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Problem
Possible Cause
Solution
8. Hard or untreated water is being delivered
a. Bypass valve is open or faulty
a. Fully close bypass valve or replace
b. Media is exhausted due to high water
usage
b. Check program settings or diagnostics
for abnormal water usage
c. Meter not registering
c. Remove meter and check for rotation or
foreign material
d. Water quality fluctuation
d. Test water and adjust program values
accordingly
e. No regenerant or low level of regenerant
in regenerant tank
e. Add proper regenerant to tank
f. Control fails to draw in regenerant
f. Refer to Trouble Shooting Guide number
12
g. Insufficient regenerant level in regenerant
tank
g. Check refill setting in programming.
Check refill flow control for restrictions
or debris and clean or replace
h. Damaged seal/stack assembly
h. Replace seal/stack assembly
i. Control valve body type and piston type
mix matched
i. Verify proper control valve body type
and piston type match
j. Fouled media bed
j. Replace media bed
9. Control valve uses too much regenerant
a. Improper refill setting
a. Check refill setting
b. Improper program settings
b. Check program setting to make sure
they are specific to the water quality
and application needs
c. Control valve regenerates frequently
c. Check for leaking fixtures that may
be exhausting capacity or system is
undersized
10. Residual regenerant being delivered to
service
a. Low incoming water pressure
a. Check pressure – must remain at
minimum of 20 psi. If possible,
increase pump switch cut-in to 25 psi.
b. Incorrect injector size
b. Replace injector with correct size for the
application
c. Restricted drain line
c. Check drain line for restrictions or
debris and clean
11. Excessive water in regenerant tank
a. Improper program settings
a. Check refill setting
b. Plugged injector
b. Remove injector and clean or replace
c. Drive cap assembly not tightened in
properly
c. Re-tighten the drive cap assembly
d. Damaged seal/ stack assembly
d. Replace seal/ stack
e. Restricted or kinked drain line
e. Check drain line for restrictions or
debris and or un-kink drain line
f. Plugged backwash flow controller
f. Remove backwash flow controller and
clean or replace
g. Missing refill flow controller
g. Replace refill flow controller
12. Control valve fails to draw in regenerant
a. Injector is plugged
a. Remove injector and clean or replace
b. Faulty regenerant piston
b. Replace regenerant piston
c. Regenerant line connection leak
c. Inspect regenerant line for air leak
d. Drain line restriction or debris cause
excess back pressure
d. Inspect drain line and clean to correct
restriction
e. Drain line too long or too high
e. Shorten length and or height
f. Low incoming water pressure
f. Check pressure – must remain at
minimum of 20 psi. If possible,
increase pump switch cut-in to 25 psi.
13. Water running to drain
a. Power outage during regeneration
a. Upon power being restored control
will finish the remaining regeneration
time. Reset time of day
b. Damaged seal/ stack assembly
b. Replace seal/ stack assembly
c. Piston assembly failure
c. Replace piston assembly
d. Drive cap assembly not tightened in
properly
d. Re-tighten the drive cap assembly
Summary of Contents for 7-LX-100
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