Trace back the wiring 'til you get to the power supply. Make sure the the connection are tight.
If you have a meter check for voltage at the solenoid. Barring that Turn on furnace with humidistat in highest setting and feel the water valve for a tell tale "click".
If all the above checks out you need to turn of the furnace and shut off the water line temporarily.
Now loosen the compression nut on the humid water line and remove the line and put in a bucket. Turn on humid water supply. If no water comes our out you are plugged at the water valve.
Now the you must turn off the water supply to the home.
Go to the valve and unscrew the packing gland shaft nut until the shaft assembly comes out. Insert a 1/16 or 1/32 inch and turn it clock wise
until it bites into the debris that is plugging the valve. Re-install valve shaft until it bottoms out. Stop there and don't tighten any more Tighten packing nut finger tight. Turn on home water supply.
Now back the shaft out of the humid water valve to the fully open position
With the humid end of hose in bucket flush line to thoroughly remove any dirt.
Turn off the water valve for the humid water line.
Re attach water line to humidifier.
Just slow, not stupid.
Last edited by hvaclover; 11-18-2008 at 11:10 AM.