I followed your advice, thanks guys. I get water to the solenoid. I can blow air through the other water feed tube coming from the solenoid. I don't think the solenoid is getting power, I have the blower running, I switch to test mode, no clicking, no LED's light up. I am not registering anything on the multimeter. Could I /should I also test for voltage on any of the leads in the circuit board>
By the way, this is an April Aire 700.
There is a switch inside the control unit, not sure what it does or if it's relevant. No LED's light up. There is no mention of it in the manual. Not sure where to go at this point. Thanks for any advice.