On the hot serface ignition down by where the wires go in there is a flashing red light coming from I believe the blue wire, and the furnace won't start
JonesHVAC
Oct 19, 2011, 05:31 PM
Brand and model of furnace please. Also the light is on the control board... how many flashes? Are they long and short or all short? Thank you
petunia32
Apr 2, 2013, 07:11 AM
Intertherm furnace model mmhb 070abhr-06 2 short flashes