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Janitrol GUN125-5B gas furnace Parts
Here are the diagrams and repair parts for Janitrol GUN125-5B gas furnace, as well as links to manuals and error code tables, if available.
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Browse Parts for GUN125-5B Gas Furnace
Gas train diagram
Pilot Assembly
Part #14010-03S
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Comb Box Frt
Part #18820-14
The manufacturer no longer makes this part, and there's no substitute part
Casing diagram
Furnace Blower Door
Part #18223-40
The manufacturer no longer makes this part, and there's no substitute part
Blower assembly diagram
Motor Mounting Bracket
Part #B13768-51
The manufacturer no longer makes this part, and there's no substitute part
Gas train diagram
Burner Assembly
Part #B18225-13
The manufacturer no longer makes this part, and there's no substitute part
Misc. electrical/hardware diagram
Rubber Coupl
Part #B18104-00
The manufacturer no longer makes this part, and there's no substitute part
Blower assembly diagram
Blwr Asm,ser
Part #18682-00S
The manufacturer no longer makes this part, and there's no substitute part
Casing diagram
Control Acce
Part #18813-11P
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Secondary Ai
Part #18820-06
The manufacturer no longer makes this part, and there's no substitute part
Casing diagram
Casing Assembly
Part #18161-38S
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
15 minutes or less
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Repair time and Difficulty
30 minutes or less
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