Panasonic Refrigerator Repair Case: Poor refrigerator cooling performance, non-stop operation.
Fault Phenomenon: The refrigerator has poor cooling performance and does not stop running.
Analysis and Maintenance: Based on the fault phenomenon, it is determined that the defrost time relay is malfunctioning. This unit uses a TMDE807CC type timer defrost relay made in Japan. Due to frequent contact and sparking of its contacts, oxidation and sticking of the contacts can easily occur, causing abnormal defrosting and refrigeration in the refrigerator, leading to poor cooling effect (Beijing Siemens Refrigerator Repair Phone Number). Remove the damaged defrost relay, loosen the fixing screws, take out the stuck contacts, clean them with fine sandpaper to remove the oxide, and then reassemble them. The refrigerator will then return to normal operation.