SENSOR 5304521879

Hello Joe, thank you for your question. The high-temperature alarm sounds when the temperature inside the freezer rises 15 degrees above the set temperature. This could be caused by a few things. If the alarm goes off and you hear the compressor running, a sealed system problem such as a refrigerant leak or a failed compressor pump may be causing the problem. Have a service technician examine the freezer if you suspect a sealed system failure. If the evaporator fan inside the freezer runs but the compressor doesn't run, a failed start relay on the compressor could be preventing it from starting. Most relays will rattle if they're bad. Unplug the freezer and pull off the start relay and shake it. If it rattles, try replacing the relay to get the compressor started and the freezer cooling. If the freezer compartment is actually at 0 degrees when the high-temperature alarm sounds, a failed thermistor or bad electronic control board, part number PS12728924 likely caused the alarm by inaccurately detecting freezer temperature. If the defrost heating element that melts frost off the evaporator fins fails, frost will cake up on the evaporator fins and interfere with cooling airflow in the freezer. Part number PS12729037. A failed evaporator fan can also cause cooling problems because it won't circulate air through the freezer cabinet. Replace the evaporator fan if it doesn't run when activated. Part number PS12728945. Clean dirty condenser coils because dirty coils won't cool down refrigerant before it enters the evaporator. We hope this helps!

Hi William, thank you for the question. Yes, the thermistor, part number PS12729038, you have bought could be the reason for the freezer running but not freezing. We hope this solves your problem!