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View Full Version : No heat after first cycle.


tfreese
Oct 5, 2011, 08:14 PM
Comfort maker model # CGUA06012 forced draft gas up flow furnace with Fenwal System, D.S.I

It will heat on first cycle. About 2 or 3 hours later when calls for a cycle only blower runs and will not heat. I have to turn off main switch to furnice to reset ignitor. Can anybody help?

JonesHVAC
Oct 11, 2011, 06:18 PM
With the information given it sounds like the high limit is sticking... do you have a multimeter?