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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 manualBy Schematic
SELECT DIAGRAM
Browse Parts for 550 Humidifier
Model 550 diagram
Wick Pad
Part #10
The manufacturer no longer makes this part, and there's no substitute part
Model 550 diagram
Transformer
Part #4010
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
Model 550 diagram
Nozzle
Part #4184
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
Model 550 diagram
Cover Latch Spring
Part #4225
The manufacturer no longer makes this part, and there's no substitute part
Model 550 diagram
Compression Fitting And Strainer (6)
Part #4003
The manufacturer no longer makes this part, and there's no substitute part
#NI
All parts diagram
Adptr-vlv
Part #4229
The manufacturer no longer makes this part, and there's no substitute part
Model 550 diagram
Base
Part #4219
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
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