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GMC GMN120-5 gas furnace

GMC GMN120-5 gas furnace Parts

Here are the diagrams and repair parts for GMC GMN120-5 gas furnace, as well as links to manuals and error code tables, if available.

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Browse Parts for GMN120-5 Gas Furnace

  • Switch Bracket for GMC GMN120-5 - Part 28095-00

    Heat exchangers/misc.electrical diagram

    Switch Bracket

    Part #28095-00

    The manufacturer no longer makes this part, and there's no substitute part

  • Rear Air Baf for GMC GMN120-5 - Part 28162-04

    Heat exchanger diagram

    Rear Air Baf

    Part #28162-04

    The manufacturer no longer makes this part, and there's no substitute part

  • Cover for GMC GMN120-5 - Part 25155-00

    Heat exchanger diagram

    Cover

    Part #25155-00

    The manufacturer no longer makes this part, and there's no substitute part

  • 6 Cl, Burner for GMC GMN120-5 - Part 25135-04

    Heat exchangers/misc.electrical diagram

    6 Cl, Burner

    Part #25135-04

    The manufacturer no longer makes this part, and there's no substitute part

  • Furnace Blower Shell for GMC GMN120-5 - Part 25393-00

    Heat exchanger diagram

    Furnace Blower Shell

    Part #25393-00

    The manufacturer no longer makes this part, and there's no substitute part

  • Screw for GMC GMN120-5 - Part B13935-13

    Heat exchangers/misc.electrical diagram

    Screw

    Part #B13935-13

    The manufacturer no longer makes this part, and there's no substitute part

  • Gasket 6cell for GMC GMN120-5 - Part B28326-03

    Heat exchanger diagram

    Gasket 6cell

    Part #B28326-03

    The manufacturer no longer makes this part, and there's no substitute part

  • Furnace Air Pressure Switch for GMC GMN120-5 - Part B13701-50

    Heat exchangers/misc.electrical diagram

    Furnace Air Pressure Switch

    Part #B13701-50

    The manufacturer no longer makes this part, and there's no substitute part

  • Front Gskt for GMC GMN120-5 - Part B28325-07

    Heat exchangers/misc.electrical diagram

    Front Gskt

    Part #B28325-07

    The manufacturer no longer makes this part, and there's no substitute part

  • Side Air Baf for GMC GMN120-5 - Part 28162-00

    Heat exchanger diagram

    Side Air Baf

    Part #28162-00

    The manufacturer no longer makes this part, and there's no substitute part

Symptoms for electric water heaters

Main causes: thermostats need adjustment, bad heating elements, faulty thermostats, tank sediment build-up, broken dip t…

Main causes: excessive tank sediment, high voltage supply…

Repair guides for electric water heaters

How to replace a water heater element

How to replace a water heater element

If your water heater runs out of hot water quickly and one of the two heating elements has failed, replace the element f…

Repair time and Difficulty

 30 minutes or less
How to replace a water heater temperature and pressure (T&P) relief valve

How to replace a water heater temperature and pressure (T&P) relief valve

Replace a broken temperature/pressure (T&P) relief valve on an electric water heater using these instructions.…

Repair time and Difficulty

 15 minutes or less
How to replace an electric water heater thermostat

How to replace an electric water heater thermostat

If the water temperature fluctuates or you don't get enough hot water, follow these instructions to replace your water h…

Repair time and Difficulty

 30 minutes or less

Effective articles & videos to help repair your furnaces

How to get your furnace ready for winter

How to get your furnace ready for winter

Get expert tips for preparing your furnace for winter. Follow maintenance tips to keep your furnace in top shape.…

2023 HVAC regulation changes and how they may affect you

2023 HVAC regulation changes and how they may affect you

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