![Marco 162 001 1B Instructions For Use Manual Download Page 6](http://html1.mh-extra.com/html/marco/162-001-1b/162-001-1b_instructions-for-use-manual_1726588006.webp)
TROUBLESHOOTING
- Check the effectiveness of the battery power supply (voltage activity)
- Check if the fuse has blown
- Check for any foreign matter present in the pump impeller. To do this, disconnect the
power supply and unscrew the three fixing screws, remove the pump front cover plate and
inspect the pump chamber. Replace the cover plate in the same initial position after
inspection.
- Avoid running the pump dry for more than a few seconds.
Pumps found defective that
have run dry in the absence of fluid are not covered by warranty.
- The pump is fitted at a height greater than 1,5m- 4,9ft above the fluid level.
- Wear of the impeller due to the presence of highly abrasive material (sand) in suspension
in the fluid
- The pump has run dry for too long a period
- Long periods of inactivity. In this case it is advisable to add liquid directly into the pump
chamber before start-up. It is also advisable to add, before running the pump, a drop of
lubricating oil inside the pump only.
- Air leak at the suction pipe due to the following reasons:
- Possible cuts in the pipe, inadequate hose clamps, malfunctioning of the filter due to
defective/worn seals
- Air leak at the pump front plate cover due to the following reasons:
- Loose fixing screws, poor effectiveness of the seal.
- Presence of liquid loops in the outlet tube.
WHY THE PUMP WILL NOT PRIME ITSELF?
CHECK POINTS IF THE PUMP HAS STOPPED OR WILL NOT START?
If it is expected that the pump will not be used for a period of at least 30 days, especially in
the case of usage with salty water, it is advisable to run fresh water through the pump and
to then loosen the pump front plate screws.
GOOD PRACTICES ENSURING A WELL FUNCTIONING PUMP
L
L-2
L-1
L-1
L-3
© S.p.A.
WARNING:
it is the responsibility of the installation technician to ensure a
a correctly designed circuit installation fitted according to regulations.
Environmental risks must be taken into account with the installation.