PUMP PID excess speed error (error code: 000852)

Cause
  • Supply Pump Motor 0 was driven at an unexpected (fast) speed relative to the control.
Suspected cause
  • Motor failure
  • Main Board Assy failure
Troubleshooting

Step

Check and measure

Yes

No
Advance check 1

Checking the Ink Supply Unit Part 1
Check that the motor cable is properly connected.

Go to advance check 2

Reconnect the motor cable.
Advance check 2

Checking the Ink Supply Unit Part 2
Check that there are no foreign objects in the Ink Supply Unit.

 Go to advance check 3

Remove the foreign object.
Advance check 3

Checking the Ink Supply Unit Part 3
Check that the gears in the Ink Supply Unit are not damaged.

 Go to step 2

Replace the Ink Supply Unit.
2

Checking operation of the Ink Supply Unit
The Ink Supply Unit is confirmed to be normal by the Failure Verification “3020108 Ink Supply Pump 0”.

 If the error occurred, replace the Main Board Assy.
(If the problem persists, contact Epson local service representatives)

Replace the Ink Supply Unit and run the Failure Verification “3020108 Ink Supply Pump 0” again.