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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

Valve Sadd 4001
#1

Model 220 diagram

Valve sadd

Part #4001

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

Replacement Kit 4038

#NI

All parts diagram

Replacement kit

Part #4038

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

Pump Assembly/motor Board 4009
#8

Model 220 diagram

Pump assembly/motor board

Part #4009

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

Compression Fitting (6) 4002
#2

Model 220 diagram

Compression fitting (6)

Part #4002

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

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

Model 220 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

Valve 4040
#4

Model 220 diagram

Valve

Part #4040

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

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