I went ahead and tested the limit switches and pressure switch for voltages and they all checked out. I then pulled the board and seen a blow out on the board circuit trails. A local heating and cooling company that we use for work had a board in stock. Swapped it out and fired it right up. Flame lo...

Nordyne M1M series Model Number: M1MB 0774 BW Serial Number: M1d020805860 Questionable part: Control Board 624602B / 903429 Working on my sister in-law's mobile home, She has no heat and already busted pipes because of freezing. She's space heating now for heat. Anyways. I call for heat, I can hear ...