ProLite Plus Owner's Manual page 181

TROUBLESHOOTING SECTION
The water pump does not shut off even when the tap is closed.
• Check that there is enough water in your drinking water tank.
• Ensure that the water pump is in normal mode.
• Ensure that some object has not kinked the hose between the pump and the tank.
• Checkfor damp areas around plumbing fixtures (possible water leak).
• Have a qualified technician check your pump.
Water flow from a tap is low.
• Check whether the tap's filter is obstructed and clean it as required.
• If your tap has a flow controller, check whether it has been activated.
The water pump starts in delayed alternation when you are creating
no demand for water.
• Check around and in all plumbing fixtures for a possible slow leak
(tap, shower, outdoor shower, toilet, connection to water heater, etc.).
• If the problem persists, consult a specialist.
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The pump may be obstructed by some debris. Consult a specialist to
clean it as required.
At the start of the season, the pump may be filling the water heater tank.
The pump may cycle on and off in alternation when you create a small
demand for water (e.g. brushing teeth). This is normal because it is trying
to maintain constant pressure. If the pump cycles on and off when you
are creating no demand, check for a water leak.
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