Questions & Answers for: furnace high limit switch keeps

...furnace? No Luck??called repairmn out for third time to see what was the problem? He said probably was the circuit board??but lites on board were working . cleaned the sensor and the blower and ran ...

...it's not heating the air and it keeps running even when i turn the thermostat off. Had to just turn the main switch to the furnace off to keep it from burning out. sounds like the high limits ...

...high no more than 11 You definitely have either a cracked heat exchanger or a carbon plugged one. Nasty a job to change exchanger, but it can be done. Coleman says these furnaces average life is 12 ...

...high limit is tripped, the furnace will bring on the fan continuously until the limit resets. Often, they will not reset if tripped repeatedly. If the furnace is too large for your application, you ...

...furnace has limit switches on it that detect heat, and if heat is getting trapped inside the unit to much, you will trip these switches and the blower will just run forever. Then you have to reset it ...

...furnace or air handler. On most systems, once this high limit switch has been made (got to hot), the limit switch breaks control voltage to the heating device (strips, gas, fuel, etc.etc..). The ...

...furnace....it is a temperature sensitive safety control intended to limit the temperature in the vestabule or burner area. if it keeps tripping, it's because something is causing the temp to get too ...

...furnace 'temperature rise' is getting too high due to a lack of air across the heat exchanger for whatever reason. Some of those reasons could be a restricted air filter or a blower motor that's ...

...furnace. The button on the top keeps popping off from getting too hot. I have to keep the cover off to keep heater working. It has done this since i put it in last year. The switch you are talking ...