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GMC GUS075-3 gas furnace Parts
Here are the diagrams and repair parts for GMC GUS075-3 gas furnace, as well as links to manuals and error code tables, if available.
Error CodesBy Schematic
SELECT DIAGRAM
Browse Parts for GUS075-3 Gas Furnace
Gas train diagram
Manifold, 5
Part #B18264-19
The manufacturer no longer makes this part, and there's no substitute part
Casing diagram
Casing Assembly
Part #18161-40S
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Flue Rstrctr
Part #18248-12S
The manufacturer no longer makes this part, and there's no substitute part
Gas train diagram
Burner Assembly
Part #B18225-12
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
Gas train diagram
Manifold, 4
Part #B18264-18
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Secondary Air Door (gus075-3)
Part #18820-07
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
Heat exchanger assembly diagram
Heat Exchange
Part #18212-28S
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
Symptoms for window air conditioners
Choose a symptom to see related window air conditioner repairs.
Main causes: clogged drain hole, air conditioner not leveled properly…
Main causes: clogged condensate drain, air conditioner not leveled properly, leaky window air seals …
Main causes: lack of electrical power, bad electronic control board, wiring failure, bad temperature sensor…
Main causes: dirty air filter, air conditioner is too small for the room, temperature set too cold, control failure…
Main causes: turning the air conditioner off and the back on too quickly, dirty or restricted condenser coil, compressor…
Main causes: bad compressor, lack of refrigerant, bad compressor start relay, electronic control board failure…
Repair guides for window air conditioners
These step-by-step repair guides will help you safely fix what’s broken on your window air conditioner.
How to replace a window air conditioner user interface control board
Control buttons or lights on the user interface control board can stop working. This repair guide shows how to replace i…
Repair time and Difficulty
30 minutes or less
How to replace a window air conditioner condenser fan
If the condenser fan blade is broken or the condenser fan motor won’t run, you can replace the broken parts yourself by…
Repair time and Difficulty
90 minutes or less
How to replace a window air conditioner ambient thermistor
If your window air conditioner isn’t cooling properly, it might need a new ambient thermistor. You can replace it yourse…
Repair time and Difficulty
45 minutes or less
Effective articles & videos to help repair your furnaces
Use the advice and tips in these articles and videos to get the most out of your window air conditioner.
Get expert tips for preparing your furnace for winter. Follow maintenance tips to keep your furnace in top shape.…
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