9
Troubleshooting
610.44434.40.000 · 08.2019
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44
© Gardner Denver Deutschland GmbH
Troubleshooting
Fault
Cause
Corrective measure
To be car-
ried out by
G-BH1 | G-BH9 does
not start up and does
not make any noise
The power supply of the G-BH1 |
G-BH9 was interrupted
Correct the break in fuses, ter-
minals or power supply lines
Electrician
Drive control intermediate circuit
voltage is too low
Check mains voltage and drive
control
Electrician
Drive control locked
Use control block
Operating
personnel
Incorrect setpoint source
Change setpoint source
Operating
personnel
Target value of the drive control
is "0"
Specify target value
Operating
personnel
G-BH1 | G-BH9 does
not start up and makes
noises
Break in one of the power sup-
ply lines
Correct the break in fuses, ter-
minals or power supply lines
Electrician
Impeller grinds or rotor is
jammed
Open G-BH1 | G-BH9, remove
foreign objects, clean or replace
parts
Service*
Faulty impeller Replace
impeller Service*
Rolling bearing is faulty
Replace rolling bearing
Service*
G-BH1 | G-BH9 turns
unevenly
Defective motor cable
Check motor cable
Electrician
Underexcitation or overexcita-
tion of the drive control motor
Check the parameterisation
Operating
personnel
Check motor data and if neces-
sary, identify the motor
Operating
personnel
After release, the drive
control switches into
fault
Differential pressure exceeds the
limits specified on the rating
plate [
➙
13]
Reduce differential pressure Operating
personnel
Impeller grinds or rotor is
jammed
Open G-BH1 | G-BH9, remove
foreign objects, clean or replace
parts
Service*
Rolling bearing in motor or com-
pressor part faulty
Replace rolling bearing
Service*
Clogged filters, silencer ele-
ments or connecting
pipes/hoses
Clean filters, silencer elements
and connecting pipes/hoses
Service*
Overcurrent protection
triggered again after
switching motor on;
power consumption too
high
Motor overloaded. Settings de-
viate from details on rating plate
Reduce settings.
Fitter
Short-circuit in the winding
Check winding
Electrician
Clogged filters, silencer ele-
ments or connecting
pipes/hoses
Clean filters, silencer elements
and connecting pipes/hoses
Service*
Impeller grinds or rotor is
jammed
Open G-BH1 | G-BH9, remove
foreign objects, clean or replace
parts
Service*
G-BH1 | G-BH9 does
not reach the required
speed or shows no or
too little differential
pressure
Incorrect direction of rotation
Check [
➙
33] the direction of
rotation
Electrician
Fluctuating density of conveyed
media
Take into account recalculation
of pressure values; consult the
manufacturer
Manufactur-
er
Leaks in the unit
Seal the unit
Fitter
Radial shaft seal is defective
Replace the radial shaft seal
Service*
9
Summary of Contents for Elmo Rietschle 2BH11
Page 44: ......
