Model # 440 Official Aprilaire humidifier

Here are the diagrams and repair parts for Official Aprilaire 440 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 |

#11

Model 440 diagram

Transformer

Part #4010

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

Model 440 diagram

Wick pad

Part #12

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

Model 440 diagram

Valve sadd

Part #4001

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

Model 440 diagram

Tube

Part #4079

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

Model 440 diagram

Compression fitting (6)

Part #4076

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

#18

Model 440 diagram

Stainer

Part #4004

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

#14

Model 440 diagram

Cover-top

Part #4162

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

#13

Model 440 diagram

Frame

Part #4171

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

Model 440 diagram

Compression fitting and strainer (6)

Part #4003

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

Model 440 diagram

Knob

Part #4166

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

Repair guides for side-by-side refrigerators

How to replace a foamed-in-place door gasket in a side-by-side refrigerator

The door gasket seals the gap around the door to keep the cold air in and the warm air out. Replace a worn or damaged do…

Repair difficulty

Time required

30 minutes or less

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty

Time required

15 minutes or less

How to replace a defrost sensor in a side-by-side refrigerator

If frost is building up in the freezer of your side-by-side refrigerator, the defrost sensor could be at fault. You can …

Repair difficulty

Time required

45 minutes or less

Articles and videos for side-by-side refrigerators

How to Replace the Water Filter in a GE Refrigerator

Model # 440 Official Aprilaire humidifier

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Repair guides for side-by-side refrigerators

How to replace a foamed-in-place door gasket in a side-by-side refrigerator

How to replace a refrigerator water valve

How to replace a defrost sensor in a side-by-side refrigerator

Articles and videos for side-by-side refrigerators

How to Replace the Water Filter in a GE Refrigerator

How to Replace the Water Filter in a Maytag Refrigerator

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