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Waters

No beam because of communication issue with EPC - WKB81251

Article number: 81251

SYMPTOMS

  • No beam, not even solvent beam.
  • All voltage readbacks are normal.
  • Desolvation temperature option was unavailable and showed readback of 40 °C.

ENVIRONMENT

  • Quattro Premier XE
  • Xevo G2
  • Xevo G2-S
  • Xevo G2-XS
  • SYNAPT G2
  • SYNAPT G2-S
  • SYNAPT G2-Si
  • SYNAPT XS
  • MassLynx

CAUSE

Communication issue with EPC.

FIX or WORKAROUND

Restart EPC (see detailed instructions here - WKB7776).

ADDITIONAL INFORMATION

After EPC restart, desolvation temperature box returned to normal and all beams were visible.

How to reboot the EPC on a ZQ or Quattro micro - WKB66315

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