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Hi, I'm Tim and I'm an HVAC expert here to assist you with your questions. Please provide all information I request as it makes it more difficult to troubleshoot something when I'm not there onsite. Essentially, you become my eyes and ears. Thanks for the opportunity to help. At the end of our dialog, you will have a chance to rate my service, but please wait until we are finished and you're satisfied you have all the information you need.
Is blower running and moving air through the house?
Go to your thermostat and put fan switch on ON instead of auto. Make sure blower door is on tight. Any air movement?
Open blower door, reach in and see if blower wheel spins freely.
You probably have a bad blower motor. This can be confirmed with a voltage reading at board.
If you have 120 volts to blower motor but it doesn't spin, replace motor. If no voltage, replace board.
It's got to be one or the other. That is why you are getting limit fault code. Furnace got so hot it tripped out on high limit.
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