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Heavy Repair Method of Refrigerator by Application of Refrigerant
2-2. Returnof Remained Refrigerant
Required equipment: Pinch pliers, hose for refrigerant recovery, vacuum pump
• If refrigerant returntime of 7 minutes has passed, connect a vacuum pump at the ends of a refrigerant returnhose
outdoor. (Vacuum pump must operate outdoor.)
• Operate a vacuum pump in order to returnrefrigerant remained in the pipe.
• Vacuum working time should be for more than 10 minutes.
Suction Pipe
Vacuum Pump
Discharge refrigerant
outside using window or door.
Pinch Plier
Process Pipe
Discharge Pipe
2-3. Welding Repair Step
Required equipment: Simple welding machine
• Remove pinch pliers if remaining refrigerant returnis completed.
• Cut the front part of a process pipe with a cutter. (Check that remaining refrigerant comes out.)
• Perform welding work such as replacement of compressor and dryer, or repair of leakage part. (Be cautious of fire during
welding work.)
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