Chapter 14 Fault Codes and DescriptionsC2000  Plus 
 
ID*  Display on LCD Keypad  Fault Name  Fault Descriptions 
19 
 
Capacitor hardware 
fault   
(tH2o) 
Hardware failure in capacitor temperature detection 
Action and Reset 
Action condition  NTC broken or wiring failure 
Action time 
When the IGBT temperature is higher than the protection condition, 
time exceeds 100ms, the tH2o protection occurs. 
Fault treatment parameter  N/A 
Reset method  Manual reset 
Reset condition  Reset immediately 
Record  Yes 
Cause  Corrective Actions 
Hardware failure 
Wait for 10 minutes, and then cycle the power. Check if tH2o protection still 
occurs. If yes, return to the factory for repair.