how to test a ptc start relay

Please check pictures for more details. Compressors can be expensive to fix, so you may want to buy a new refrigerator instead. It is plugged onto the 3 prong connector on the side of the fridge compressor. Turn it over to expose its bottom side and locate the connectors - most have 3 sockets but some only two. Positive temperature coefficient, PTC thermistors are used in many electronic circuits and for a variety of functions. I NEED TO REPLACE THE START RELAY. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. If there isn't anything wrong with the relay, there could be problem with your compressor, which is a much more costly and complicated fix. The thermistor is electrically between the contacts of the relay, in parallel with the relay contacts. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. If your fridge hasn’t been working and you don’t know how long it’s been, throw away perishable foods since they may be at an unsafe temperature. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Relay does not release. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Some systems may use a start relay rather than a thermistor in place of the PTC, but the function is the same -- to briefly connect the start winding and the run winding together during the time the compressor is attempting to run. Thanks to all authors for creating a page that has been read 197,357 times. Contact a repair person to take a look at your fridge to further diagnose the problem. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. wikiHow's. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. Answer Peter, Thanks for the question!!! Last Updated: November 21, 2019 If they form a right-side up triangle, then the third prong will be on the top. Test the solid state relay by shaking it. Use a multimeter to measure resistance across all the pairs of the connectors on the underside of the PTC relay. We use cookies to make wikiHow great. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. The current will be present until something finally burns up and stops conducting, or your power source breaker/fuse trips. Plug a new relay into place and reconnect the wires in the same order. Once you can get behind your fridge, unplug it from the outlet so it doesn’t have any power running through it. This image may not be used by other entities without the express written consent of wikiHow, Inc.
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