89
MicroController Control System
Troubleshooting
PROBLEM 34
Display = “F6”, no lift truck operation.
POSSIBLE CAUSE
Opened the P1, P2 cables when the key switch turn to on.
Opened the MOSFET TP in Pump Module;
Opened armature or field coil in pump motor when the key
key switch turn to on.
CHECKS
Check the continuity of P1, P2 cables.
Continuity
No continuity
Measure the resistance between P1 and P2
terminals on pump motor.
0 ohms
Opened
Repair or replace the cables.
Replace the Armature AS or Field AS.
Remove the controller from frame.
Replace the Pump controller.
Summary of Contents for B20S-3
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