Graco Reactor E-XP1 Troubleshooting Manual page 28

Reactor Error Code Trouble Shooting Guide
1a) One of the pressure transducers has failed.
o The digital display on a Reactor always shows the higher of the two pressures. As
soon as the higher analog pressure drops below the lower analog pressure the
digital display will switch to the new highest reading. Knowing this, the following
tests should show which pressure transducer has failed.
 For testing purposes only – Find the dip switches (labeled SW2 in the manual) on the
motor control board, and set dipswitch 3 to off on E-Series Reactors, dipswitch 2 off
for H-Series Reactors. This will allow the Reactor to run with a pressure imbalance
warning.
Rev 2.6 (02/2014) Page 28