I have a Honeywell non programmable thermostat model # TH5110D and a 2-1/2 year old Armstrong Air furnace model # A95UH1D070B12A-02 that I have a intermitting problems with sometimes when the thermostat calls for heat the furnace will come on and run for only 2to 3 minutes and then shut off and the
thermostat still says that the heat is on sometimes it will come back and run for a while other times the thermostat will click and the heat on will go off the
other problem that I have is some time when the thermostat calls for heat the inducer motor will come on for 10 to 15 seconds and then turn off then after
3 to 4 minutes it will come back on all the time the thermostat says that the heat is on it does not do this when they come to fix it and there are no codes
on the furnace.