Mr. Heater Big Maxx not calling for heat, but no error codes
My old control board in my Mr. Heater Big Maxx (MHU45NG) had a problem, and one of the connectors and terminals fried. I just put that control board in about a year ago. So, after replacing it again, and reconnecting everything, It is not lighting. It doesn't show any call for heat, but also isn't showing any errors. The fan will run if the thermostat is turned up, but the gas and ignitor never come on. Any ideas?
Heating & Cooling - Mr. Heater
Answers & Comments
Check the pressure switch and the snap disks