Watts Autotrol 255 (400 Series) - Manual (Page 26)

26
Troubleshooting
The technology upon which the Series 255 control is based is well established
and proven in service over many years. However, should a problem or question
arise regarding the operation of the system, the control can be very easily
serviced. The control module can be quickly replaced or adjustments can be
made at the installation. We recommend that you contact your local professional
water treatment dealer for most concerns. For parts mentioned, refer to exploded
views in the Replacement Parts section of this manual.
IMPORTANT: Service procedures that require the water pressure to be
removed from the system are marked with a ! after the possible cause. Refer to
Preventative Maintenance section for instructions.
Common
Problem Possible Cause Solution
1. Brine tank
overflow.
a. Uncontrolled brine refill
flow rate.
b. Air leak in brine line to air
check.
c. Drain control clogged
with resin or other debris.
a. Remove brine control to clean ball
and seat.
b. Check all connections in brine line
for leaks. Refer to instructions.
c. Clean drain control.
2. Flowing or
dripping
water at
drain or brine
line after
regeneration
.
a. Valve stem return spring
weak.
a. Replace spring. (Contact dealer.)
3. Hard water
leakage after
regeneration
.
a. Improper regeneration.
b. Leaking of external
bypass valve.
c. O-ring around riser pipe
damaged.
a. Repeat regeneration after making
certain correct salt dosage was
set.
b. Replace bypass valve. (Contact
dealer.)
c. Replace O-ring. (Contact dealer.)
1018075 Rev I.fm Page 26 Tuesday, February 17, 2004 4:26 PM