en - Original instructions
e-SV series - Installation, Operation and Maintenance Manual 37
7.11 The unit is leaking
Replace the mechanical seal or fit a mechanical
seal with harder seal faces
Mechanical seal damaged due to thermal shock
(presence of air bubbles in the unit)
Replace the mechanical seal
Defective mechanical seal
Replace the mechanical seal
Mechanical seal damaged due to temperature
of the liquid outside the rated limits
Replace the mechanical seal with another of a
suitable make
Mechanical seal damaged due to chemical
incompatibility with the liquid
Replace the mechanical seal with one of a
make chemically compatible with the pumped
liquid
7.12 The motor becomes excessively hot
Room temperature outside the rated limits
Lower the room temperature
Cooling fan of the motor clogged or damaged
Clean or replace the cooling fan
The unit starts up too frequently
See the section: The unit produces excessive
noise and/or vibrations
The frequency converter, if present, has not
been calibrated properly
See the frequency converter manual
7.13 The frequency converter is in error mode or turned off
The frequency converter (if present) is in error mode or turned off
See the frequency converter manual
See the frequency converter manual
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