The pump does not
provide sufficient
pressure.
Air may be trapped
in the pipework.
The pump may have not been primed
correctly and there is potential of
air still in the suction pipeline.
1. Check the pressure gauge on the side
of the pressure control to determine if
that model pump is operating correctly
when referencing its pump curve.
2. Bleed air from system while the suction
line is connected to the pump:
a) Above ground tank: Remove
priming plug on pump casing. Allow
water to flow through via gravity
until all air has been expelled.
b) Below ground tank: Ensure foot valve
is installed and not leaking through
damage or debris. Fill up suction line
and casing from priming point.
3. Activate all appliances/outlets
sequentially from the nearest to the
furthest outlet. Repeat if necessary.
4. If problem persists, please contact
the Reece branch where the
pump was purchased from.
Refer to page 16 for more information
on priming the pump.
The suction pipe
internal diameter
may be too small.
A suction pipe size that is too small will cause
high pressure loss or cavitation. Increase the
pipe size to an internal diameter that is the
same size as the suction inlet, or larger.
Note: This means for a 25mm inlet pump
a 32mm PN12.5 Poly Pipe must be used.
Debris may be caught
in the pump impeller.
Check for solid objects that may
be blocking the impellers.
1. Disassemble pipework and pump housing.
2. Clean impellers.
It is recommended to call a pump
technician or licensed professional.
TROUBLESHOOTING
42 VADA FLOW BOSS HORIZONTAL MULTISTAGE PUMP VFB-HM110 INSTALLATION MANUAL
SYMPTOM CAUSE SOLUTION
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