DescriptionThis video provides step-by-step repair instructions for replacing the contactor on a Goodman central air condensing unit. The most common reason for replacing this part is if the unit does not cool or is not running at all.
All of the information for this replacement video is applicable to the following brands: Goodman
Step-By-Step Instructions1
To replace the contactor in this goodman central air condensing unit…
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… you will need a 5/16th inch nut driver and a flat-head screwdriver.
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Before you begin, shut off the power to the unit.
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You can do this by removing the fuses from the disconnect box…
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…or switching off the circuit breaker.
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Shut off the power to the furnace as well.
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Use the 5/16th inch nut driver to unthread the two lower screws securing the control box access cover.
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Loosen the two upper screws directly above the access cover so you can pull the cover down to remove.
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Note the orientation of the wires connected to the contactor.
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Use the flat-head screwdriver to loosen the screws securing the main power wires enough to release the two wires.
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Detach the remaining wires.
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Using the 5/16th inch nut driver, unthread the two mounting screws to fully remove the old contactor.
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To install the new contactor…
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… align it on the control box panel…
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… and thread the two mounting screws.
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Attach the two black fan motor and compressor wires to the appropriate terminals…
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… as well as the two red compressor and capacitor wires.
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Attach the yellow and blue thermostat wires to the appropriate side terminals.
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Insert the two power wires and tighten the screws to secure.
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Reposition the access cover…
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… and replace the two lower screws.
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Tighten the two upper screws.
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Restore power to the unit…
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… and the central air condensing unit should be ready for use.