Humidifiers and Dehumidifiers - need help with my aprilaire 760 plz!

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2bighemis
01-21-08, 08:41 PM
the 760 was already installed when i bought the house, I replaced the solenoid 2 yrs ago, and all was good. Late last year I noticed the unit wasnt running at all. When i wiggle the on/off switch, the unit clicks briefly and i can see that the fan blade started to spin when it clicked.

I get 24v from my current sensing relay when the furnace is running. But im not quite sure where else to probe with my meter?

I have the old humidistat that only has the 2 wires coming off it, a white and red. I took the wires off the humidistat and tied them together to bypass it, but nothing happened.

Any help is much appreciated!

Jay11J
01-22-08, 02:00 PM
What happens if you bypass the A50 relay?