I have a forced hot air furnace, Carrier gas model. I also have a programmable thermostat programmed to come on at 4:30 up to 66 degrees. When I get home from work the blower is not on and the temp on the thermostat reads around 60, where it is programmed to be during the day. If I cut the power either at the E switch or the breaker and then turn it back on the blower starts up and the house heats up. Any obvious problems??