22
Possible Cause
Pump doesn’t turn on.
Pump isn’t powered. Connect it to main supply.
Pump’s protection fuse is broken. Replace it. See page 19 for
replacement procedure.
Pump’s main board is broken. Replace it. See page 19 for
replacement procedure.
Pump is not dosing and
solenoid is operating.
The foot filter is obstructed. Clean it.
Suction hose is empty. Pump must be primed. Repeat priming
procedure.
Air bubbles inside hydraulic circuit. Check valves - hoses -
fittings.
Product to dose is generating gas. Turn venting knob and let air
flow away.
Use a self-venting pump head.
Pump is not dosing and sole-
noid isn’t operating or slightly
operating.
Crystals presence inside valves. Check them and try to dose 2-3
liters of normal water.
Change valves.
Injection valve obstructed. Change it.
11. Troubleshooting
Problem
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