7.
TROUBLESHOOTING
Subject
The pump does not
work.
The pump has
stopped working.
Check
Direction of arrows on the pump is
the same as water flow.
Inlet and outlet valves are open.
Inlet filter is not clogged.
Line's water pressure.
Springs are not broken.
Cylinder is not scratched.
Piston seals are not damaged.
Bypass installation* pump test at
low pressure.
Bypass installation* make sure
the pressure difference.
There is no water flow at the
appropriate pressure. Open the
main valve. Open the nut locking
the motor cover, remove the
motor cover, and remove the
mechanism. Check if the motor
seals are defective.
Check if the springs are broken.
Check if one of the parts of the
mechanism is broken.
Solution
Install the pump so that the
arrows point in direction of
water flow.
Open the valve
Clean the filter.
Make sure there is water
pressure in the line – check
the system input filter and
make sure it is clean.
Change the motor.
Change cylinder.
Change the seals.
Disconnect the water outlet
hose from the outlet, by
installing a bypass make
sure there is no water
returning to the pump. If
the pump is working check
the ΔP – as described in
the item below.
The water pressure at the
outlet of the pump is equal
to or greater than the water
pressure at the main line.
Replace the motor seals.
Replace the motor.
Replace the motor.