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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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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

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

Valve 4040
#4

Model 220 diagram

Valve

Part #4040

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

Water Distribution Pan Cover 4043
#11

Model 220 diagram

Water distribution pan cover

Part #4043

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

Screw And Clip Set 4027
#16

Model 220 diagram

Screw and clip set

Part #4027

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

Closure Clip Set 4050
#14

Model 220 diagram

Closure clip set

Part #4050

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

Replacement Kit 4038

#NI

All parts diagram

Replacement kit

Part #4038

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

Symptoms for gas ranges

Why won't my range's gas burner spark or ignite?

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Why isn't my range's gas burner heating properly?

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Repair guides for gas ranges

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How to replace a range spark igniter switch

How to replace a range spark igniter switch

Follow these steps to replace the spark igniter switch—sometimes called a burner switch or spark switch—on a gas or dual…

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Repair difficulty
Time required
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