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RI820251 - 04/18 - ind. A
4 1
Problem Cause Correction
1. All indictors display
on front panel.
A. Control board is
faulty.
B. Transformer
dampened or damaged.
C. Electrical service not
stable.
D. Wiring of front panel
with controller fails to
work
A. Replace control board.
B. Check and replace transformer.
C. Check and adjust electrical service.
D. Check and replace the wiring.
2. No display on front
panel.
A. Wiring of front panel
with controller fails to
work.
B. Control board
damaged.
C. Transformer
damaged
D. Electricity is
interrupted.
A. Check and replace wiring.
B. Replace front panel.
C. Replace transformer.
D. Check electricity supply.
3. E1 Flash A. Wiring of locating
board with controller
fails to work.
B. Locating board
damaged.
C. Mechanical drive
failure.
D. Faulty control board.
E. Wiring of motor with
controller is fault.
F. Motor damaged.
G. The set mode does
not match with the valve
body.
A. Replace wiring.
B. Replace locating board.
C. Check and repair mechanical part.
D. Replace control board.
E. Replace wiring.
F. Replace motor.
G.Empower the system to reset it.
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 wirinig
C. Replace control board
5. E3 or E4 Flash A. Control board is
faulty.
A. Replace control board.