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The start relay should be on the side of the compressor and attached to the three prongs that wiring attaches to on the compressor.Is the problem causing the breaker to trip in the circuit breaker box? Sea Breeze You can have someone match the start relay and the run capacitor at a refrigeration supply store near you or you can contact Summit HERE http://summitappliance.com/support
If it is tripping the breaker when the unit is in defrost this is will not be the capacitor. You could have a heater or defrost thermostat issue. Please contact a professional for a full diagnosis.
I would try replacing that overload and relay in the compressor. Your compressor may be shorted out. If it is, replacing relay and overload won't help.
If it runs, turns off, then tries to restart and kicks breaker, look for bad start components. Check start relay, start capacitor. It may be trying to restart too quickly and the compressor over amps and breaker trips. The system needs to have at least 3 minutes of off time before trying to restart. This allows the pressures in the system to balance enough so the compressor can overcome the high side pressure and start. I've seen where people turn the control up and down very quickly causing the compressor to over amp and trip breakers and over loads.
Hope this gets it for you.
Most likely a short in the compressor electrical components (relay, overload,capacitor) Supco makes a 3 in 1 that you could use. If this works fine, if not "bad compressor".
Your compressor start relay contacts may be getting loose or worn, resulting in a delayed start on the compressor.
If the start device includes a capacitor, it could be getting weak.
GFCI are not good receptacles for devices with high starting torque.
sound like a bad start capacitor,if you have a capactance check on your multimeter,you can find the readings on the side of the cap.I always replace the relay,overload and capacitor at the same time. this usually keeps me from coming back and having to replace another part in a short amount of time. Also check and make sure your condensor coil is clean , let me know if you need more help
yes. if you pull all the wires from compressor and use a meter with a continuity bell , touch a copper line and then a compressor terminal. try em all. odds are you'll hear a bell showing continuity or the fact that power can flow directly from the compressor terminal to the chassis= a grounded compressor. or you could have a dead short where the wires in to the compressor aren't touching the case but are touching each other before they go to the motor windings, = a short. either one is an all done situation. time for new .
sounds like an issue witrh the microprocessor to me as well, although you tried bypassing it it still didnt work its quite possible that the fan aand compressor are runnig on different voltagfe the 110v , new energy effient compressors are starting to run w/ 220, an inverter built into the circuit board could be steppin up power,
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