AprilAire 760 not running after installing new circuit board
Unit worked fine last year. Not running this year. I had a service tech come to the house and he determined the circuit board was bad. I bought a new board and put it in but the unit still is not working. I check and have 24 v from the humidistat and the 120 v line is hot when the furnace fan is running.
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Help
Humidifiers - Aprilaire - 700 Humidifier
Answers & Comments
I called the service company that put in my new furnace (FAmily Heating and Cooling in Detroit, very highly recommend these people)
Anyway they sent out a second service tech who determined that I would be better off having the humidifier wired to go on whenever the furnace fan was running instead of using the humidifier signal from the circuit board on the furnace. After he changed the wiring the unit runs fine. It is pretty likely that the circuit board was bad also.