Question about Heating & Cooling
I am trying to replace my fan limit switch from a goodman
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Posted on Jan 02, 2017
The fan limit switch is basically like a thermostat. When the plenum heats up to a certain degree it turns on the fan to start heating your house, and turns off when the fan off when the plenum gets around 80-90 degrees so that you’re not pumping cold air in to house. It also acts as a safety switch if the fan does not come on the plenum will get way to hot so this fan limit will kick the furnace off before that happens. As far as that little white button it should always be on auto you can try to use needle nose pliers to get it back into the auto position, or if you have the broken piece you can try to glue it back on. The white button goes in and out it does not turn or anything just make sure you turn the power off first and if u can’t fix it replace.
Posted on Nov 17, 2008
I have a goodman GMP075-3 that won't turn on. I think it is the pressure switch since I do not have a vent blockage. What is a venter and where can I find it??
Posted on Dec 30, 2008
sounds like the primary limit typically behind the gas valve its larger then the others, rectangle in shape with 2 wires going to it. be careful if your bypassing limit this can create a very hazardous condition
Posted on Nov 06, 2009
Did you clean the sensor with a piece of sand paper? Then wipe it with a dollar bill. The bill has a fire proof like chemical on it. Rubbing it on the sensor will coat it and keep it cean longer. If this dont work let me know
Posted on Mar 21, 2010
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