22
Troubleshooting
The technology upon which the Autotrol Performa
control valve 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 very easily be serviced. 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. To remove
water pressure from the system, put the bypass valve
or three-valve bypass into the bypass position and
open the backwash drain valve (the seventh valve back
from the control) with a screwdriver. Restore system
water pressure when the service work is completed.
Valve Troubleshooting
Problem Possible Cause Solution
1. Control backwashes at
excessively low or high rate.
a. Incorrect backwash controller used.
b. Foreign matter affecting controller
operation !
a. Replace with correct size controller.
b. Remove controller and ball. Flush with water.
2. Untreated water leakage
during service.
a. Improper regeneration.
b. Leaking of bypass valve !
c. O-ring around riser tube damaged !
a. Repeat regeneration making certain that the
correct salt dosage is set.
b. Replace O-ring.
c. Replace O-ring.
440i and 940F Control Troubleshooting
Problem Possible Cause Solution
1. Control will not regenerate
automatically.
a. Transformer or motor not connected.
b. Defective timer motor.
c. Skipper pins not down on timer skipper
wheel.
d. Binding in gear train of timer.
a. Connect power.
b. Replace motor.
c. Depress pins for days regeneration required.
d. Replace timer.
2. Control regenerates at wrong
time of day.
a. Time set incorrectly. a. Correct time setting according to instructions.
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