Runxin N74A3 User Manual

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
38
(Continued)
13. Salt
water in
soften water.
A. Foreign material in
injector pr injector fails to
work.
B. Brine valve cannot be
shut-off.
C. Time of rapid rinse too
short.
A. Clean and repair injector.
B. Repair brine valve and clean it.
C. Extend rapid rinse time.
14. Unit
capacity
decreases.
A. Unit fails to regenerate or
regenerate not properly.
B. Fouled resin bed.
C. Salt setting not proper.
D. Softener setting not
proper.
E. Raw water quality
deterioration.
F. Turbine of flow meter is
stuck.
A. Regenerate according to the
correct operation requirement.
B. Increase backwash flow rate
and time, clean or change resin.
C. Readjust brine drawing time.
D. According to the test of outlet
water, recount and reset.
E. Regenerate unit by manual
temporary, then reset regeneration
cycle.
F. Disassemble flow meter and
clean it or replace a new turbine.
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.

Runxin N74A3 Specifications

General

Brand	Runxin
Model	N74A3
Category	Control Unit
Language	English