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vwr.com I Instruction manual VWR® A Water System
5.2 Basic Alarms
If you encounter any electronic error
, restart the system first before doing any
troubleshooting.
Alarm
Solution
Low Feed Water Pressure
·
The system detects the feed water pressure is below
the lower limit.
·
Check the tap water faucet.
·
Replace prefilters in the prefiltration pack when check
the prefilter is clogged.
·
Contact VWR’s engineer to have an external booster
pump or solenoid valve installed if there is still the
problem.
Feed Water Conductivity > SP
·
Feed water quality is too poor
·
Contact a VWR professional engineer.
RO Product Conductivity>SP
·
RO product conductivity is above preset value.
·
Replace the RO membrane or contact a VWR
professional engineer.
RO Rejection Rate<SP
·
RO rejection is below preset value.
·
Replace the RO membrane or contact a VWR
professional engineer.
UP Product Resistivity < SP
·
UP product resistivity is below preset value.
·
Exchange both H Pack and U Pack cartridges, or
contact a VWR professional engineer.
Pure Water Dispensing
Resistivity < SP
·
HP product resistivity is below preset value.
·
Exchange T Pack or contact a VWR professional
engineer.
Check 185 UV Lamp
·
The 185 nm UV lamp may be burnt.
·
Exchange the 185 nm UV lamp or contact a VWR
professional engineer.
xx-Pack Error!, system does not
start
·
Incorrect cartridge is installed. Reinstall to the correct
position
·
Turn RFID alarm off, so system can start
P-Pack Not Detected
·
Reinstall the P Pack.
·
Check the RFID chip.
·
Contact a VWR professional engineer.
U-Pack Not Detected
·
Reinstall the U Pack.
·
Check the RFID chip.
·
Contact a VWR professional engineer.
Feed Temperature>45
℃
·
Contact a VWR professional engineer.
Feed Temperature<5
℃
·
Contact a VWR professional engineer.