacuum failure
(defrost is the default mode, for safety).
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