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Aprilaire
Humidifier

Model # 112 Official Aprilaire humidifier

Here are the diagrams and repair parts for Official Aprilaire 112 humidifier, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 33 parts  |
Transformer 4010

#NI

All parts diagram

Transformer

Part #4010

The manufacturer no longer makes this part, and there's no substitute part

Humidistat 4258
#26

Model 112 diagram

Humidistat

Part #4258

The manufacturer no longer makes this part, and there's no substitute part

Valve Sadd 4001
#1

Model 112 diagram

Valve sadd

Part #4001

The manufacturer no longer makes this part, and there's no substitute part

Wick Pad 12
#7

Model 112 diagram

Wick pad

Part #12

The manufacturer no longer makes this part, and there's no substitute part

Motor 4011
#9

Model 112 diagram

Motor

Part #4011

The manufacturer no longer makes this part, and there's no substitute part

Lwr Housng 4020
#15

Model 112 diagram

Lwr housng

Part #4020

The manufacturer no longer makes this part, and there's no substitute part

Motor Mounting Plate 4024
#16

Model 112 diagram

Motor mounting plate

Part #4024

The manufacturer no longer makes this part, and there's no substitute part

Disconnect 4014
#11

Model 112 diagram

Disconnect

Part #4014

The manufacturer no longer makes this part, and there's no substitute part

Copper Tube 4022
#6

Model 112 diagram

Copper tube

Part #4022

The manufacturer no longer makes this part, and there's no substitute part

Valve 4005
#4

Model 112 diagram

Valve

Part #4005

The manufacturer no longer makes this part, and there's no substitute part

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