Troubleshooting
2200 SRM 1286
STATUS
CODE
DISPLAY MESSAGE
LED
CIRCUIT
Over-
heat
Overheat
Flashing Red
Traction Motor
DESCRIPTION
SYMPTOM
Controller has detected an over temperature
condition in the traction motor or
power bridge.
Traction and hydraulic systems will not operate.
Probable Causes and Test Procedures
1.
Internal temperature of controller has exceeded 140°C (284°F).
a. Reduce truck usage and allow the controller to cool. System will recover once the truck is able to
achieve a temperature below 125°C (257°F).
2.
Clear fault log in dash display. See the section User Interface, Service Technician Functions
On-Board Dash Display 2200 SRM 1324.
3.
With the traction motor at room temperature, turn the key switch to the OFF position then back to the
ON position and operate the lift truck briefly.
4.
Check the dash display to verify fault does not repeat.
5.
If fault repeats, check resistance between pin #1 and pin #2 at the motor temperature sensor connector.
a. Resistance should measure approximately 5.9 ohms ±10% at 25°C (77°F).
• Replace sensor.
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