Magic Chef refrigerator model MCBC580DBT

[cajurican]

I need some assistance troubleshooting.  After I have replaced both the TPC relay and the overload relay, the refrigerator did power up and the compressor started, it cooled very well for about 24-30 hours then shut down again.  I have unplugged and let stand overnight then re-plugged, but the compressor will NOT start up again.  The digital display inside does power up and display the current temp inside and the correct pre-set temp of 45 degree temp but compressor will not start.  Any suggestions??  

[cajurican]

3 minutes ago, cajurican said:

I need some assistance troubleshooting.  After I have replaced both the TPC relay and the overload relay, the refrigerator did power up and the compressor started, it cooled very well for about 24-30 hours then shut down again.  I have unplugged and let stand overnight then re-plugged, but the compressor will NOT start up again.  The digital display inside does power up and display the current temp inside and the correct pre-set temp of 45 degree temp but compressor will not start.  Any suggestions??  

I failed to mention that I have taken resistance reading between the three pins on the compressor, of 5, 5, 10.  That seems to be good???

[lvasquez11]

Does the fan next to it running. 

Do you a meter to check voltage at compressor if no voltage pull control out n check voltage there. 

Possible bad contact at board

[cajurican]

the fan did initially when I initially replace mentioned components but no longer.  Yes, I do have a multimeter, I just checked, no there is no voltage at compressor.  Not sure where to check voltage at "  pull control out n check voltage there"?

[lvasquez11]

Control board is locate on where led is .  Remove screws securing it to ceiling.

locate wire harness diagram at rear of unit to determine wires supplying voltage to fan/compressor.

possible burnt solder connection at rear of board 

[cajurican]

my mistake, yes there is power to the compressor, there is power to the control board as well.  I disconnected and reconnected all the ribbon cables on the control board as well to make sure they were making good connection.

[lvasquez11]

Fan n compressor get power from same location. So power at compressor means fan would be also running.

remove board n check for any burnt area at backside of board

double check. Provide pic of wire diagram if u can

[cajurican]

OK, there is a burnt solder!  I'm new to this site and can't figure out how to insert pics (wiring diagram & back of board).  Should I re-solder this connection?  Or could there be something else causing it to burn out?

[lvasquez11]

Just clean resolder area n should be good to go.

 

[cajurican]

That did the trick!  Hopefully it will runs for years 

 

Thanks for your insight, I appreciate it very much!