Gardner Denver Welch LVS 105 T 10 ef+, Operation Manual, Page: 52 / 64

Elimination of operating faults
52 Operation Manual LVS 105 T
– 10 ef
+
7
Elimination of operating faults
OPERATING FAULTS IN DEVICE
►
Adhere to the instructions and notes in section 8 Maintenance!
►
To eliminate the operating faults within the device, the instructions and
notes in section 8 Maintenance and section Fehler! Verweisquelle konnte
nicht gefunden werden. Fehler! Verweisquelle konnte nicht gefunden wer-
den. must be adhered to.
Authorization to eliminate operating faults
See section 2.2.2 Overview of the responsibilities .
1 : User/ (1) : specially trained users only
2 : Specialized personnel
3 : Manufacturer
Type of error Cause Measure
Au-
tho-
rized
No display There is no power Check the correct connection of the
power cable (external), fuse
1
Internal check of electrical compo-
nents (e.g. power supply unit)
2, 3
Faulty display/con-
trol electronics Replacement
3
Vacuum pump
does not start up There is no power. Check the correct connection of the
power cable (external), fuse
1
Motor defective Replacement
3
Faulty pump unit Repair or replace
2,3
Pressure setpoint
is not reached or
not reached suffi-
ciently fast
(vacuum pump
turns continuously
with maximum ro-
tational speed)
Pneum. connect-
ors/connections or
glass apparatuses
are leaky Identify leaks and seal them; replace
damaged components where neces-
sary
1
Internal pneum. con-
nections are leaky Check the hose connections between
the pump heads; replace the hoses
and screw fittings where necessary
2, 3
Contamination of the
internal components
of the vacuum
pump, e.g. valves Clean with the self-cleaning operating
mode; see section
6.2.5 Operating
mode 5 Self-cleaning
1
Faulty diaphragms
or valves Replace the diaphragms/valves; see
section
8.3 Repairs by the manufac-
turer
2, 3
Vacuum application
too large or vacuum
pump capacity too
small Adapt the vacuum application to the
characteristic data of the device
2
Evaporation rate too
high Reduce evaporation rate
1
Water valve does
not switch despite
display Faulty valve
(mechanical/electri-
cal)
Exchange the water valve; see sec-
tion
4.8 Accessories (options)
1