1. The equipment failure is not repaired in time <br>2. The filling valve core leaks <br>3. The sealing ring of the air conditioning pipeline plug is easy to fall off <br>4. The employee did not self-check that the wind ring fell off
1, equipment failure not timely repair<br>2, filling mouth valve core leak<br>3, air conditioning line plug seal ring easy to fall off<br>4, the staff did not self-check out the wind circle off
1. Equipment failure not repaired in time<br>2. Leakage of filler valve element<br>3. Sealing ring of air conditioning pipe cover is easy to fall off<br>4. The staff did not self check and found that the air ring fell off<br>