7
TROUBLESHOOTING
In-Ex and their distributors have a comprehensive parts inventory and capable service staff. Repairs should only be
undertaken by In-Ex, or an authorised In-Ex service centre.
Switch on but pump does not
operate
1. Blown fuse
Check wiring and replace
15A fuse
2. Pressure switch operated
Operate spray gun trigger
3. Pressure switch failed
Replace pressure switch
4. On/Off switch failed
Replace switch
Pump runs but does not stop.
1. Spray gun trigger open
Close trigger
2. Air lock in pump
Operate spray gun trigger
until all air is expelled from
the pump and hose.
3. Suction hose loose
Check and tighten all
suction hose connections
between pump inlet and
tank.
4. Dirt or spray residue in
pump valves
Replace valves.
5. Blocked suction filter mesh
Clean filter mesh.
Pump runs but pulses while
pumping
1. Spraying pressure higher
than the pump shut off
pressure
Reduce spraying pressure
by opening the adjustable
spray tip.
2. Pump shut off pressure too
low
Increase pump shut off
pressure. Refer
maintenance.
Fluid leaks from drain holes in
pump
1. Internal leak within pump
head
Remove pump for
servicing.