Phaser 6280 Color Laser Printer Service Manual 3-111Error Messages and CodesFan Motor Error (Rear)The MCU has detected an error upon receiving signal from the Rear Fan.Applicable Chain Link■ Chain Link 042-358-01: IOT Fan Motor FailureInitial Actions■ Cycle printer power.■ If the problem persists, follow the procedure below.Troubleshooting Reference TableApplicable Parts Wiring and Plug/Jack Map References■ Front Cover Harness, PL1.2.11■ LVPS, PL9.1.4■ Main Fan, PL9.1.10■ MCU Board, PL9.1.20■ Right Side Harness, PL10.1.15■ Top LV Harness, PL10.1.16■ Duplex Unit, PL11.1.1■ Duplex Unit Harness, PL11.1.18■ Duplex Fan, PL11.1.25■ “Map 1 - Electrical and Drive” onpage 10-9■ “Map 4 - LVPS and MCU Boards” onpage 10-12■ “Map 5 - Duplex Unit” on page 10-13■ “DC Power Supply” on page 10-21■ “Duplex Wiring Diagram” on page 10-41Troubleshooting Procedure TableStep Actions and Questions Yes No1 1. Check the detailed error code (pressthe Up and Down buttonssimultaneously).2. Does code “01” display on theControl Panel?Go to step 2. Go to step 7.2 1. Check wiring harness connectorsbetween the Main Fan and the LVPS.2. Is P/J502 securely connected?Go to step 3. Complete.3 Does the error still occur? Go to step 4. Complete.4 1. Perform the Fan test (page 4-46):Service Mode > Engine Diag >Motor Test > Fan.2. Does the Fan operate properly?Replace theMCU Board(page 8-86).Go to step 5.