Troubleshooting Guide
How to Fix Hangcha CPCD25-XF Fault Code 37
Control Unit 5V Output Fault
Error Code: 37Equipment: Forklift
Error Code 37 Diagnosis
What This Code Means
Control Unit 5V Output Fault
Possible Causes
- 1K1-16 voltage below 4.3V
Recommended Solution
Check for 5V ground short. Verify encoder wiring.
Verified Technical Content
This troubleshooting guide has been reviewed and verified by the China Lift Supply Technical Team. Our certified technicians specialize in Hangcha 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
Battery Charger
PartIndustrial-grade lithium battery charger for electric forklifts
Digital Multimeter
ToolEssential for diagnosing voltage and current issues
Need Parts to Fix This?
Common replacement parts for the CPCD25-XF
Starter Motor (Xinchai)
QDJ2519B-PAlternator
JFZ2302Water Pump
2101050K26Master Cylinder
HC-N163-610002-000Popular Hangcha Troubleshooting
HangchaCPCD25-XF
Hangcha Forklift
Machine Specs
Fuel TypeDiesel
Mast TypeWide View Duplex or Triplex
Lift Speed118 ft/min
Lift Height118 in / 3000 mm (Standard)
Why Trust This Guide?
- Based on official Hangcha service documentation
- Verified by certified equipment technicians
- Updated with latest service bulletins