E25: High Line Voltage; E26: Low Line Voltage; E27: High Motor Temperature; E28: High Current In Motor - Graco Reactor E Series Manual

E25: High line voltage

Supply voltage too high. Check Reactor voltage
requirements, page 61.

E26: Low line voltage

Supply voltage too low. Check Reactor voltage
requirements, page 61.

E27: High motor temperature

a. Motor temperature too high. Reduce pressure,
gun tip size, or move Reactor to a cooler loca-
tion. Allow 1 hour for cooling.
b. Check fan operation.
c. Check motor sensor and connection to board
(J7, pins 1, 2), page 28.
309574C
Motor Control Diagnostic Codes

E28: High current in motor

a. Short on motor control board. Replace board,
page 28.
b. Replace motor, page 27.

E29: Brush wear

Brush sensor contacting motor commutator.
Replace brushes within 50 hours of operation
after warning occurs. See pages 24, 27.
CAUTION
Prolonged operation of motor after a brush wear
warning may result in failure of motor and motor con-
trol board.
13