25
| DOC9085G
SLP2100/2700/3100
6 TROUBLESHOOTING
Problem
Cause
Effect
Corrective measure
The pump is unable to
create a vacuum
• Water control valve is
closed
• The pump is not
receiving enough water
• The temperature of the
water is too high
• Reduced output
• The pump can become
damaged during
cavitation
• Check water control
valve
• Check the water
supply
• Stop the pump
and wait until
the temperature
has dropped to
a sufficient level,
or lower the
temperature of the
water inlet
The start-up power is
too high
• Too much water in the
pump prior to start-up
• Noise at start-up and
possible overload of
the power supply
• Check the stop valves
in the water supply
for leakage
Noise during operation
• Cavitation
• Severe damage to the
pump and potential risk
of breakdown
• Increase the suction
pressure or lower the
temperature of the
water
Leakage from the
bearing housing’s drain
holes
• Damaged shaft seal
• Bearings may become
damaged
• Potential risk of
explosive gas leak
• Stop the pump
and contact the
manufacturer
