If your refrigerator isn’t cooling properly, a faulty start relay could be the cause. This small device helps the compressor start and run efficiently. When it fails, your fridge may stop working. Many homeowners in Appliance Repair San Diego cases find that checking the start relay early can save time and money.

In Appliance Repair San Diego, technicians often inspect the start relay when a refrigerator hums but doesn’t cool. You can test the start relay at home using a multimeter. With a few steps and some caution, you can figure out whether it needs replacement.

First, unplug the refrigerator from the power source. Safety comes first, and this step prevents any electrical accidents. Then, locate the start relay. It is usually found on the side of the compressor behind a back panel. You may need a screwdriver to remove the cover.

Once you find the relay, gently pull it off the compressor. It may be attached with a plastic cover or clip. Take a close look. If it rattles when shaken or smells burnt, that’s already a bad sign. But testing with a multimeter will confirm whether it still works.

To test it, set your multimeter to the “ohms” setting. Place one probe on each terminal of the start relay. A working relay should show continuity—usually between 3 to 30 ohms depending on the model. If the reading shows zero or infinite resistance, the relay is faulty.

Some relays also have an overload protector. Test this part by checking for continuity between its two terminals. No reading usually means the overload protector has failed. If either the start relay or overload protector fails the test, replace the part.

It’s a good idea to bring the faulty part to an appliance store or order a replacement online using the model number from your refrigerator. Make sure the new part matches exactly. Installing the wrong part can damage the compressor.

After replacing the start relay, reattach it to the compressor. Replace the back panel, plug in the refrigerator, and listen for the compressor to start. If the fridge begins cooling normally, the issue is resolved.

If the refrigerator still doesn’t start or makes clicking noises, the compressor itself might be damaged. In that case, it’s best to call a qualified technician for further inspection.

Start relay problems are fairly common and easy to test with the right tools. Many people prefer to check this component before calling in for a service. However, if you’re unsure about the process or need help diagnosing other issues, reach out to a trusted professional in Appliance Repair San Diego.

Fixing a refrigerator doesn’t always require a full repair job. Sometimes, one small part like the start relay can be the only thing standing between a warm fridge and properly chilled food.