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Aprilaire
Humidifier

Model # 220 Official Aprilaire humidifier

Here are the diagrams and repair parts for Official Aprilaire 220 humidifier, as well as links to manuals and error code tables, if available.

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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 22 parts  |
Transformer 4010
#9

Model 220 diagram

Transformer

Part #4010

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

Wick Pad 10
#7

Model 220 diagram

Wick pad

Part #10

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

Valve Sadd 4001
#1

Model 220 diagram

Valve sadd

Part #4001

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

Stainer 4004
#17

Model 220 diagram

Stainer

Part #4004

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

Tube 4041
#6

Model 220 diagram

Tube

Part #4041

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

Compression Fitting And Strainer (6) 4003
#3

Model 220 diagram

Compression fitting and strainer (6)

Part #4003

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

Lower Housing 4048
#13

Model 220 diagram

Lower housing

Part #4048

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

Strainer For Bullet Shaped Solenoid Valve 4103

#NI

All parts diagram

Strainer for bullet shaped solenoid valve

Part #4103

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

Upper Housing 4045
#12

Model 220 diagram

Upper housing

Part #4045

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

Parts & More