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Aprilaire 550 humidifier Parts
Here are the diagrams and repair parts for Aprilaire 550 humidifier, as well as links to manuals and error code tables, if available.
Owner’s manual
By Schematic
SELECT DIAGRAM
Browse Parts for 550 Humidifier
Model 550 diagram
Orifice
Part #4231
The manufacturer no longer makes this part, and there's no substitute part
Model 550 diagram
Compression Fitting (6)
Part #4076
The manufacturer no longer makes this part, and there's no substitute part
Model 550 diagram
Cover
Part #4222
The manufacturer no longer makes this part, and there's no substitute part
Model 550 diagram
Panel
Part #4221
The manufacturer no longer makes this part, and there's no substitute part
Model 550 diagram
Feed Tube With Compression Sleeve
Part #4226
The manufacturer no longer makes this part, and there's no substitute part
Model 550 diagram
Insert
Part #4217
The manufacturer no longer makes this part, and there's no substitute part
Model 550 diagram
Drain
Part #4223
The manufacturer no longer makes this part, and there's no substitute part
Model 550 diagram
Water Tray
Part #4218
The manufacturer no longer makes this part, and there's no substitute part
#NI
All parts diagram
Current Sensing Relay
Part #50
The manufacturer no longer makes this part, and there's no substitute part
#NI
All parts diagram
Temperature Compensating Humidistat
Part #55
The manufacturer no longer makes this part, and there's no substitute part
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Repair time and Difficulty
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Repair time and Difficulty
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