How do I know if my start relay is bad?

Common signs include the compressor humming but not starting, a clicking sound from the compressor area, or the refrigerator not cooling. A multimeter can be used to test for continuity across the relay's terminals to confirm a failure.

Can a bad start relay damage the compressor?

While a bad start relay primarily prevents the compressor from starting or running correctly, prolonged attempts to start a compressor with a faulty relay can put stress on the compressor motor. It is best to replace a failing relay promptly to prevent potential secondary issues.

Is it safe to replace a compressor start relay myself?

Replacing a compressor start relay involves working with electrical components near the compressor. If you are uncomfortable working with electrical components, consider professional assistance.

Frigidaire Compressor Start Relay Replacement

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5304529507 Refrigerator Start Relay and Overload - Compatible with Frigidaire FFTR1814WB1 FFTR1814WB2 FFTR1814WW1 FFTR1820VB0 - Replaces AP7

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What the 5304529507 does

The compressor start relay provides a momentary power boost to help the refrigerator compressor motor begin its cycle. It then disengages once the compressor is running.

Symptoms when this part fails

Refrigerator not cooling
Compressor hums but does not start
Clicking sound from compressor area
Refrigerator cycles on and off too frequently
Refrigerator runs constantly

Compatibility

Fits the Frigidaire family. Specifically:

Any unit originally equipped with OEM part number(s): AP7033330.
Check the model/rating plate inside your appliance and compare it against the fitment table on the product listing before ordering — this guide does not list specific compatible models because Amazon does not provide verified fitment data through this pipeline.

Also replaces: AP7033330

Tools you'll need

Nut driver set
Screwdriver set
Needle-nose pliers
Multimeter (optional)

Difficulty: Moderate · Time: 30-60 minutes

How to install the 5304529507, step by step

Disconnect refrigerator from power outlet.
Pull refrigerator away from wall and remove rear access panel.
Locate the compressor and the attached start relay.
Carefully disconnect wires and remove the old start relay from the compressor terminals.
Attach the new start relay onto the compressor terminals.
Reconnect all wires to the new relay.
Replace the rear access panel and push refrigerator back into place.
Restore power to the refrigerator.

Related troubleshooting

If swapping this part doesn't fix the issue, check these next: