Pentair 1.0 Service Manual page 23

SYMPTOM
3. The valve cycles
continuously.
4. Loss of filter media
through the drain
line
5. Loss of water
pressure
6. Constant water 1. Drive motor failure.
flow to the drain
If the troubleshooting guide did not resolve the unit's symptoms, please contact your local Dealer for service.
TROUBLESHOOTING GUIDE
CAUSE
Defective or shorted micorswitches
1. Excessive backwash/fast rinse flow.
2. The lower and/or upper distributor is
damaged.
3. A leak between the riser tube and upper
distributor.
1. Mineral or iron build up in the filter tank.
2. Plugged lower and/or upper distributor.
3. Crushed lower and/or upper distributor.
4. Plugged riser pipe.
2. Computer board failure.
3. Defective microswitch(es).
4. The valve body and timer are out of
synchronization.
SOLUTION
Replace the microswitches.
1. Verify that the backwash flow control is
installed and sized correctly.
2. Replace the distributor(s).
3. Verify that the riser tube is seated correctly
and is not cracked.
1. Clean the filter bed and control valve.
Increase the regeneration frequency.
2. Remove the debris from the distributor(s).
3. Replace the distributor(s).
4. Remove and clean the riser pipe.
1. Replace the drive motor.
2. Replace the computer board.
3. Replace the microswitch(es).
4. Defective microswitch(es).
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