Question: How To Test Fridge Relay?

How do you know if your refrigerator relay is bad?

The Shake and Rattle Test Unplug the start relay from the compressor and give it a shake. If you can hear rattling on the inside of the start relay, then the part is bad and will have to be replaced. If it’s not rattling and appears to be in good condition, you may have a problem with the actual compressor.

Can you bypass refrigerator relay?

Use a flathead screwdriver to press down on the space between the relay and its casing. Then, press on the relay itself and pull it out to remove it from the refrigerator. Using electrical tape, connect both ends of the wire back to the relay housing so it completely bypasses the missing relay and closes the circuit.

How do you bypass the start relay on a refrigerator?

Push the metal box at the right-lower rear of your fridge and detach it from the unit. When the metal box is removed, you will see the relay system fixed inside. Now, carefully grab a flathead screwdriver to press the space between the relay and its case, and pull the relay out.

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What causes a refrigerator start relay to go bad?

Electrical Surge Refrigerator relays protect the fridge from electrical damage. An electrical surge can be one reason that a relay will fail and overload. When the resistance of the wire impedes the electrical current, the wires can become hot and begin to melt. An electrical surge can cause this to occur.

What does a relay switch do in a refrigerator?

The overload relay is a protection device used in the compressor circuit on your refrigerator. Power is applied to the compressor motor windings through the overload device, and the relay is used to add the start winding in the circuit until the compressor is at running speed.

How does a refrigerator start relay work?

A refrigerator start relay is a device that jump-starts the compressor inside the refrigerator. If the refrigerator start relay is burned out, then the compressor may not work and the interior will not freeze.

How do I know if my compressor is thermal overload?

Looking at the wiring schematic of a compressor, you will see there is a thermal overload in the common circuit. When the overload opens, you will not get continuity between the common terminal and the R or S terminals. During the process of checking continuity, the tech did notice the compressor to be hot.

What is thermal overload on a compressor?

When a compressor is tripping and very hot the term used is: thermal overload. The outside coil is dirty or folded over so that the system has trouble rejecting heat, this causes the compressor to have to work harder and hence get warmer.

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