Xylem Lowara GEM Traduction De La Notice Originale page 109

11 Troubleshooting
WARNING:
Maintenance and troubleshooting activities must be completed by personnel with the
technical-professional qualifications required by current standards.
WARNING:
If a fault cannot be corrected or is not mentioned, contact Xylem or the Authorised Distributor.
Note: for faults not listed in the table, see Alarm list on page 111.
GEM, GEMJ – Fire-fighting Pump Set
Problem Causes
The control panel does Main switch set to 0-OFF
not switch on
Power supply disconnected
FU fuse box open
FU fuse blown
The control display Main switch set to 0-OFF
does not switch on
FU fuse box open
FU fuse blown
FU1 fuse box open
FU1 fuse blown
FU2 fuse box open
FU2 fuse blown
Control display faulty
The pump does not
Key selector switch in MAN or 0 position
start automatically
FU2 fuse blown
FU2 fuse box open
Faulty motor
Pressure switch wrongly calibrated
Faulty pressure switch
Contactor failure
The jockey pump does
Main switch set to 0-OFF
not start automatically
Power supply disconnected
Key selector switch in MAN or 0 position
Control panel automatic switch in the OFF position
Faulty motor
Faulty pressure switch
Pressure switch not connected
Pressure switch wrongly calibrated
Insufficient water level in the priming tank
Level probes not connected
The jockey pump does
Faulty pressure switch
not stop automatically
Pressure switch wrongly calibrated
The check valve does not close
en – Original Instructions
Solutions
Turn the switch ON
Activate the power supply
Close the fuse box
Replace the fuse
Turn the switch ON
Close the fuse box
Replace the fuse
Close the fuse box
Replace the fuse
Close the fuse box
Replace the fuse
Contact Xylem or the Authorised Distributor
Move the selector switch to AUT
Replace the fuse
Close the fuse box
Contact Xylem or the Authorised Distributor
Calibrate the pressure switch
Replace the pressure switch
Replace the contactor
Turn the switch ON
Activate the power supply
Move the selector switch to AUT
Turn the switch ON
Contact Xylem or the Authorised Distributor
Replace the pressure switch
Connect the pressure switch
Calibrate the pressure switch
Fill the tank or calibrate the level probes
Connect the level probes
Replace the pressure switch
Calibrate the pressure switch
Replace the check valve
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