Boss 650 - Troubleshooting

7. TROUBLESHOOTING
Trouble
Check
Should do
The pump motor does not
start and does not make
noise.
Is the pump plugged in?
Is the pump float switch in
the start position when fully
submerged?
Check your electrical
installation.
Check that the float can
move freely.
Pump does not discharge.
Does the impeller rotate?
Is it in good condition?
Is the pump inlet free?
Does the delivery head
exceed the capability of the
pump discharges?
Eliminate the reason for
blocking
Replace the impeller
Clean the pump inlet.
Use the pump in accordance
with its technical capabilities.
Increase the pipe diameter.
The pump stops suddenly
Is there a sufficient water
level to suck?
Did the pump run for a
long time without
stopping?
Check inlet is not
obstructed?
Do the power of the mains
match the rating plate?
Is the temperature of the
liquid less than 35°C?
Disconnect the pump from
the mains and let it cool.
Clean the pump inlet
Use a power supply matching
the rating plate.
Observe the maximum
allowable temperature
Flow decreases
Is the pump inlet clean?
Is the impeller clean?
The discharge pipe is not
partially clogged?
Clean the area or areas in
question (s)
Low flow or insufficient
Are you sure that the pump inlet
is not obstructed?
Is the impeller clean?
Are you sure that the outlet pipe
is not obstructed?
Is the diameter of the discharge
pipe enough?
Clean the zone (s) concerned
and verify check valve, if
applicable
Connect a pipe with a suitable
diameter and suppress reduction
of the water passage.
Version 1.0
BOSS™, ASHCROFT WAY, CROSS POINT BUSINESS PARK, COVENTRY, GB, CV2 2TU Created on: 04 July 2023
BOSS™ Technical Team - Tel:03330 341920 Email: BOSStechnicalteam@bssgroup.com Last updated: 04 July 2023