Question about Carrier 74 cu. ft. Commercial Freezer Beverage-Air EF74-5AHS

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Can a bad relay trip a breaker? Could an overload switch trip a breaker? The capacitor has been replaced.

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The answer is yes.

Posted on Jul 18, 2009

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I have summit commercial freezer with embraco emi 60her when turn the power on, fan start run then compressor start run about 30 second the trip the compressor. ans i can not see any run or start...


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

Apr 02, 2013 | Freezers

2 Answers

Freezer trips breaker


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.

Jul 30, 2012 | Frigidaire 20.3 Cu. Ft. Frost-Free Upright...

1 Answer

Condensing unit terns off but won't come back on kicks off breaker


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.

Oct 22, 2009 | True 19 cu. ft. / 538 liter Commercial...

1 Answer

Everything works fine, except when the compressor kicks in the panel breaker trips.


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".

May 27, 2009 | Beverage-Air 44.9 cu. ft. / 1271 liter...

1 Answer

Tripping the breaker


Check the start relay. If it is OK the compressor is bad.

May 12, 2009 | Kenmore 20.3 cu. ft. / 575 liter Upright...

1 Answer

Once in awhile, Circuit Breaker Trips


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.

Apr 22, 2009 | Frigidaire Freezers

1 Answer

Compressor gos to overlaod


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


Mar 31, 2009 | Turbo Air 49 cu. ft. / 1388 liter...

1 Answer

Had theoverload and relay switch replaced still tripping breaker


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 .

Nov 19, 2008 | Hussmann Commercial Freezer DCCG-12

1 Answer

Cold tech commercial reach-in freezer


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,

Apr 08, 2008 | Freezers

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