Welcome to our Aprilaire, Bryant, Carrier Humidifier
Parts Page! We have a Humidifier Troubleshooting Section.
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Having
a problem with your humidifier?
Below
are listed some procedures for troubleshooting humidifier water problems:
I see problems ever now and then with humidifiers where the water will not
flow, or the water will not stop running, even when the humidifier is turned
off. In many cases it could be a bad water solenoid valve. Check the following
before condemning the water solenoid valve.
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Make sure the water saddle valve is not restricted by turning the saddle
valve on. Loosen the compression nut slightly where the 1/4" copper
tubing enters the saddle valve. If water comes out then your saddle valve is
not clogged, and is OK. If there is no water coming out then you will need
to replace your saddle valve.
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Take the compression nut loose on the end of the solenoid valve that
exits up to the water distribution tray (not the end where the water supply
copper tube enters). After you take the tube off you should see a tiny plastic orifice up inside the tubing. Lots of time I see the orifice stopped
up with lime deposits. The orifices are sold below. This will definitely cause the water to not flow in
your humidifier. You can take a thin needle and reopen the hole or purchase
another orifice to eliminate this problem.
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If you water flow continuously and will not shut off when the blower
stops you probably need a new water solenoid valve. You can check to see if
it is the solenoid valve or an electrical malfunction problem by turning
your furnace power off or unplug your humidifier. If the water continues to
flow with the power off then you definitely need one of the valves listed
below. |
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If you have more questions about your humidifier you might want to visit
Aprilaire's Humidifiers Frequently Asked Questions Page.
Please click here if you want to visit Aprilaire's Humidifiers Frequently Asked Questions Page.
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Below we have the most common Aprilaire, Bryant, &
Carrier parts & supplies
Aprilaire Model #4040 Water Solenoid
Valve:
The Aprilaire Model 4040 Water Solenoid valve pictured below is the exact
replacement valve for Aprilaire Humidifier Models: 220, 224, 400, 440, 550, 558 560, 568,
600, 700, 760
768:
*Please note, this
is a 24 volt valve. 4040 valve comes with a 4004 strainer installed in the inlet
side of valve.
Aprilaire Model 4005 Water Solenoid
Valve:
The Aprilaire Model 4005 Water Solenoid valve pictured below is the exact
replacement valve for Aprilaire Humidifier Models: 110 & 112:
Please note, this
is a 120 volt valve:
Bryant Carrier Humidifier Water
Solenoid Valve EF18LJ241:
The Water Solenoid Valve pictured below replaces many
solenoid valves on Bryant humidifiers. The part number is EF18LJ241
Please note, this
is a 24 volt DC valve used on many Bryant and Carrier Humidifiers. Bryant
Carrier Humidifiers have a rectifier that changes the voltage from AC to DC
volts. The rectifier is located in the plug, where the plug, plugs into the
solenoid valve.
Aprilaire Water Restrictor Orifices:
Below are pictured, with an opportunity for you to purchase the water
restrictor orifices that are the problem many times when your humidifier is not
getting water up to the water distribution tray. I would say 90% of the time this
little orifice being stopped up is the reason for your humidifier not getting
water up to the water distribution tray. There are four different colored
restrictors depending on which model humidifier you own. Below is an exploded
pictorial picture, part by part break down of how the water supply system looks
on Aprilaire models 110, 220, 112, 224, 330, 350, 360, 440, 560, 760 and 550. You can see how small the orifices actually
are. You can see how easily these things
can become stopped up. We sell these in packs of 2.
*A note about
UPS shipping: Sorry, but UPS does not figure ounces. If a part weighs 2
ounces, UPS considers it as weighing one pound. If the box and part weigh 1lb. 2
ounces, UPS considers it as weighing 2 lbs. You might want to add some other
items so you can get your pound's worth! I am sorry about the shipping these
orifices most certainly do not weigh a pound, but that is what I am charged.
 
Aprilaire RP4004 Water Line Strainer
Another problem that could cause water not to flow in your humidifier would
be the water line filter strainer stopped up. The water line strainer is letter
"C" in the picture below. The RP4004 Water Line Strainer fits many
Aprilaire humidifier models. Some of the Aprilaire humidifier models that the
4004 fits are: 550, 400, 600, 700, 760, 760A, 768, 440, 350, 112, & 110. In
fact I do not see any of the Aprilaire humidifiers that it doesn't fit! Below is an picture with an opportunity for
you to purchase. Thank You! We would appreciate you business!
Sorry, No Returns on Electrical,
Electronic Products Once they Have Been Installed.
Please see our return policy.
Aprilaire #4016 Humidistat
Our next humidistat is the Aprilaire Model #4016. This is a regular analog
humidistat that comes with the Aprilaire 550 humidifiers and many other
Aprilaire humidifiers. This humidistat comes with installation instructions.
Aprilaire Part #4039 Return Duct Adapter Plate
This adapter plate allows you or your contractor
to install the 4016 humidistat into the return air ductwork of your
heating/cooling system. It holds the base of the humidistat in the air stream
for proper monitoring of the level of humidity in your home.
For use with Aprilaire models: 110, 112, 220, 224, 440, 445, 445A, 448, 550,
560, 560A, 760 & 760A
Self Tapping Water Saddle Valve
*If you loosen the compression nut that goes into your water solenoid
valve and no water comes out then there is a good possibility that you
need a new saddle valve. The saddle valve has become stopped up with lime
deposits or debris.
Please make
sure your main water supply is turned off in your home, and the pressure is
relieved from the pipes by opening a faucet or two before you attempt to remove
the saddle valve. You will get an unexpected shower and a mess if you don't turn
off the main water supply and relieve the pressure.
Below is a picture of one of my favorite saddle valves with an opportunity for
you to purchase. I especially like it because it is already screwed into the
base and ready to go! No pipe dope needed to keep it from leaking!
Aprilaire Humidifier Transformer Part
#4010
Aprilaire Scale Control Insert Part #4236
This is the u-shaped component which surrounds the
Water Panel Evaporator. The purpose of the Scale Control insert is to direct any
mineral which builds up, back into the evaporative panel and prevent water
from leaving the evaporative section and entering another portion of the
humidifier. Below we have a picture with an opportunity for you to purchase.
The insert is for use with Aprilaire models: 560, 560A, 568, 700, 760,
760A & 768
Evaporative
Pad Not Included:
The
Scale control insert is the black frame surrounding the pad.
Please
Click Here if you need Aprilaire humidifier water panels.
Aprilaire Water Distribution Tray Part #4246
Another part that many people have requested that I add is the Water
distribution tray Part #4246 for Aprilaire 700, 768, 760A and 760 humidifier.
Below is a picture with an opportunity for you to purchase.
The white sandy coating that is inside the distribution tray has been
replaced by Aprilaire, Research Products, with a black mesh material. This mesh
material is used to promote better water distribution in the tray.
Above top view of Tray:
Aprilaire Circuit Board 4238 for Aprilaire Humidifier
models 760, 768, 760A & 700 This circuit board comes with installation
instructions.
Sorry, No Returns on Electrical,
Electronic Products Once they Have Been Installed.
Please see our return policy.
Aprilaire
Water Distribution Tray Part #4218
Our next Aprilaire humidifier part is the Water distribution tray Part #4218
for Aprilaire 550, 550A& 558 humidifiers. Below is a picture with an opportunity
for you to purchase. The white sandy coating that is inside the distribution
tray has been replaced by Aprilaire, Research Products, with a black mesh
material. This mesh material is used to promote better water distribution in the
tray.
Aprilaire Drain Spud Part # 4223
Sorry, No Returns on Electrical,
Electronic Products Once they Have Been Installed.
Please see our return policy.
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