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Descale the boiler. You do that by putting vinegar in as you would water, start the machine until is starts spitting water then turn off for 30 or so minutes. Turn it back on and let it run. If it stops spitting, dump out the vinegar and flush the boiler with water until you no longer smell vinegar.
Hello, usually this is a sign of a drain problem or the water is entering the humidifier too fast. If the water is not draining at the end of the drain line something is preventing the water from flowing. I would also make sure that there is no heavy mineral buildup on the water panel pad this can cause water to leak out of the humidifier. Lastly check to make sure there is a orifice inside the supply water tubing leaving the solenoid, if not this causes the water to enter the humidifier too fast.
If you used the plastic tubing to the humidifier(I recomend copper) there should have been a little brass tube with a flare on it. This goes in the plastic tubing to grip the the sleeve better. See if this helps
Valves do go bad, but I had the same issue and it was the inlet orifice that was plugged. To fix: Turn off the water supply. Disconnect the water inlet line to the solenoid. The water inlet line connect to ~ 1" long piece that goes into the solenoid. Unscrew the water inlet piece and remove it from the solenoid. Check it for water flow - water should slowly drip out the small orifice at the soleniod side. There is a pin-hole sized orifice on the solenoid side and it doesn't take much to plug it. There is also a narrow cone-shaped filter inside the inlet piece. You can use tweezers to remove the filter and & use a safety pin or sewing needle to clear the orifice. Check the filter, clean it if necessary, and reinstall the filter. Now check for water flow thru the part before reinstalling. Reconnect the water inlet line and turn on the water supply. Turn your humidistat to trigger the humidifier. You should see water flowing through the drain tube.
It's more likely to be the valve. Turn the humidistat (rheostat) up and down and listen for a click at the humidifier valve. If it clicks and no water goes through, it's the valve or something in the water supply. The best way to test is to use a meter and check for power at the valve. They sometimes fail even if they appear to be operating. Scale (lime buildup) is usually the cause.
There is a small oriface that is installed next to the solenoid valve. It sounds like this oriface is missing. It reduces the water flow through the humidifier when it is working properly. You should be able to disassemble the solenoid fittings to check and see if the oriface is in the water line. For a "temporary" fix regulate the water pressure down by closing down on the saddle valve.
SPECIAL NOTES Discoloration/Black Particles
After use, the water residue in the bottom of the container may contain black particles, and, in
some areas the water and the bottom of container may discolor. These conditions are normal and
do not effect the purity of the steam or medicine. The container is easily cleaned with soap and
water. Rinse and dry the container after cleaning.
This was taken from the manual that comes with the humidifier...
Sounds like the air flow is too great and it is blowing the water in the bottom of the tray around before it gets a chance to drain. Try placing your summer, winter damper at half closed to slow the airflow down a little.
Sounds as if you feel the problem is the saddle valve. Check to see if water is available at the humidifier. Close the saddle valve, disconnect the water line at the humidifier side, then slowly turn the saddle valve back on. If you never see water, then correct the saddle valve. You can get details here: http://www.naturalhandyman.com/iip/infxtra/infsad.html#1
If you are getting water, but dont think that the unit is operating try sending 24VAC directly to the hunidifier and see if it operates, bypass the humidistat etc.