Hydrotech 6700 XTR Valve Downflow Automatic Water Softeners Service Manual - Manual (Page 31)

Page 31
Troubleshooting - Control Valve
Problem Cause Correction
8. Softener fails to draw brine. A. Drain line flow control is
plugged.
A. Clean drain line flow control.
B. Injector is plugged. B. Clean injector
C. Injector screen plugged. C. Clean screen.
D. Line pressure is too low. D. Increase line pressure to 20 P.S.I.
E. Internal control leak E. Change seals, spacers, and piston
assembly.
F. Service adapter did not cycle. F. Check drive motor and switches.
. Control cycles continuously. A. Misadjusted, broken, or shorted
switch.
A. Determine if switch or timer is faulty
and replace it, or replace complete
power head.
10. Drain flows continuously. A. Valve is not programming
correctly.
A. Check timer program and positioning
of control. Replace power head assembly
if not positioning properly.
B. Foreign material in control. B. Remove power head assembly and
inspect bore. Remove foreign material
and check control in various regeneration
positions.
C. Internal control leak. C. Replace seals and piston assembly.
General Service Hints For Meter Control
Problem: Softener delivers hard water
. Reason: Reserve capacity has been exceeded.
. Correction: Check salt dosage requirements and reset program wheel to provide additional reserve.
.
. Reason: Meter is not measuring flow.
. Correction: Check meter with meter checker.