Encore HD Powder Spray System with Pump Cabinet20Part 1612632−03  2018 Nordson CorporationTroubleshootingPump Control PanelProblem Possible Cause Corrective Action1. Reduced powderoutput(pinch valves areopening and closing)Blockage in the powder tubing tothe spray gunCheck the tubing for blockages.Purge the pump and spray gun.Defective pump air flow controlvalveClean the pump air flow control valve.Refer to Flow Control Valve Cleaningon page 22 for instructions.If the problem persists, replace thepump air flow control valve. Refer toFlow Control Valve Replacement onpage 23 for instructions.Defective pump check valve Replace the check valves.2. Reduced powderoutput(pinch valves are notopening and closing)Defective pinch valve Replace the pinch valves and filterdiscs.Defective solenoid valve Replace the solenoid valve. Refer toSolenoid and Flow Control ValveFunctions on page 23 to determinewhich solenoid valve controls theaffected pinch valve.Defective pump check valve Replace the check valves.3. Reduced powderinput (loss of suctionfrom feed source)Blockage in the powder tubingfrom the feed sourceCheck the tubing for blockages.Purge the pump and spray gun.Loss of vacuum at the vacuumgeneratorCheck the vacuum generator forcontamination.Check the pump panel exhaustmuffler. If the exhaust mufflerappears to be plugged, replace it.Defective pump air flow controlvalveClean the pump air flow control valve.Refer to Flow Control Valve Cleaningon page 22 for instructions.If the problem persists, replace thepump air flow control valve. Refer toFlow Control Valve Replacement onpage 23 for instructions.4. Spray gun fan patternchangesDefective pattern air flow controlvalveClean the pattern air flow controlvalve. Refer to Flow Control ValveCleaning on page 22 for instructions.If the problem persists, replace thepattern air flow control valve. Referto Flow Control Valve Replacementon page 23 for instructions.

Intended Use

Fire Safety

Description System Components 3

Pump Panel

Pump Panel Components

HD Pump Manifold Components

Solenoid and Flow Control Valve Functions

Spray Gun Controller

Installation Manifold and Pump 9

Pump Control Board

Switches and Indicators

Control Board Configuration

Configuration Procedure

Air and Powder Tubing Connections

System Diagram

Pneumatic Diagram Dual Pump/Spray Gun System

Wiring Diagram Dual Pump/Spray Gun System

Operation

Nordson Corporation

Flow Control Valve Cleaning

Flow Control Valve Replacement

Dual Pump/Spray Gun System with Stand

Manifold

Air and Powder Tubing

PCA Replacement Kit

Jackson Street Amherst, OH

Contact Us

Nordson Encore HD Customer Product Manual

Safety

Description

Pump Components

Theory of Operation

Purging

Pump Port Functions

Specifications

Installation

Maintenance

Troubleshooting

Delivery Check

Bubble Test for Color-on-Demand (COD System

Repair

Pump Disassembly

Pump Assembly

Pinch Valve Replacement

Parts

Spare Parts

Air and Powder Tubing Part Numbers

Encore HD

Personal Safety

Grounding

Connections

Manifold Solenoid Valve Functions

Manifold Wiring Diagram

Maintenance and Repair

Pump Module Assembly

Pump Module Unit

Pump Module Manifold

Factory Connections

Pump Cabinet Dimensions

System Air Supply and Grounding Connections

Replacing Grounding Strip

Installing or Replacing the Pump Module

Pump Cabinet Configurations

Pump Cabinet Parts

Qualified Personnel

System Setup

System Connections

Controller Connections

Initial Startup

Standby Button

Factory Set Presets

Changing a Factory Configured Preset or Setpoint Value

Electrostatic Settings

Custom Mode

Classic Mode

Help Codes

Assist Air Setting, Fast Flow Setting, and Software Versions

Powder Flow Settings

XT Powder Flow Settings

Color Change Purge

Color-on-Demand (COD) System Purge

Controller Configuration

Saving and Loading Preset and Function Settings

HD System Shutdown

Help Code Troubleshooting Chart

General Troubleshooting Chart

Re-Zero Procedure

Controller Interconnect Cable Test

Wiring Diagram

Controller Parts

Controller Parts List

Rail Mount Exploded View

Encore HD 1612632