Question about Honeywell HE440A1005 Humidifier

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HE440A Steam Power Humidifier

I moved into a 7 year old house 3 months ago with a HE440A steam power humidifier. This morning I discovered water coming out of the over flow drain. Have shut the unit off, but how do I fix it?

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Re: HE440A Steam Power Humidifier

The most common cause of overflow is when hard water deposits build up and prevent the float from closing. You'll have to open up the unit, make sure there's no water in it, and clean out any mineral deposits.

The problem with these steam producing units is that there is no built in way to remove those deposits automatically. The water comes in, evaporates, and leaves anything else that was suspended in it behind.

Posted on Nov 14, 2007

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Honeywell has had lots of problems with this humidifier. They are coming out with a completely redesigned steam humidifier that will be available in a month or two. If you know who installed it (through equipment stickers and such) you can probably get them to swap your old trouble prone unit for the new design for just the labor. If they won't, then push them to talk with their Honeywell distributor about it.

The problem is most likely a stuck float in the humidifier. There are two floats that run up and down. One that tells it when to add water, and one that is a safety. They both tend to get stuck with mineral deposits.

You can fix it by unplugging the humidifier, turning off the water, draining the pan (unscrew the drain on the bottom a few turns), disconnecting the water lines and wires (2 molded plugs and 2 screw terminals-don't worry about if they get swapped). There should be a couple of screws that lock it into the ductwork such that when you remove the screws you can pull the whole unit out to see inside the water tank. Then just clean everything out well and put it back together in the same order.

You really do want Honeywell to get you a new humidifier though.

Nov 14, 2007 | Honeywell HE440A1005 Humidifier

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