How do I switch the honeywell hdh-132 to hose drainage after installing the hose connection? I followed the instructions in the manual, but the water is still collecting in the tank.

Maybe the hose is blocked. Take the hose off the supply side, and blow into just enough to add pressure to it and see if that works.

Try this site for more details or a similar issue:

Honeywell HE240 new install not working

Unless you are using a current sensing relay or sail switch, you need to get the humidifier power from the blower motor supply so it only operates when the blower is on.

Since you can manually control the humidifier, there is not a fault with the solonoid.

Yes - but it doesn't have to work that way. There are several methods you can use to have the humidifier run only when the furnace runs. Look on the back page of the installation instructions. The method I chose was to install a sail switch. This is a switch with a arm attached which has a "sail' attached to it. When the furnace blower runs, the sail catches the blower airflow and activates the switch; allowing the humidifier to operate.
You can also wire in a current sensing relay (figure 6 on the instructions) or connect the humidifier directly into the furnace motor ignition box (if so equipped. My furnace dates to the late 70's and has no place to plug in a humidifier; which is why I installed a sail switch.)
Now however I probably would go with the current sensing relay option as this looks to be the easiest route to follow. Honeywell has their 32001754-001 avaliable for less than $35 from Sears.

Keeping the humidity level in your home below 50% will greatly decrease mold growth. You can pour some bleach in the drainage tubing to clean it out and do it every three months to keep it clean


http://www.ehow.com/how_4798220_clean-honeywell-humidifier.html

http://www.forwardthinking.honeywell.com/related_links/humidification/truesteam/sell/50_9718.pdf

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.

These humidifiers need to be cleaned inside. They become clogged from minerals in the water.

push sail switch forward by hand to see if that is the problem.
Remove two wires at humidifier and connect them if it starts than it is in wiring, humidistat, or transformer.

these are flow thru models and a lot of water passes thru them. The instructions say to not limit the water by closing valve at all!

Maybe I can help. this is 24v so it doestn't matter which wire goes where so here goes. 2 wires from humidistat go to furnace, split one of the wires(not both) so they reach the yellow wires on the humidifier. with marettsconnect one of the split wires to one of the yellow wires. do the same to the other split wire and yellow wire. what you should get is one wire from humidistat to furnace then one wire from humidifier to humidistat and one from humidifier to furnace. hope this helps

I am having the same problem. I have had my humidifier for about 5 years now and I just started having the problem where the water continuously flows through the solenoid. I took apart the solenoid by removing the fittings from both sides. When I did that, I noticed that there was a hole in the metal that allowed me to see through to the other side. Apparently, it had corroded and and broken through, allowing the water to pass through the solenoid without really going through the valve within the solenoid. There are several sites that sell replacements for about $70, which is not cheap, but cheaper than buing a new humidifier for $120. Here is one site I found: http://www.iaqsource.com/product.php/honeywell/32001639-002/?product=112783&category=1142