Hi My Crusader Carrier horizontal furnace was installed in January of
1990 and has worked well. I have a problem when we turn the thermostat down at night the furnace will fail to activate when we turn the thermostat up un the morninng or it will fire up and bring the house to the temp but will not fire again when the temp falls. I replaced the thermostat and that fixed the problem for last winter. but the same problem is occuring now. I turn the heat off and then back on at the thermostat and the fiurnace fires up and runs fine. I know the fist solution is to not turn the furnace down but I would like your help fixing this problem.
Thanks Geald Wesley