It seems that my home humidifier is not working. Here's what I know:
humidistat clicks on
There is a metal line that I believe is the water flow line that is disconnected and I have no idea how or where to connect it. When I turned the little bar handle, water does drop out of it.
I have an aprilaire 760.
Not sure what else to do.
On Wed, 16 Dec 2015 20:35:25 -0800 (PST), firstname.lastname@example.org
So the line is connected to one of your water pipes.
Apparently someone disconnected it from your humidifier. I can only
guess this was before you owned or leased this home.
Likely there was a reason to disconnect it. Probably it was overflowing
and making a mess.
If you cant see where it connects to the humidifier, (which should be
very obvious), you obviously dont know what to do, and I suggest calling
a furnace repair company. Connecting a water line to a humidifier is not
rocket science. And even if you do get it connected I bet it's not going
to work. If it did work, it would not have been disconnected. So, expect
water to run all over the floor.
There is usually a float valve in them, and they commonly seize up and
do not stop the flow of water, then they overflow....
On Thursday, December 17, 2015 at 3:43:19 AM UTC-5, email@example.com wrote:
Or worse it can run into the furnace, the electronics, before it gets
to the floor. If he hears the clicking, that's probably the solenoid
for the water valve. It's located at the bottom of the 760 housing.
There isn't much to go wrong, leak, etc with that model. Water line
is connected to that solenoid valve, from the output side there is a
rubber hose that goes up the side, to the top, where it connects to
a fitting that puts the water on top of a little tray gizmo that spreads
it out and it flows onto the media pad. The solenoid valve has a
tiny mesh strainer to filter any crap and a plastic orifice that sets
the flow. If the orifice was missing, I guess it could send in way
too much water and flood things.
I had a humidifier malfunction many years ago, it flooded the furnace and basement. one big mess.
I disconnected it and forgot about it.
it was one of those rotating pad units, that required my putting the rotating wheel with a foam pad in a bucket.
pad was clgged with a brown crud. a gallon og vinegar would foam up it was a mess.
and even after rinsing the air in the house got a vinegar odor.
be glad that humidifer was disconnected. call a pro if necessary
I had put one of these dehumidifiers in my first house and it was a mess
and a mess to clean. There was no water over flow and after a month or
so, I'd have to remove the pad to clean out the calcium deposit with
Now my Aprilaire 560 has no moving parts but drips water over a honey
comb, ceramic coated aluminum pad to evaporate in the furnace air. Pad
is rinsed by excess water and would probably last a few years but I
change it every year. Water drains into my French drain which can
handle it and in the Summer condensate from AC goes into same drain.
Never a problem.
Thread just got me to check it and it is working fine. It's as old as
the house, ~40 years.
Sounds like a totally successful dehumidifier.
Except, that it isn't. Oops.
==============================When I did HVAC installs, my boss used to really
love the flow through humidifiers. Wasted a little
water, but much lower maintenance.
I don't think it uses much water. It only goes on when the furnace is
on and it is only a trickle. My French drain has no sump pump and is
only wet for a few feet beyond the exit. Besides, with a well, I don't
pay for water.
On Friday, December 18, 2015 at 8:22:09 AM UTC-5, Frank wrote:
You can also throttle it back if you want to, by partially closing the
valve. AA tells you not to, but I've tried it and haven't seen any difference. It's also not just the water, but the fact that it's heated
water going down the drain. Still, I agree it doesn't amount to much.
I'd rather have a reliable, trouble-free design that uses some water,
than one that has to be cleaned more often, can grow mold, etc.
One heating company, we had to wash hands after
servicing the "minerals check in but not check
out" type of furnace humidifier. I'd like to have
cleaned em all out with bleach, but we didn't
stock bleach on the trucks.
On Friday, December 18, 2015 at 7:41:05 PM UTC-5, Frank wrote:
Whether you tap a hot water line or a cold water line doesn't matter.
The water going down the drain still winds up heated and at about the
same temperature whether heated by the water heater or by the furnace.
Years ago Sears used to sell furnace humidifier like that. Hobart brand.
It stayed always clean. Now with Aprilaire 600 I used to dunk the pad in
CLR but I got lazy. I just throw old pad out and put in a new one.
Unless they have designed something new, which I dont know about, NONE
of the built in (to furnace) humidifiers last very long. And if your
water is high in minerals, it's even worse. Not only are they a pain to
keep working and clean, but they can damage the furnace by causing rust
to the heat exchanger, and/or damage the electronics within the furnace.
I quit using them years ago. I just use a portable humidifier which
needs to be filled with a pail, and also needs maintenance and cleaning,
but cant cause flooding or damage your furnace. And if they go bad, you
just replace the whole unit and dont have to find something that fits
into the plenum.
On Thursday, December 17, 2015 at 5:28:55 PM UTC-5, firstname.lastname@example.org wrote:
I've had an Aprilaire for 10+ years with no problems. There isn't
anything in there that is inherently a high failure issue. It's
essentially a media element that water trickles over. The pads are a
maintenance item and need to be replaced when enough minerals have
accumulated, about every 2 years on mine. Mine is a powered one, with
a small fan motor, other bypass models have no motor. So, there really
isn't anything there to fail. Honeywell uses a similar design and
the same media element. IDK what design other companies use today.
Many decades ago there were types that used a rotating drum that went
through a container of water, kept filled by a float, etc. The
Aprilaire design is much better than that.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.