冰箱維修技巧
如何選擇 PTC 啟動繼電器：QP2 系列 PTC 啟動繼電器資料表與選型指南
The PTC (Positive Temperature Coefficient) Starter Relay is a critical “gatekeeper” for your refrigerator, freezer, or wine cooler compressor. If your appliance is clicking but not starting, or the compressor feels hot to the touch, a failed QP2 relay is the most likely culprit. This guide provides a technical deep-dive…