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Hello everyone and thanks for reading my post. GE refrigerator STS18ZBPDRWW Embraco compressor EGU 60HLG No start. Hum/click. Start relay tests bad. Overload tests .9 ohms. Two compressor prongs on top, one on bottom. Looking at it straight on ohms readings are: 5.4. bottom to top left 5.8. bottom to top right 10.8 top left to top right From what I’ve read s-r should equal c-r and c-s added together. That’d be 11.2. What does 10.8 ohms say about condition of the compressor? Nothing? A little worn? Worn out? I bought this refrigerator new in the 2000’s. Edited by user Friday, February 10, 2023 4:33:18 AM(UTC)
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Joined: 7/27/2010(UTC) Posts: 1,395 Location: near the middle of nowhere Was thanked: 24 time(s) in 24 post(s)
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The bottom terminal is "common", the upper left terminal is the "run" terminal, and the upper right terminal is the "start" terminal.
Common to start will be a bigger ohm reading than common to run ohm reading. Start and run are the motor's windings.
The readings you have sound OK, but they can't tell you if the compressor will start or keep running. You need a compressor analyzer or a new relay to really test it.
Sometimes I used a 3 in 1 start kit to replace the original start relay. Usually because the original relays were so expensive or NLA. Either the Supco RCO810 3 n' 1 or the RCO410 for 1/4 to 1/3 hp compressors.
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Rank: Guest
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Thanks.
OE relays ordered, shipped.
I don’t understand why the start-run reading is lower than the total of the other two readings. I wonder if it has something to do with the relay failure. A new relay may work at first, suggesting a successful repair, then prematurely fail.
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Rank: Advanced Member
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Joined: 7/27/2010(UTC) Posts: 1,395 Location: near the middle of nowhere Was thanked: 24 time(s) in 24 post(s)
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https://www.applianceblo...windings-test-jpg.47273/Readings are approximate. As long as there is continuity between the terminals and no continuity to the case, its probably OK. Next you power it up and take amperage readings, should be somewhere around 1/3 of the LRA amps. 1.5 up to 2.5 amps probably.
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Rank: Guest
Groups: Joined: 8/10/2018(UTC) Posts: 0 Location: 99556 Was thanked: 4 time(s) in 4 post(s)
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One more thing if will. The three wires to the compressor are colored orange, white, black. I have the orange wire top left, white top right, black bottom. Wrote it down before removing the wires but lost the paper. Did a photo search and found one similar, same color wires, but the posts are in a triangle, not the inverted triangle as is mine. Does it sound like I have the wiring right? If not can I determine the correct wiring with the multimeter?
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Rank: Guest
Groups: Joined: 8/10/2018(UTC) Posts: 0 Location: 99556 Was thanked: 4 time(s) in 4 post(s)
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GE provided a wiring diagram. Fridge is running. Thanks ThatGuy for the help.
HYank
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