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Aprilaire
Humidifier

Model # 350 Official Aprilaire humidifier

Here are the diagrams and repair parts for Official Aprilaire 350 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 31 parts  |
Humidistat 4258
#28

Model 350 diagram

Humidistat

Part #4258

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

Wick Pad 35
#3

Model 350 diagram

Wick pad

Part #35

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

Valve Sadd 4001
#24

Model 350 diagram

Valve sadd

Part #4001

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

Bushing 4197
#23

Model 350 diagram

Bushing

Part #4197

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

Adapter 4201
#26

Model 350 diagram

Adapter

Part #4201

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

Box-jnctn 4194
#18

Model 350 diagram

Box-jnctn

Part #4194

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

Tubing And Plastic Barrel 4192
#16

Model 350 diagram

Tubing and plastic barrel

Part #4192

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

Adptr-vlv 4229
#30

Model 350 diagram

Adptr-vlv

Part #4229

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

Bracket 4202
#27

Model 350 diagram

Bracket

Part #4202

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

Fan Blade 4188
#10

Model 350 diagram

Fan blade

Part #4188

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

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