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Aprilaire
Humidifier

Model # 110 Official Aprilaire humidifier

Here are the diagrams and repair parts for Official Aprilaire 110 humidifier, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 32 parts  |
Wick Pad 10
#7

Model 110 diagram

Wick pad

Part #10

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

Humidistat 4258
#26

Model 110 diagram

Humidistat

Part #4258

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

Motor 4011
#9

Model 110 diagram

Motor

Part #4011

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

Copper Tube 4008
#6

Model 110 diagram

Copper tube

Part #4008

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

Screw And Clip Set 4027
#18

Model 110 diagram

Screw and clip set

Part #4027

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

Orifice (144/ctn. 12-12pks.) (orifice 4007-white-4201-red) 4007
#5

Model 110 diagram

Orifice (144/ctn. 12-12pks.) (orifice 4007-white-4201-red)

Part #4007

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

Relay 4012

#NI

All parts diagram

Relay

Part #4012

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

O-ring 4006
O-ring

Part #4006

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

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