I have a Lennox furnace and AC unit that were installed at the same time 5 years ago.
In the last couple of weeks if the power fails in my area and then comes back on a problem starts.
The condensing unit will start up but the furnace blower will not. This causes the evaporator to freeze up and the compressor to be coated with ice.
If I shut the power off to the furnace and then turn it back on the problem is fixed.
Any ideas??