Runxin F79A-LCD - Controller Fault

MODEL 82602-F79A-LCD/82602B-F79B-LCD/82604-F82A-LCD/82604B-F82B-LCD
41
B. Controller Fault
Problem
Cause
Correction
1. All indictors
display on front
panel.
A. Wiring of front panel with
controller fails to work.
B. Control board is faulty.
C. Transformer damaged.
D. Electrical service not stable.
A. Check and replace the
wiring.
B. Replace control board.
C. Check and replace
transformer.
D. Check and adjust
electrical service.
2. No display on
front panel.
A. Wiring of front panel with
controller fails to work.
B. Front panel damaged.
C. Control board damaged.
D. Electricity is interrupted.
A. Check and replace
wiring.
B. Replace front panel.
C. Replace control board.
D. Check electricity.
3. E1 Flash
A. Wiring of locating board with
controller fails to work.
B. Locating board damaged.
C. Mechanical driven failure.
D. Faulty control board.
E. Wiring of motor with
controller is fault.
F. Motor damaged.
A. Replace wiring.
B. Replace locating board.
C. Check and repair
mechanical part.
D. Replace control board.
E. Replace wiring.
F. Replace motor.
4. E2 Flash
A. Hall component on locating
board damaged.
B. Wiring of locating board with
controller fails to work.
C. Control board is faulty.
A. Replace locating board.
B. Replace wiring.
C. Replace control board.
5. E3 or E4 Flash
A. Control board is faulty.
A. Replace control board.