Humidifier Problem

[DTro]

Instead of hijacking another thread, I'll just start a new one.

I have a honewell bypass furnace mount humidifier that the water line will not shut off.

There is a humidistat that is connected to an electonic orifice valve that is connected to the water line that runs into the filter pad. There is a sail switch in the plenum that is activated when the furnace kicks in.

My thought is that the valve is bad. But I'm not sure. Basically the problem is that the pad fills to capacity then it constantly drains out the tube (steady stream).

Any ideas?

[Chad Halvorson]

The sail switch is normally open, it closes when the air moves the switch, sending 24v to the water solenoid. Sounds like it is stuck, which is not surprising with the moisture. You should still be able to break the 24v via the humidistat. However I didnt wire it so you never know.

[DTro]

The switch is working fine. It is open, and I can hear the valve click when I move the sail switch open and closed.

[Valv]

I cannot help you much on this, I just bought same Honeywell unit yesterday and will install today. The system appears very simple. Could it be there's something stuck in valve and doesn't shut off completely ? If you have to get repairs.....the unit is on sale at Menards for $ 64.00 until saturday

[Surface Tension]

So your saying when the furnace shuts off the water continues to run though the system.

HE225A,B AND HE265A,B BY-PASS FLOW-THROUGH HUMIDIFIERS

69-1423EF–2

CHECKING YOUR

HUMIDIFIER OPERATION

After winter startup or servicing, use the

following steps to check the humidifier

operation:

1. Turn on the humidifier power and water

supply.

2. Turn the H8908B Convertible Humidity

Control to the highest setting, or the

H1008A Automatic Humidity Control to

the test position, and set the thermostat

to 10°F (6°C) above the room

temperature.

NOTE: The H1008A Automatic

Humidity Control stays in the

test mode for thirty minutes.

After thirty minutes, the

control automatically resets to

the maximum frost factor

setting. If system checkout

has not been completed in

thirty minutes, the test mode

can be extended by turning

the dial back to one of the dial

settings and then returning it

to the test mode.

3. Observe that water is flowing out of the

drain hose.

NOTE: The furnace blower must be

on to activate the humidifier.

4. Reset the thermostat and H8908B

Convertible Humidity Control to a

comfortable setting or the H1008A

Automatic Humidity Control to the

desired frost factor setting, for automatic

operation.

[DTro]

I'll have to look into that "test mode" thing. I can turn the water on, set the humidity level, come back a few hours later. The furnace is off, but the water continuously runs.

[Chad Halvorson]

Then your solenoid is jammed up, cant close... There is a screen in there (should be) if it wasnt put in, that valve has all kinds of junk in there...

[DTro]

I tried taking the valve apart, but got to a point where there was nothing more to disassemble (that I could see).

It looked like it was magnetically controlled or something.

I guess I should just maybe buy a new one if I can.

maybe not.....just looked and they are $75

[Chad Halvorson]

I have on on my shelf, contact me via email I can ship it out today. [email protected]

[DTro]

Thanks Chad I appreciate it. I'm going to stop at HD tonight to see what my options are.

[DTro]

Just to close this out, I was able to locate a new solenoid/valve, and it now works like a charm.

Thanks for the help guys