Oki ES3640MFP Service & Troubleshooting Manual page 103

Fiery Controller Fan Failure
Error Codes that Apply
051
Initial Troubleshooting Actions to Take
1. Cycle the Printers Power
2. If the problem persists follow the procedure below.
Parts of the Printer that Apply
1. Fiery Control Board Fan
Troubleshooting Procedure
Steps
Test the cooling fan for proper
1
operation and adequate airflow.
Run the Motor Clutch
Does the fan operate correctly?
Check for +5 V to the fan. Is +5 V
2
Action Taken
Fan test.
present?
Yes
Replace the Engine
Control Board
Replace the Fan
No
Go to Step 2.
Replace the Fiery
Control Board