Graco Reactor E-XP1 Troubleshooting Manual page 24

Reactor Error Code Trouble Shooting Guide
E23: High Pressure
Causes:
1) Jumper wire on plug J10 (E-20/E-XP1) or J7 (E-30/E-XP2) pin 7 to pin 10 on the
motor control board is loose or has become disconnected.
o On the current units without the over pressure switches Check the jumpers and the
wiring.
o On the older units with the Pressure switches.
 Check to see if one of the pressure switches failed.
1) Remove the plug J10 (E20/E-XP1) or plug J7 (E30/E-XP2).
2) Measure the resistance between pins 7 and 8, and between 9 and 10.
o If the resistance in steps 2 & 3 is not  1 ohm, jumper pins 7 to 10. order
o
Rev 2.6 (02/2014)
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Measurement should be  1 ohm.
repair kit 246961.
If the error persists after connecting pin 7 to pin 10 with jumper, replace
the motor control board, along with kit 246961
Page 24