MBRAUN LABmaster pro sp - Page 242

11 Troubleshooting
Definition of alarm and warning messages
Page
11 - 8
MB-20-G/MB-200G-W_MB-LABmaster_MB-200 MOD_TP700
Operating Manual - V5.0 - 04/2018 - STD
No Description Possible fault causes Solution Elimination
39 LMF: motor guard on
vacuum pump has
triggered
Vacuum pump defect-
ive
Large leak in the va-
cuum tubing (vacuum
pump is too heavily
loaded by large leak)
Replace va-
cuum pump.
Eliminate large
leak in the
tubing.
Vacuum pump
test.
Test by
MBRAUN-
Service
45 Motor guard vacuum
pump VP1 has
triggered
Vacuum pump defect-
ive
Large leak in the va-
cuum tubing (excess-
ive vacuum pump
loading from large
leak)
Replace va-
cuum pump.
Eliminate large
leak in the
tubing.
Vacuum pump
test.
MBRAUN-
Service
46 Motor guard vacuum
pump VP2 has
triggered
Vacuum pump defect-
ive
Large leak in the va-
cuum tubing (excess-
ive vacuum pump
loading from large
leak)
Replace va-
cuum pump.
Eliminate large
leak in the
tubing.
Vacuum pump
test by
MBRAUN Ser-
vice.
MBRAUN-
Service
47 Motor guard vacuum
pump VP3 has
triggered
Vacuum pump defect-
ive
Large leak in the va-
cuum tubing (excess-
ive vacuum pump
loading from large
leak)
Replace va-
cuum pump.
Eliminate large
leak in the
tubing.
Vacuum pump
test.
MBRAUN
Service
49 Motor guard cooling
compressor circula-
tion has triggered
Cooling compressor
for circulation defect-
ive
Compressor
test.
Replace com-
pressor.
By
MBRAUN
Service
50 Overpressure or neg-
ative pressure in cool-
ing compressor circu-
lation
Cooling compressor
for circulation defect-
ive
Compressor
test.
Replace com-
pressor.
By
MBRAUN
Service