Welcome to Our Aprilaire 400
Repair Parts & Supplies Page!
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& Prosperous 2008!
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Humidifier Water Panels should be replaced annually.
Aprilaire Humidifiers have very few problems. Some problems
occur because of neglect to do improper maintenance. If you ever need any
parts for your humidifier we have them or can get them. All parts listed on this
page are in stock.
Below we have many of the parts and
supplies that you need to keep your Aprilaire 400 Humidifier in top working
condition!

The Aprilaire Stock #45 Evaporative Media Pad Below fits
Aprilaire Humidifier Model: #400
It is recommended that you replace the Aprilaire 400
Humidifier Pads twice annually. That is why they are sold in twin packs of two.
Above Stock #45 Panels are sold in twin packs.
Purchase them by the case of three twin
packs and save $6.00 That is Six Aprilaire Water Panels!

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:
This
is a 24 volt valve. 4040 valve comes with a 4004 strainer installed in the inlet
side of valve.


Aprilaire Part # 4231 Water Restrictor Orifices

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. Below is an picture with an opportunity for
you to purchase.


Aprilaire Model 400 Part #4407 Water
Distribution Tray


Aprilaire Model 400 Part #4403 Scale
Control Insert with Float Chamber


Aprilaire Model 400 Float Assembly Part
#4406


Aprilaire Model 400 Part #4410 Water
Level Sensor Assembly


Aprilaire Part #4335 Feed Tube With Compression Sleeve


Aprilaire Humidifier Transformer Part
#4010

Sorry, No Returns on Electrical,
Electronic Products Once they Have Been Installed.
Please see our return policy.

Supco 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! Pipe dope or Teflon tape is not needed to keep it from leaking.


Aprilaire 400
Complete Parts List:


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Sincerely,
Steve & Barbara Arnold
Address:
11506 Seatonville Road
Louisville, KY. 40291
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