Elevator failure and general troubleshooting

Update:15-12-2020
Summary:

     Failure phenomenon failure cause remedial mea […]

 

   Failure phenomenon failure cause remedial measures

  1. The local circuit fuse is often blown

   1. The component or wire touches the ground

  2, the breakdown of the relay insulation pad, reinforced insulation or replacement of the relay

  3. The fuse capacity is too small. When using a suitable fuse, the dark rated current

  2. The main circuit fuse is often blown (or the main circuit switch is often closed)

  1~3 are the same as above 1~3 are the same as above

  4. The starting and braking time is set too long or too short according to the elevator technical manual to adjust the starting and braking time

  5, start and brake reactor (resistance) connector compression loosen fastening contacts

  3. Turn off the base station key switch, the base station elevator cannot open the door

   1. Outer door switch, poor contact or damage to the door key switch, replace the key switch

  2. The contact of the first limit switch when the door is opened is bad, and the limit switch is replaced.

  3. The switch door control switch outside the base station is in poor contact or damaged. Replace the switch door control switch

  4. The door open circuit relay is damaged or the control circuit is faulty. Replace the relay or check the faulty circuit

   4. The elevator cannot be opened after the base station 1. The fuse of the switch circuit is blown and replace the fuse

  2. The door opening limit switch is in poor contact or the contact limit switch is damaged

  3, the door open circuit relay is damaged or its control circuit is faulty, replace the relay or check the circuit

  4, the door belt is loose or damaged, adjust or replace the belt

   5. When the door is opened, the impact sound is very loud

  1. The position of the coarse adjustment resistor of the door switch is not correct.

  2. The trimming resistance of the door switch is not adjusted correctly or the electric ring is in poor contact. Adjust the position of the resistance ring or adjust its contact pressure

   6. The door cannot be closed automatically by pressing the switch button

  1. The fuse of the door switch circuit is blown and replace the fuse

  2. The door closing relay is damaged or the closing circuit is faulty. Replace the relay or check the closing circuit and repair it

  3, close the first limit switch contact bad contact replacement limit switch

   4. The safety touch panel is stuck or the switch is damaged. Adjust the safety touch panel or replace the touch panel switch.

  5. Repair or adjustment of malfunction of photoelectric protection device in door area

  7, the elevator cannot start after it is closed

  1. Poor contact or damage to the Hall and door interlock switches. Check the maintenance chain switch

  2, power supply voltage is too low or lack of phase inspection and repair

  3, the brake is not released and the brake is adjusted to adjust the brake

  4, DC elevator excitation device fault inspection and maintenance

   8. The elevator is difficult to start or slow down

  1, power supply voltage is too low or lack of phase inspection and repair

  2, the brake is not released and the brake is adjusted to adjust the brake

  3, DC elevator excitation device fault inspection and maintenance

   4. The bearing of the traction motor is poorly lubricated. Fill or clean and replace grease

   5. The lubrication of the traction reducer is poor. Fill or replace grease

   9. The car is abnormal or noisy when the elevator is running.

   1. Poor guide rail lubrication, clean the guide rail and add oil

  2. The guide wheel or reverse pulley and bushing are poorly lubricated. Clean and replace the grease

   3. The sensor collides with the magnetic isolation board, adjust the position of the sensor or the magnetic isolation board

  4. The lining of the guide shoe is seriously worn out. Replace the shoe lining

  5, the rolling bearing is worn out, replace the bearing

  6. ​​The brake gap is too large or too small. Adjust the brake gap.

        7. The suspension on the top of the car is loose or foreign objects are removed from the shaft fastening materials

https://www.sselift.com/