The burner and fan shut off just as it would normally. I keep the filters
clean...it has both a wire mesh type filter and an electronic air cleaner
built into the return.
I suspect that you're right about it reaching the high set point and cycling
off as a safety feature. So then , is there something that can be done
or adjusted so that it will reach the thermostat setting in one cycle or is
this the way it has to be? It's not a big problem, I've just always
been curious about it.
Thanks to all who responded.