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Model # GU040M12A Official Thermal Zone gas furnace
Here are the diagrams and repair parts for Official Thermal Zone GU040M12A gas furnace, as well as links to manuals and error code tables, if available.
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Browse Parts for
GU040M12A Gas Furnace
#11
90+ upflow condensing furnace diagram
Kenmore furnace electronic control board
Part #903106
The manufacturer no longer makes this part, and there's no substitute part
#6
90+ upflow condensing furnace diagram
Blower wheel
Part #667251
The manufacturer no longer makes this part, and there's no substitute part
#16
90+ upflow condensing furnace diagram
Orifice
Part #661045
The manufacturer no longer makes this part, and there's no substitute part
#27
90+ upflow condensing furnace diagram
Furnace vent limit switch, 160-degree
Part #626461
The manufacturer no longer makes this part, and there's no substitute part
#23
90+ upflow condensing furnace diagram
Central air conditioner air handler drain pan connector
Part #663714
The manufacturer no longer makes this part, and there's no substitute part
#15
90+ upflow condensing furnace diagram
Sensor rod
Part #632316
The manufacturer no longer makes this part, and there's no substitute part
#13
90+ upflow condensing furnace diagram
Gas valve
Part #624586
The manufacturer no longer makes this part, and there's no substitute part
#3
90+ upflow condensing furnace diagram
Transformer
Part #621486
The manufacturer no longer makes this part, and there's no substitute part
#19
90+ upflow condensing furnace diagram
Furnace temperature limit switch
Part #626425
The manufacturer no longer makes this part, and there's no substitute part
#18
90+ upflow condensing furnace diagram
Pressure swt
Part #632252
The manufacturer no longer makes this part, and there's no substitute part
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Main causes: frozen or clogged defrost drain tube, cracked water system tubing…
Repair guides for top-mount refrigerators
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How to replace a refrigerator water valve
Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…
Repair difficulty
Time required
15 minutes or less
![How to replace the compressor run capacitor in a top-freezer refrigerator](https://images.ctfassets.net/fpe0ec7r30ix/550tDQp4eASRJilbMBPhru/0d628f3723f9ee6fba94e9154a6cb4b4/RG-REF-replace-compressor-run-capacitor-on-top-freezer-fridge-intro-image.jpg?fm=png&w=270&h=270)
How to replace the compressor run capacitor in a top-freezer refrigerator
The run capacitor sends electric current to the compressor motor to help the motor run efficiently. Replace the run capa…
Repair difficulty
Time required
15 minutes or less
![How to replace the defrost thermistor in a top-freezer refrigerator](https://images.ctfassets.net/fpe0ec7r30ix/3POSXOCd4wlcWJWHiGLndS/5b8325c6df9b7696691b0eaa420ab7f0/RG-REF-replace-defrost-thermistor-in-top-freezer-fridge-intro-image.jpg?fm=png&w=270&h=270)
How to replace the defrost thermistor in a top-freezer refrigerator
The defrost thermistor attaches to the evaporator coil and measures the evaporator coil temperature during defrost.…
Repair difficulty
Time required
15 minutes or less
Effective articles & videos to help repair your furnaces
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Get expert tips for preparing your furnace for winter. Follow maintenance tips to keep your furnace in top shape.…
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Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…
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