I have had a ranco humidistrat installed on air feed plenum to gasfired furnace. It worked fine last year. I changed the filter and nozzle this year and it won't start working. Could the solenoid go bad?I haven' touched any wires from humiddistat to furnace to solenoid. We have had warm weather here but could that be the cause of humidistat not starting up? Thanks
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Usually the unit is mounted to the cold air return (cold or intake air) and the round hose is then attached to the plenum (hot or discharge air). The humidistat is usually mounted just above the unit onto the meta plenum, unless you have a control somewhere else or your main t/stat has that capability built in. Its usually wired in with the furnace 24Vac control (or whatever yours happens to be) so that the unit only comes only when the furnace is on.
Depending on the age of your furnace you may have an aux terminal for a humidifier. If not, you should use the white wire (heat) coming from the homes thermostat to power up the humidistat and ultimately bring on the humidifier. This way it will only run when in heating mode.
I have similar isssue with HE220 but in my case the water run through all ththe time, even when unplugged from the power outlet. Would that be solenoid issue? the unit run fine for last season so the wiring is fine.
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It's supplier responsibility to make the unit right. are you controlling your dehumidifier with remote, If so, remove battery in remote and reset it. And then check. If still problem, please get manuals fro the following site and do accordingly
SERVICEMANUALS @ COSTwww.mauritron.comManuals at free download:
Neither, even if the solenoid or humidistat stick, it should always drain properly. Is the unit mounted on the cold air return duct or the supply plenum? If it's mounted on the supply plenum, the water panel might be getting blown forward and spilling the water. High efficient furnaces also can leak water on the floor if its drain is restricted. If hum. is mounted on return duct make sure drain is clear by blowing through it. On Honeywell hum's I've seen the rubber hose from the solenoid valve to the distributor tray leak too, check the rubber 1/4" hose.
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.
The humidifier is designed to "pull" the air through the water panel. After it does the humidified air will re-enter the plenum on the side of the opening that it is pulling in from. Just keep the water panel replaced every year and you will be fine.
I suppose you are looking at the do-it-yourself model. Depending on the wire that is run up to you Regular Thermostat from your furnace. You may have to run a seperate line for the Humidistat. A digital thermostat that does Humidity and Temperature is recommended. Or you could just place a Humidistat near the furnace room. A wiring diagram will come with the Humidifier discribing the different ways to wire it.
I called the service company that put in my new furnace (FAmily Heating and Cooling in Detroit, very highly recommend these people)
Anyway they sent out a second service tech who determined that I would be better off having the humidifier wired to go on whenever the furnace fan was running instead of using the humidifier signal from the circuit board on the furnace. After he changed the wiring the unit runs fine. It is pretty likely that the circuit board was bad also.