Reactor Electronics - Graco Reactor E-20 Series Manual

Reactor Electronics

Before performing any troubleshooting procedures:
1. Relieve pressure, page 26.
PROBLEM
Both sides of display do not
illuminate.
Temperature display does not
illuminate.
Pressure display does not
illuminate.
Erratic display; display turns on and
off.
Hose display reads OA at startup.
312066ZAD
2. Turn main power OFF
3. Allow equipment to cool.
Try the recommended solutions in the order given for
each problem, to avoid unnecessary repairs. Also,
determine that all circuit breakers, switches, and con-
trols are properly set and wiring is correct before assum-
ing there is a problem.
CAUSE
No power.
Low voltage.
Loose wire.
Display disconnected.
Display disconnected.
Display cable damaged or corroded.
Defective circuit board.
Display disconnected.
Display cable damaged or corroded.
Defective circuit board.
Low voltage.
Poor display connection.
Display cable damaged or corroded.
Display cable not grounded.
Display extension cable too long.
FTS disconnected or not installed.
Troubleshooting
.
SOLUTION
Plug in power cord.
Turn disconnect ON
Ensure input voltage is within specifi-
cations, page 49.
Check connections, page 49.
Check cable connections, page 49.
Check cable connections, page 49.
Clean connections; replace cable if is
damaged.
Swap display connection to motor
control board with connection to
heater control board. If temperature
display illuminates, heater control
board is causing problem. Otherwise,
display cable or display is failing.
Check cable connections, page 49.
Clean connections; replace cable if is
damaged.
Swap display connection to motor
control board with connection to
heater control board. If pressure dis-
play illuminates, motor control board
is causing problem. Otherwise, dis-
play cable or display is failing.
Ensure input voltage is within specifi-
cations, page 49.
Check cable connections, page 49.
Replace damaged cable.
Clean connections; replace cable if is
damaged.
Ground cable, page 49.
Must not exceed 100 ft (30.5 m)
Verify proper installation of FTS (see
Operation manual 312065), or adjust
FTS to desired current setting.
.
21