Troubleshooting Guide
How to Fix Dingli JCPT1912DC Fault Code 20
General Alarm TM1
Error Code: 20Equipment: Scissor Lift
Error Code 20 Diagnosis
What This Code Means
General Alarm TM1
Possible Causes
- 1Traction Motor 1 controller fault, motor driver issue
Recommended Solution
Inspect TM1 controller connections. Check for loose wires or corrosion. Reset system and test drive functions. Replace TM1 controller if fault persists.
Verified Technical Content
This troubleshooting guide has been reviewed and verified by the China Lift Supply Technical Team. Our certified technicians specialize in Dingli equipment diagnostics and maintain accuracy based on official service documentation.
Reviewed by Christopher Ray, Technical Director
Parts & Tools You May Need
Based on this error code, these items may help with your repair
Digital Multimeter
ToolEssential for diagnosing voltage and current issues
Motor Controller
PartAC/DC motor controller for electric lift equipment
Torque Wrench Set
ToolPrecision torque tools for proper fastener installation
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DingliWhy Trust This Guide?
- Based on official Dingli service documentation
- Verified by certified equipment technicians
- Updated with latest service bulletins