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Troubleshooting
18 312066Z
Reactor Electronics
Before performing any troubleshooting procedures:
1. Relieve pressure, page 23.
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.
PROBLEM CAUSE SOLUTION
Both sides of display do not
illuminate.
No power.
Plug in power cord.
Turn disconnect ON .
Low voltage. Ensure input voltage is within specifi-
cations, page 46.
Loose wire. Check connections, page 46.
Display disconnected. Check cable connections, page 46.
Temperature display does not
illuminate.
Display disconnected. Check cable connections, page 46.
Display cable damaged or corroded. Clean connections; replace cable if is
damaged.
Defective circuit board. 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.
Pressure display does not
illuminate.
Display disconnected. Check cable connections, page 46.
Display cable damaged or corroded. Clean connections; replace cable if is
damaged.
Defective circuit board. 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.
Erratic display; display turns on and
off.
Low voltage. Ensure input voltage is within specifi-
cations, page 46.
Poor display connection. Check cable connections, page 46.
Replace damaged cable.
Display cable damaged or corroded. Clean connections; replace cable if is
damaged.
Display cable not grounded. Ground cable, page 46.
Display extension cable too long. Must not exceed 100 ft (30.5 m)
Hose display reads OA at startup. FTS disconnected or not installed. Verify proper installation of FTS (see
Operation manual 312065), or adjust
FTS to desired current setting.