Chapter 14 Fault Codes and DescriptionsC2000  Plus 
 
ID*  Display on LCD Keypad  Fault Name  Fault Descriptions 
71 
 
Watchdog(WDTT) 
Watchdog fault 
Action and Reset 
Action condition  Hardware detection 
Action time  N/A 
Fault treatment parameter  N/A 
Reset method  Hardware failure, and cannot reset. Cycle the power. 
Reset condition  N/A 
Record  Yes 
Cause  Corrective Actions 
Hardware interference 
Verify the wiring of the control circuit and wiring/grounding of the main circuit to 
prevent interference. 
If the WDTT fault still occurs, return to the factory for repair.