Technical Support:
01905 560 219
17
Order:
01905 823 299
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orders.akw-ltd.co.uk
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Trouble Shooting
Reported fault
No lights on the pump display
Pump does not activate
when shower is turned on
Pump comes on but
does not draw water
Possible causes
fuse/fuse board turned off
Isolation switch is turned off
break in the supply cable to the pump
not wired in correctly
flow sensor or sensors if a mixer
shower not connected properly
flow sensor incorrectly wired up
flow sensor faulty
Pump is not paired correctly if
no flow sensor if has a wireless
connection
Pump is calibrated too low to
activate from the water pressure
Insufficient water pressure to
activate the flow sensor
flow sensor is blocked
Possible ingress of air in the
pipework to the pump
Possible blockage in the pipework
to the pump
Pump not calibrated correctly to draw
water away sufficiently
Possible blockage in the non return
valves
Possible blockage in the pump head
Checks and work to be undertaken
Check power supply to the unit
Check the wiring to the pump
Check the cable to the pump
Check water pressure to the shower
is sufficient to activate the flow
sensor, check the flow sensor is fitted
in the correct orientation
Check flow sensors wired correctly
Re-pair the pump and the shower
if a wireless connection
Check calibration settings
– should be over 50
Test flow sensor under running tap
while connected to the pump to see
if activates it
Check flow rate to flow sensor
is a minimum of 2 litres a minute
Check the filter is fitted before the
flow sensor in the supply pipe and
that the flow sensor is clear
attach temporary pipework to the
inlet side of the pump and get it to
discharge water from a bucket when
shower turned on and sprayed into
the bucket
attach temporary pipework to the
inlet and outlet sides of the pump
and get it to discharge water from
one bucket to another bucket when
shower turned on and sprayed into
the bucket
Check the calibration of the pump
Remove the pump head and check
for blockages to pump head and
non-return valves
Remove the pump head and check
for blockages to pump head and
non-return valves
