SEL1 PID overspeed error
Error code
- 000422
Occurrence condition
- Valve selection motor rotated faster than expected.
Assumed cause
- The valve selection motor was driven at a high speed relative to the motor speed control.
Related parts
- Gear trains of the valve selection motor are damaged (unloaded condition)
- Valve selection motor
Troubleshooting
| Step | Confirmation and action | YES | NO |
|---|---|---|---|
| 1 | Check harness connection Is the harness connecting to the Selector Unit properly connected? |
Go to step 2 | Reconnect the harness. |
| 2 | Replace the suspected part Replace the Selector Unit. Does the error still occur? |
Contact Epson local service representatives. |
End |