Display Problem
Possible causes
Remedy
F117
High pump base temperature
● Insufficient cooling
● Improve cooling
● Check deployment conditions
F118
High output stage tempera-
ture
● Insufficient cooling
● Improve cooling
● Check deployment conditions
F119
High bearing temperature
● Insufficient cooling
● Improve cooling
● Check deployment conditions
F143
High temperature of operating
materials pump
● Insufficient cooling
● Improve cooling
● Check deployment conditions
F168
High delay
● Pressure increase
speed too high; venting
rate too high
● Check and adjust venting rate on pump-
specific basis
Tbl. 12:
Error and warning messages for the drive electronics of the turbopump
Display Problem
Possible causes
Remedy
E042
Software inconsistent
Checksum error
● Call Pfeiffer Vacuum Service
E091
Hardware unknown
● Call Pfeiffer Vacuum Service
E098
Internal communication error between the inter-
face board and drive
● Call Pfeiffer Vacuum Service
E117
Excess temperature pump
● Insufficient cool-
ing
● Improve cooling
● Check deployment conditions
E173
Overcurrent on pump
E174
Pump blocked
Tbl. 13:
Error and warning messages for the drive electronics of the diaphragm pump
MVP 015
Malfunctions
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