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GMC GUPX050-3B gas furnace Parts
Here are the diagrams and repair parts for GMC GUPX050-3B gas furnace, as well as links to manuals and error code tables, if available.
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Browse Parts for GUPX050-3B Gas Furnace
Heat exchanger assembly diagram
Manifold Bra
Part #18159-01
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Power Vent H
Part #18812-08
The manufacturer no longer makes this part, and there's no substitute part
Gas train diagram
Manifold, 4
Part #B18264-02
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Secondary Ai
Part #18224-17
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Heat Exch Su
Part #18212-08S
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Heat Exch Su
Part #18212-11S
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Flue Restric
Part #18248-18
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger assembly diagram
Flue Restric
Part #18248-17
The manufacturer no longer makes this part, and there's no substitute part
Blower assembly diagram
Blwr Asm,ser
Part #18682-16S
The manufacturer no longer makes this part, and there's no substitute part
Symptoms for upright freezers
Main causes: clogged or frozen defrost drain tube…
Repair guides for upright freezers
How to replace a freezer electronic control board
The electronic control board manages the compressor to control freezer temperature. Replace the control board using the…
Repair time and Difficulty
45 minutes or less
How to replace a freezer thermistor
When the thermistor can’t sense the freezer temperature, the freezer is colder or warmer than the set temperature. Follo…
Repair time and Difficulty
45 minutes or less
How to replace a freezer door switch
When the door switch fails, the freezer can’t detect that the door is closed. Follow the steps in this repair guide to r…
Repair time and Difficulty
15 minutes or less
Effective articles & videos to help repair your furnaces
Get expert tips for preparing your furnace for winter. Follow maintenance tips to keep your furnace in top shape.…
Find out how new DOE standards going into effect in 2023 can affect you and what you need to do.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
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