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a Dixie Narco DN-276E is causing some problems


DUPREE

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Machine trips the GFCI switch every time I plug it in, I was told it was the main bord on the drink machine so I replaced it (no change). I noticed that with the door open on the drink machine there are two connections at the bottom that run between the machine and the door, also with the smaller one unplugged it does not trip the switch.

When All connections are plugged in and machine is setup properly , once I plug in the drink machine the lightbulb will blink and trip GFCI but with the smaller plug disconnected at the bottom of the door, the coin mech, bill acceptor, drinks are dispensing properly, compressor seem to be operational and both fans run but not cooling.

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This issue depends on which connections you are pulling apart.  There is a round connector (black rubber barrel plug) that is power to the door, lights, logic board, motors and coinage.  There is also a typical two wire wall plug-like connector that is power to the compressor and the condenser fan under the machine.  The evaporator fan is going to run all the time.  I'm not aware of another power connection at the bottom of the cabinet but there might be a white connector or two that are motor and switch harness connections.  Your likely GFI tripping sources are 110v sources such as the compressor, evap or condenser fans, light ballast and logic board transformer.  I'm confused on what you're actually disconnecting because the same connector supplies power to the lights as to the logic board, etc. 

 

I would suspect the compressor due to it "not cooling" because the condenser fan gets power from the cold control along with the compressor.  If the fan is running but not the compressor then your compressor is probably shorted out.  This would explain why first plugging it in trips the GFI because the compressor would immediately try to start and if it draws excessive current from a locked rotor or a shorted motor winding the GFI trips.  This would also trip the overload which cuts power to the motor winding, so when you reset the breaker and plug the machine in again, the overload may still be tripped (it's heat triggered) and you would have all other functions until the overload cools and the compressor tries to start again.

 

If you need a new compressor you can PM me if you don't have a local source.

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First thing I would do is temporally plug the machine into a non GFI outlet. Once you get the machine working only then can you start you ground fault.

 

Finding ground faults is very difficult. It could be inside any motor or ballast. Or it could be any connector getting wet.

 

Throwing parts at machines is an expensive and slow way to fix machines.

 

It sounds like you have at least 2 problems.

 

I think you would be better off paying someone to fix this one.

 

 

Walta

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