20 Most Recent Honeywell Power Humidifier: Furnace Humidifier/ Humidifier - Page 9 Questions & Answers

clean ligth its means still have dirt in filter or any,,,just clean and its will goes by its self,,if not try to off an on again,but still the same,,its means the sensor need to replace,call for the service technician,dont waste time and money if you dont have any idea for the repair

Sounds like your humidistat is the problem. Try turning it off, if still clicking, disconnect one of the wires at the valve (if accessable). If the valve doesn't close, replace valve. Otherwise replace humidistrat.

Here is a link to your humidifier manual http://dar.proflo.com/darmanager/Query?PRODUCT_ID=3520047&USE_TYPE=INSTALLATION

Put the humidifier number, not the solenoid number, into Google or directly at www.appliancefactoryparts.com . They show a breakdown of the humidifier and let you order replacement parts. I've just ordered the solenoid assembly, which they say is in stock.

Most of the humidifiers are run by 24 volts AC. disconnect the power wire to stat on circuit board and check there with meter and connect to low voltage ground for 24 volts, I'm assuming the two wires that power the humidistat are red and white.typically red is used for power. most likely you have power if the red for the stat is connected to the W on the board and the heat works, but the humidifier only works while heat is on.the next thing in line is the humidistat , it's a switch so if there is only two wires going to it take them off the stat and connect together, if furnace is on heat and running and stat wires are connected it will send power to water solenoid, if its not working yet the problem lies in the water solenoid if you have 24 volts at the two wires at solenoid.check while disconnected, do not connect those two wires together or a 3 amp fuse will blow on the furnace board. if you have 24 volts there then the valve may be bad or the valve may be stuck or clogged, loosen water supply line to make sure water is getting to valve. I spent many years working in the HVAC industry.