I have a circa 1992 Day&Night downflow gas furnace with A/C cooler added on. Recently the blower stopped running. The A/C compressor runs, but the blower will not move the cool air. Setting the thermostat fan from AUTO to ON results in a relay clicking noise in the furnace. I checked all the house circuit breakers and furnace circuit board in-line fuses. The blower squirrel cage moves easily by hand, so it is not jammed. I checked that the over-temp limit switch is reset. I had a service person in to look and he stated that there was no voltage going to the blower. He would do a circit board replace for $420. I said give some time to decide.
Does this seem reasonable? Is this a fair price? Is there something else anyone can suggest?
Thanks