Incorrect drive gear selected (manual Only) – Select correct gear
RPM selection switch set too low – Reset
Water pressure selection set to low – Switch to High
Dirty water filter – Clean
Incorrect or worn jetting nozzle – Replace
Filter isolation valve not fully open – Open
Water drain valve not properly closed – Close
Damaged sewer hose or fitting – Repair/Replace
Leaking rotary union/s – Repair/Replace
Regulator has worn valve/seat – Repair/Replace
Pump valves or packings worn – Repair/Replace
Regulator air pressure too low – Adjust
Water leak in water supply – Replace
Tank flush diversion valve worn – Replace