Error Code 77 Diagnosis
What This Code Means
Coil Interrupted
Possible Causes
- 1Contactor or solenoid coil open circuit
Recommended Solution
Test coil continuity. Check connections. Replace coil if open circuit detected.
Verified Technical Content
This troubleshooting guide has been reviewed and verified by the China Lift Supply Technical Team. Our certified technicians specialize in Heli 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
Hydraulic Seal Kit
PartComplete seal kit for hydraulic cylinder repair
Electrical Contact Cleaner
ToolFor cleaning oxidized or dirty connector pins
Need Parts to Fix This?
Common replacement parts for the CPD25-GE2DLI
Curtis 1239E-8521 AC Motor Controller
1239E-8521Albright SW200B-1162L Main Contactor
SW200B-1162LSwitch Assembly
A73J2-41302Switch - Steering Column
D09JK803HL