10
9. Maintenance procedures
9.1 SYSTEM PRESSURE
• Your pump includes a 2000 PSI (138 bar) high pressure glycerine-filled gauge.
Check the system pressure periodically during operation The operating pressure
should be between 600-800 PSI (42–55 bar). DO NOT EXCEED 800 PSI (55 bar)!
Note: an air bubble will be inside the pressure gauge. This is normal.
9.2 EXTERNAL WATER FILTER INSPECTION
• Shut down water supply to pump before inspecting the filter element.
• To insure the long life of the pump the external filter element needs to be inspected
and/or replaced every 6 months or as needed. The time in between replacements
will vary with more use of the system and quality of water. If in an area of hard
mineral water, change the filter more often.
10. Troubleshooting
10.1 Low Pressure
• Check number of nozzles – too many will lower pressure and cause the pump to
work too hard.
• Leak in line on discharge side: inspect all nozzles, lines and fittings for leaks.
• Insufficient supply of water: increase flow of supply line and check water filter.
• Fouled or dirty inlet or discharge valves: clean inlet and discharge valve assemblies.
• Filter must be upright to avoid airlock
10.2 Water continues to run through pump after pump is turned off
• Contaminant lodged in solenoid valve: remove solenoid and plunger and dislodge
any foreign matter. Disconnect power. Inlet solenoid valve is located near the inlet
where water first comes into the unit. The first solenoid valve stops water from
coming when the power is off.
• Remove the upper electrical magneto by sliding the C-clip sideways and lifting off the
stem the entire unit. Tap on the solenoid lightly with a wrench. Disconnect the hose
pressure and squirt water inside to remove dirt. Place magneto back on with C-clip
and try again.
10.3 Pump stops running
• Overloading the circuit: confirm that pump is plugged into a dedicated circuit and
has sufficient amperage. Also be certain that sufficient water pressure is available.
Use a minimum ¾” hose (19 mm) with at least 40 PSI (2.8 bar) of clean water.
10.4 Pulsation
• Valve stuck open: check all valves, remove foreign matter and reassemble.
10.5 Water leakage from under manifold
• Worn packing, cracked plunger: install new packing or replace plungers. (Factory
authorized dealer.)
