
58
MicroController Control System
Troubleshooting
PROBLEM 5
Display = “F”, no lift truck operation.
POSSIBLE CAUSE
Wiring defect; Logics defect.
Check continuity from control panel battery
negative to battery negative.
Continuity
No continuity
Repair or replace open wire.
Replace logics.
CHECKS
With the key on, check the voltage at logic DD-1, wire #5.
Battery voltage
No voltage
Repair or replace open cable.
Содержание B20S-3
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