1.1 If there is no light on the control indicator → check AC input voltage → check whether the plug of power cord is properly connected →check fuses → cut off the power and power on again → check the controller

1.2 If the controller indicator light is on: check the hand controller → check the adapter → check the controller → system with software enters reset re-operation (operate according to relevant system instructions)

2.1 If there is an abnormal sound of that push rod → Electromagnetic sound of the movement is louder → bearing is louder → turboworm and bevel gear do not mesh well → abnormal sound caused by impact of external force on motor → abnormal sound of torsion spring →Knocking, wiping

2.2 Abnormal sound caused by improper use of knocking and wiping pipes → inappropriate selection of pin shaft → Abnormal sound caused by interfere → the center deviation of the rear hole and the front hole of the push rod is large

2.3 Abnormal sound caused by the structure of the customer

3.1 The manual controller has a display error → power off and power on for retest → put the system into reset test → Check whether the plug of the corresponding control line is plugged properly (display E07 M1 control abnormality and E08 M2 control abnormality) → check whether the adapter is connected properly → Changeover the push rod insertion control → check the corresponding push rod → check the controller

3.2 If there is no display of the hand controller → check AC input power supply →  check whether the plug is properly connected to the power cord → turn off the power and power on again → check the controller

4.1 If cause by the periphery factors → check whether the key pad of the manual controller is stuck → check whether the key is higher so that the panel is pressed → check the damage and short circuit of manual controller wires → check the plug connection for manual controller and adapter plug solder joint for short circuit → check the bending short circuit of manual controller pin → check the mechanical damage to manual control keys

4.2 If there is a problems of controller → adhesion of relay normal opening point → check the program problems with software functionality

4.3 Use remote control to check the interference

6.1 Relay has suction sound → Check whether the plug is properly connected → Push rod no-load test → changeover the plug control of push rod → check the push rod → check the controller

6.2 relay does not have suction sound → check the hand controller → check the adapter → check the controller

7.1 Motor rotates but cannot rise → Excessive tension of the cable causes the clutch sleeve to disengage → Damage to clutch sleeve

7.2 cannot be released → Excessive loosening of the cable results in ineffectiveness → weather factor → structure problem → insufficient load

7.3 poor release → Semi-clutch state → weather factor → structure problem → insufficient load

8.1 Insufficient self-locking force of push rod

8.2 unreasonable configuration and type selection

8.3 Overload of push rod rating

8.4 no electronic short-circuit self-locking function

5.1 Installation size does not match the operating environment → Hard pull (minimum installation dimension in environment is larger than minimum installation dimension of push rod) → Hardtop (environmental maximum mounting dimension is less than the maximum mounting dimension of push rod);

5.2 Structural interference → Dead angle in front of push rod and tail pull rotation → push rod interference with bed frame → Large deviation of the center of the front and rear holes of the push rod during installation (slot structure)

5.3 Other reasons → damage due to impact → severe overload → improper installation

9.1 PTC protection of control panel

9.2 Quick break protection of protection control panel

9.3 Software setup temperature protection

9.4 Overcurrent protection of power panel  

9.5 Overheat protection of power board

9.6 Overheat protection of transformer  

9.7 Overcurrent protection of adapter

10.1 Quality problem of switch → poor contact → spring broken

10.2 Interference causes failure of switch → contacts jammed by debris → switch choking due to structural interference → failure due to size problems

10.3 Failure of switch due to human factor → diode dummy welding → diode reverse solder → wiring error → magnetic steels are installed incorrectly → poor short circuit assembly

10.4 High current causes failure of switch → Causes diode burn-out (deviation of open circuit, short circuit and resistance) →  the contact of the switch become black and poor in contact → the adhesive between the switch elastic piece and the switch case

10.5 Improper installation and use of push rod → excessive lateral force causes structural displacement → Installation knocking causes switch shrapnel to disengage