Check inlet and outlet pressures
Check controller – manually operate the backwash cycle
Some commands do not function
Check solenoid electrical connectors
Repair or replace the solenoid
Check the air supply control
tube
Remove the valve’s cover. Check the
diaphragm and the piston
Replace if needed
Check & clean the drain manifold
and pipe
Contact your local distributor
Continuous or Non-stop Backwashing
Disconnect the control pipes
from the valves
Check inlet / outlet pressure
Check pressure differential gauge and replace if needed
Check controller described above
Contact your local distributor
Disconnect the drain manifold
Locate the nonfunctioning valve. Remove any
obstruction. Repair the valve if needed
Command transfer
Replace control panel
Command transfer
Replace the solenoid if needed
Contact your local distributor