I just purchased and installed a new condenser fan motor, defrost timer and defrost thermostat because frozen food was not very frozen and ice in the trays had been melting and freezing together. After installing these items, the refrig runs continuously. Freezer gets to 15 to 20 degrees and refrigerator section 30 to 35 degrees depending on setting but the refrig does not stop running. It will shut off if I move the temperature control know to off but comes back on at the lowest setting. Any help would be appreciated.

Thank you for your reply.

The refrigerator was not running all the time prior to replacing the parts.

One day I found that the frozen food was not frozen solid and there was water on the bottom shelf of the (top) Freezer. I looked at a great deal of troubleshooting blogs and videos, including the ones on this site. After that I checked the compressor with a meter and found that it was fine. I did not see frost on the evaporator coils behind the freezer. With these symptoms, most troubleshooting blogs pointed to the three parts I purchased. I thought is was the defrost thermometer because of the water in the freezer but the fan was making noise and I figured with the age of the refrig I might as well replace the timer also. I will say that I did not check the defrost parts first.

After your reply, I checked the evaporator coils again and there is significant frost only in the corner around where the defrost thermometer is. I assume that is were the freon enters. So I'm guessing you were right on about the sealed system problem.

Thanks again.

PS Door seal was fine.