09/20072-42 Phaser 8860/8860MFP Service Manual37,0XX.xx, 37,01X.41Initial IssueError Messages and Codes37,0XX.xx PEST Heater FaultsAn heating error has occurred. The following troubleshooting procedure applies to these errors:Initial Actions• Check the Printhead, Preheater and Ink Loader power connections.• If the problem persists, follow the procedure below.Primary CausesThe troubleshooting table lists parts and wiring referenced in the troubleshooting procedure.Troubleshooting Procedure37,01X.41 PEST Fan FaultsAn fan error has occurred. The following troubleshooting procedure applies to these errors:Initial Actions• Check the Electronics Module and Drum Cooling Fans.• If the problem persists, follow the procedure below.Primary CausesThe troubleshooting table lists parts and wiring referenced in the troubleshooting procedure.Troubleshooting ProcedurePEST Heater Faults37,001.46 An error occurred during PEST execution.37,002.47 The Left Jetstack is drawing less power than expected.37,003.48 The Right Jetstack is drawing less power than expected.37,004.40 Ink Reservoir 0 is drawing less power than expected.37,005.41 Ink Reservoir 1 is drawing less power than expected.37,006.42 The Drum Heater is drawing less power than expected.37,008.44 The Preheater is drawing less power than expected.37,009.45 All Ink Melt Heaters are drawing less power than expected.37,010.46 The Yellow (0) Ink Melt Heater is drawing less power than expected.37,011.44 The Cyan (1) Ink Melt Heater is drawing less power than expected.37,012.48 The Magenta (2) Ink Melt Heater is drawing less power than expected.37,013.48 The Black (3) Ink Melt Heater is drawing less power than expected.Table 1 37,0XX.4x Troubleshooting Reference TableApplicable Parts Wiring and Plug/Jack ReferencesInk Loader Assy, PL 2.0 Electronics Module - Figure 8Printhead, PL 2.0 Electronics Module - Figure 8Preheater, PL 2.0 Electronics Module Power - Figure 9Table 2 PEST Heater Faults 37,0XX.4x Troubleshooting ProcedureStep Questions or Actions Yes No1 Test the affected component.Run the Service Diagnostics test for theaffected component.Does the affected component reach oper-ating temperature?Go to Step 2. Replace the affectedcomponent.2 Check wiring to the affected component.Is the wiring damaged?Repair or replace theharness.Replace the affectedcomponent.PEST Heater Faults37,014.41 The Electronics Module Fan is drawing less power than expected.37,015.41 The Drum Fan is drawing less power than expected.Table 1 37,01X.41 Troubleshooting Reference TableApplicable Parts Wiring and Plug/Jack ReferencesElectronics Module Fan, PL 4.0 Left Side Harness (2/2) - Figure 7Drum Fan, PL 4.0 Right Side Harness / I/O Control - Figure 10Table 2 PEST Fan Faults Troubleshooting ProcedureStep Questions or Actions Yes No1 Test the affected component.Run the Service Diagnostics test for theaffected fan.Does the affected fan operate correctly?Go to Step 2. Replace the fan.2 Check wiring to the affected component.Is the wiring damaged?Repair or replace theharness.Replace the affectedcomponent.
