DAYLIFF SUNVERTER 3, Инструкция по установке и эксплуатации

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PROBLEM POSSIBLE CAUSE SOLUTION
Frequent starts
and stops
The water level sensor not installed
correctly
Check water level sensor and correct
The non-return valve is leaking or stuck
half open Pull out the pump and clean or replace
the non-return valve
The pump is oversized for borehole
Increase the installation depth of the
pump, throttle the pump or replace it
with a smaller model to obtain a smaller
capacity
Riser pipe leakage
Long delay before
water flows after
start
Check and repair riser pipe
Lift pump and rectify
Water hammer
Fit a surface non-return valve and a
diaphragm tank on the surface delivery
piping
Pump non return valve faulty
Loud noise in the
pipework
Pump activation due to low system head
resulting in operation at insufficient
pressure
Throttle the pump or replace it with a
lower pressure alternative
Mechanical
damage to pump
and motor