Intertherm Furnace Keeps Kicking on
Posted: Fri Oct 16, 2009 1:23 am
I have an old Intertherm 1100 series furnace that heats up to the temperature set on the thermostat, then it kicks off and right back on a couple of times. Sometimes the blower motor tries to kick on then quits several times in a row. I have replace the thermo disc and last year i replaced the thermocoupler and the fan limit switch. Could it be the limit switch again? Also if I turn the thermostat above 70 sometimes the gas will kick on but not the blower and the furnace will get really hot.