History on furnace, last year my dad started the furnace and it reached temp but would not shut down so he tried to turn off furnace at tstat, that did not shut it down. Furnace kept running and heating so he finally went to the breaker and shut down the power. When he went to start this year nothin...

TRYED ALL THAT REPLACE TRANSFORMER, BY PASSED TSTAT, AND TRYED ANOTHER TSTAT. NO RESPONSE. GAS VALVE DOES NOT OPEN, IGNITER DOES NOT COME ON. DOES NOT GO INTO CYCLE, WHAT NEXT????????

fan will not start from the tstat, only at the rocker switch, after replaceing tstat the furnace still will not start. no pilot, gas valve not opening and fan does not come on

I have a miller gas furnace model MMHA-056ABHR-01. Furnace not running, will not even start. Replaced t-stat and still will not start. checked power to unit - power is on fan will run if you turn on fan switch. dont know if it is the control module or what any ideas?

thanks, rb