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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Model diagram and schematic

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Showing 10 of 33 parts  |

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

Humidistat 4258
#26

Model 112 diagram

Humidistat

Part #4258

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

Transformer 4010

#NI

All parts diagram

Transformer

Part #4010

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

Bracket 4030
#21

Model 112 diagram

Bracket

Part #4030

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

Orifice 4021
#5

Model 112 diagram

Orifice

Part #4021

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

Swing Lock Set (6 Sets/ctn.) 4034
#24

Model 112 diagram

Swing lock set (6 sets/ctn.)

Part #4034

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

Screw And Clip Set 4027
#18

Model 112 diagram

Screw and clip set

Part #4027

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

Tube-drain 4047

#NI

All parts diagram

Tube-drain

Part #4047

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