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MAINTENANCE &
TROUBLESHOOTING FOR
12V UNITS
The troubleshooting information is provided
as a reference when your sprayer is not
functioning correctly� To ensure that
you receive the best possible service,
it is recommended that you exhaust all
applicable troubleshooting solutions shown
prior to calling your dealer for service
advice�
Problem
Pump not priming
Pulsating liquid
flow
Pump pressure
lower than expected
Pump stopping and
starting when not
in use
Possible Cause
Valves damaged
Restriction in suction line
Restriction in delivery line
Diaphragm damaged
Pump switching on and off due
to pressure switch
Pump sucking air
Suction filter screen blocked
Restriction in suction line
Valves damaged
Diaphragm damaged
Pump sucking air
Insufficient voltage
Valves damaged
Insufficient voltage
Damaged diaphragm
Possible Remedy
Check, clean and/ or replace
valve kit
Check suction line
Check delivery line
Replace diaphragm
Alter settings of the pressure
switch
Alter the adjustable conejet
nozzle
Restricted pump delivery
Check suction line
Clean screen
Check hoses, fittings and tank
outlet
Check/or replace valve kit
Check/or replace diaphragm
Check suction line
Check power supply
Check valves
Check power supply
Check/or replace diaphragm
7
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