Complete Kit: Includes 1 refrigerator starter relay (4.7 Ohm, 3-pin) and 1 overload protector (1/2HP), perfect for fixing common fridge issues. Two pieces in total. Fix Common Problems: Solve issues like the compressor not starting, overheating, or hearing "click-clack" sounds every 3-5 minutes. Ideal for when your fridge isn’t working properly. Easy Diagnosis: Before replacing the entire refrigerator, check the starter relay. If you hear a rattle when shaking the old part, it’s likely broken. Replace with this kit to restore functionality. Quick DIY Solution: High-quality materials ensure reliability. With simple tools and about 10 minutes, you can replace the parts yourself and save on repair costs or a new fridge. Wide Compatibility: Works with most mini fridges, compact refrigerators, beverage coolers, deep freezers, and wine fridges. Compatible with part numbers like QP2-4R7, WS-EP14F, and more. Troubleshooting steps： 1.Unplug the Refrigerator: Disconnect the refrigerator from power and remove the Relay and Overload from the compressor connections. 2.Check Compressor Resistance: Measure resistance across all three compressor terminals. Each should read between 5-15 Ohms. If any terminal shows an open circuit, it could indicate an issue. 3.Verify Voltage: Plug the refrigerator back in and check for voltage at the compressor plug. Ensure it’s receiving power. 4.Inspect the Relay: Unplug the refrigerator again, remove the Relay, and shake it. If you hear a rattling sound like loose marbles, it’s a strong sign that the Relay is damaged and needs replacement.