Questions & Answers for: intertherm furnace limit switch open

...intertherm furnace gas powered hot air and it has a pilot light but does not respond to thermostat settings not even fan setting BUT if I got into the unit and hit fan switch for air circulation the ...

Intertherm Furnace Will not stay on I have had to hit the reset button for it to heat. Now, I have a blinking light that indicates ''Limit Circuit Open or External Load on W.'' What does this mean? I ...

...intertherm furnace model #m1mb77ab its alittle over 2 years old sometimes the flame will not ignite it the red light flashes 1 time meaning limit switch is open sometimes it flashes 2 times meaning ...

Intertherm MGH-056ABFC-91 won't kick on. Just changed thermocouple, gas valve, and thermostat this week. Changed fan motor, blower wheel, and limit switch last winter. Pilot is lit, thermostat is set.

...intertherm furnace modelm1mb o7oabw, the diagnostic light flashes once for limit switch open,but i've replaced the limit switches,any ideas? Hello, a limit switch will open for the following reasons, ...

intertherm mmha070 not getting heat,,,fan just keeps blowing and blowing cold air...red light constantly flashing...says limit switch is open but furnace guy has been here twice and says the switch is

intertherm gas furnace pressure switch model number m3rl080abw indicater light reports pressure switch open with inducer on, checked air suppy in and exhaust, checked hoses and fittings, replaced ...

Intertherm electric furnace model E2EB-015HA. Upper element will come on and run continously in 20 degree temp, Lower two elements don't come on. What's up? Sounds like one or 2 stages of the ...

Intertherm M1MB070ABW furnace? I am getting a flash code 1 that the limit switch is open but I don't know where the limit switch is or how to troubleshoot/replace it. it would be a safety switch up by

Intertherm m1m b ,just replaced igniter , it heats up but furnace will not ignite , code is” limit switch is open “?? you can try this manual http://yaunco.com/pdfs/nordyne/Residential/m1install.pdf