Graco Reactor E-XP1 Troubleshooting Manual page 42

Reactor Error Code Trouble Shooting Guide
E99: Loss of Communication
Causes:
1) Communications between the display and the motor control board or the temperature
control board has been lost.
When communication is lost, the corresponding display will show E99.
 Check all wiring between the display and the corresponding control board.
o Pay close attention to the wire crimping on plug J13 for each display and motor
control boards. And J5/DISPLAY C of temperature control module.
o Swap the J13 plugs from one display to the other
 If E99 remains on the same display, replace the Display
 If E99 moves to other display then reverse the J13 on motor control with
J5/DISPLAY C of temperature control module to determine if cable or lower
control is the cause.
Rev 2.6 (02/2014)
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