When operational, there is a clicking sound every few seconds and the housing lifts up??

It's not uncommon for duct work in an older home to Bang as the furnace cycles due to age. The humidifier banging while turning on and of is mostlikely the solenoid valve; if the solenoid is bad it is actually to your benefit to replace the entire humidifier as the solenoids are very expensive, 50%+ of a new humidifier. Plus you get the 5 year parts warranty on the new unit instead of just one year on the solenoid. If you don't want to replace the entire unit you can replace the Humidistat, and that should fix the on/off cycling, however a new humidistat is included with a new unit, which again is more cost effective. They are easy enough to replace as a do it yourselfer, especially when replacing an existing unit. I hope this helps you.

This is either the solenoid or a loose low voltage wire. Make sure all the wiring connections are tight, if they are the solenoid if bad and will need to be replaced.

Hello, if you have 24 volts to the solenoid and the valve does not click open then it must be replaced. Also you can aplly power directly to the solenoid from the transformer and see if it will click open to let the water thru. either way looks like you solenoid is bad.

Do you feel like looking at the humidifier yourself?
You can open the door on the unit, while the furnace is running--
The humidifier is usually installed in the return air duct, so there will be a sucking of air into the open door, when you open it.

There is usually a large wheel, with a wet pad wrapped around the circumference.
This wheel rotates slowly, and picks up water from the sump-- does everything look and sound quiet as it runs? -- The float valve has to open and close, to c ontrol the leve of water in the sump-- (The pool of water the wheel runs the mat thru--
Possibly the valve shutting off, could make a plumbing BANG-- you could duplicate that, by lifting the float mechanism and stopping the water-- does that make the noise?

If you can reach and operate the Humidistat control from near the humidifier, do so a few time-- or Have someone cycle the humidistat a few times, and you listen for that sound--
Is it in the humidifier itself, or the duct work nearby?

It might be that the humidistat wheel scrapes against the side of the sheet metal duct work? -- Sounds travel a long ways in metal duct work!

Let us know if this helps

Mack B

Hello,Make sure the heating blower/fan is running when you turn the dial as the humidifier might not have power if there is no heating blower operation.

Turn the unit off and disconnect from the electrical
outlet.
2. Remove the tank from the housing.
3. Unlock the housing from the base by turning the lock
knob to the unlocked position.
4. Lift the housing straight up and place to the side.
5. Unlock the wick holder from the base by turning the lock
knob to the unlocked position.
6. Remove the wicks from the wick holder.
7. Follow the weekly cleaning instructions.
8. Insert new filters into the wick holder and lock the wick
holder back onto the base.
9. Replace the housing onto the base and lock it into place.
10. Fill the tank and place back into housing.
11. Repeat Operating Instructions.
It will take about 30 minutes for the humidifier to reach

lift the frontup2 inches should drain out back if not blocked
thumbs up

To replace the filter, follow the steps below
1. Turn the unit off and disconnect from the electrical outlet.
2. Remove the reservoir from the housing.
3. Unlock the housing from the base by turning the lock
knob to the unlocked position
4. Lift the housing straight up and place to the side
5. Unlock the wick holder from the base by turning the
lock knob to the unlocked position
6. Remove the wicks from the wick holder
7. Follow the weekly cleaning instructions.
8. Insert new filters into the wick holder and lock the wick
holder back onto the base.
9. Replace the housing onto the base and lock it into
place.
10.Fill the reservoir and place back into housing.
11.Repeat Operating Instructions It will take about 30 minutes
for the humidifier to reach maximum output. You
can purchase replacement filters (model BWF100 filters)
at your local retailer, by calling 1-800-253-2764, filling
out the accessory card, or by visiting
www.bionaire.com. It is recommended that a
replacement filter is purchased for uninterrupted use.

Here is a link for the manual for your humidifier:
http://www.appliancefactoryparts.com/content/pdfs/117223.pdf

Good Luck.

It doesn't sound like it has failed.

The whole point of the % setting is so that the room holds at that %. When the humidity drops lower than, it will kick in. When it raises to that number it will turn off.

If the on and off is bugging you try raising the percentage. Or lower the temperature of your house. Heating will dry out the air and cause your machine to kick in.

Good Luck.

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.