It's been awhile since I've been on the site but I could use some help.
I have a Miller CMF 80 PG furnace. 2 weeks ago, when I opened the house, the furnace was not running. The T-stat was set at 55 but the temp in the house was so low the digital readout only said "low" (luckily no pipes were frozen). I turned it off, and after a few seconds turned it back on. I heard the T-stat click and then the furnace started normally and worked fine for 2 days. This weekend the same thing happened. I was able to once again able to get it running by turning the power off and on again.
The T-stat was new last year but I replaced it anyway and the same thing happened. Any ideas on what would cause the furnace not to start when the T-stat sends the signal?
CMF 80 PG
Hi,
Are you sure that t-stat is in fact sending signal to furnace when it fails to start ?
Have you tested white t-stat wire at furnace to ground for 24vac ?
Thanks,
Robert
Are you sure that t-stat is in fact sending signal to furnace when it fails to start ?
Have you tested white t-stat wire at furnace to ground for 24vac ?
Thanks,
Robert
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