\u00a9 2020 wikiHow, Inc. All rights reserved. Your fridge may not have a plastic cover over the relay. In my experience, having a "newer" refrigerator does not necessarily mean your are immune to this. It is usually large and cylindrical, and at the bottom rear of the refrigerator. This image may not be used by other entities without the express written consent of wikiHow, Inc.
\u00a9 2020 wikiHow, Inc. All rights reserved. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. Once the fridge is pulled out, look for a large cylinder-shaped object with copper tubings connected to it, you just found the compressor. Keep up the informative work, folks.". You can buy replacement PTC relays from appliance specialty stores or online. On the right side of the compressor you should see a box with wires coming out of it. The compressor won't run if the start relay fails. If they form a right-side up triangle, then the third prong will be on the top. A defective relay will measure zero (0) ohms (shorted) or infinite resistance (open). Turn it over to expose its bottom side and locate the connectors - most have 3 sockets but some only two. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. If those readings are significantly different, the twisting with the considerably lower reading comes with a turn-to-turn short, and the compressor has to be replaced. In the event the thermostatic switch checks out great, replace the solid-state motor starting relay. This time, a click should be heard and the tester should read infinity. A fault in any one of these components can cause the refrigerator to cycle improperly. Then you check the refrigerator, the compressor is working bad or any other problem in it. Because you aren't getting a dead short on any test, you either have a bad relay or you aren't testing properly. Step 3 - Access the Start Relay If the compressor assesses out but doesn’t begin and run normally, the compressor might be captured up or have bad valves or bearings. You’ll use the ohms work on your digital multimeter to troubleshoot the compressor, and using electricity applied to the circuit under test provides false readings and damages the tube. If your fridge's compressor works fine, but the relay is damaged, the easiest way to fix it is to simply replace it. This image may not be used by other entities without the express written consent of wikiHow, Inc.
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