Hydro Flame 8500 series furnace
Hello all, I have a hydro flame 8500 series furnace, the thermostat has an on-off switch,and a 3 position fan switch, low,auto and high,the furnace will not light on the auto setting but if I switch ...
Forum Discussion
The fan speed switch is for the A/C not the furnace. If switching it affects the furnace, I'd suspect a possible wiring issue at the thermostat.
