Graco A-25 E05 Control board over temperature, E06 Communication cable unplugged

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Important Two-Component Material Information

E05: Control board over temperature

NOTE: Each module has an on-board temperature sen- sor. Heat is turned off if module temperature exceeds 185°F (85°C) within the heater module.

1.Check that fan above electrical cabinet is operating.

2.Check that electrical cabinet door is properly installed.

3.Check for obstructions blocking cooling holes in bot- tom of electrical cabinet.

4.Clean heatsink fins behind heater control modules.

5.Ambient temperature may be too high. Allow Reac- tor to cool by moving to a cooler location.

E06: Communication cable unplugged

1.Unplug and re-plug cable that connects heater con- trol module to heater module.

2.Replace communication cable if problem persists.

Communication Diagnostic Codes

E30: Momentary loss of communication

Communications between the display and the motor control board or the temperature control module have been momentarily lost. Normally, when communication is lost, the corresponding display will show E99. The corresponding control board will register E30 (The red LED will flash 30 times). If communications are recon- nected, the display can show the E30 for a small time (no more than about two seconds). It should not be pos- sible for E30 to be shown continuously, unless there is a loose connection causing the display and the board to continuously loose and regain communication.

Check all wiring between the display and the control board.

E99: Loss of communication

Communications between the display and the tempera- ture control module has been lost. When communication is lost, the display will show E99.

1.Check all wiring between the display and the tem- perature control module. Pay close attention to the wire crimping on plug J13 for temperature display and connector for control module.

Step 2 measures line voltage and should be done by a qualified electrician. If work is not performed properly it may cause electric shock or other serious injury.

2.Measure the incoming voltage to the module (it should be ~ 230Vac).

3.If it was only receiving 1 leg of the 230Vac the board may light up, and still not function properly. Correct the incoming voltage problem.

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3A1570A

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Contents Important Safety Instructions Repair-PartsContents Proportioner Models SystemsRelated Manuals Manual DescriptionElectric Shock Hazard Fire and Explosion Hazard Equipment Misuse Hazard Important Two-Component Material Information Changing Materials DataTrak Diagnostic Codes Temperature Control Diagnostic Codes Symbol Code Code Name Diagnosis Cause E01 High fluid temperature Causes of E01 ErrorsSensor Connector Continuity Checks Pins Description Reading ChecksE02 High zone current E03 No zone currentE05 Control board over temperature E06 Communication cable unpluggedE99 Loss of communication Pressure Relief ProcedureShutdown Before Beginning RepairParkFlushing Open CloseTroubleshooting ProblemsPower Pumps and PressuresProblem Cause Solution Problem Cause Solution ElectronicsProblem Cause Solution See E04 Fluid Temperature Sen HeaterSor FTS or thermocouple discon Hose Heat System Problem Cause Solution Follow Pressure Relief Procedure, RepairDisconnect Pump Connect Pump Install Air Motor Remove Air MotorAir Filter Element Installation Recirculation / Over Pressure Relief BlockAir Inlet Filter / Water Separator Auto Drain Air Filter Element RemovalTemperature Control Module Temperature Control Module ConnectionsConnector Description Bottom of Power ModulesReplacing Temperature Control Assembly Modules Test SCR CircuitPrimary Heater Heater ElementLine Voltage KW Dual Zone Heater Thermocouple ThermocoupleOvertemperature Switch Check Hose ConnectorsPins Result Heated HoseFluid Temperature Sensor FTS InstallationTest/Removal Transformer Primary Check Transformer Secondary Check Replace TransformerModel Secondary Voltage Replace Circuit Breaker Module Size ComponentPump Lubrication System Pump Lubrication SystemTemperature Display Refer to Reactor A-25 Wiring Schematic,Fluid Inlet Strainer Screen Detail of Membrane Switches and Temperature Display Board Display ModuleReplace DataTrak Battery or Fuse Replace BatteryReplace Fuse Accessories Recommended Spare PartsParts 7984 100 888Torque pump locking nuts to 66-74 ft-lbs 90-100 Nm Part Description Qty CartNipple Control Panel ScrewTemperature Control Wheel KitRef. Part Description Qty Fluid Manifold Fluid Inlet KitKw Dual Zone Heater, 24J788 RingAir Motor Pump Assembly PLUG, PipeAir Tubing Connections Length Connection Outside Ft m FromColor Diameter Breaker Module Reactor A-25 Wiring Schematic PhasePOD Reactor A-25 Wiring Schematic Simplified Schematic, Heater Controls Technical Data Category DataGraco Standard Warranty Graco Information
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