- No beam, not even solvent beam.
- All voltage readbacks are normal.
- Desolvation temperature option was unavailable and showed readback of 40 °C.
- Quattro Premier XE
- Xevo G2
- Xevo G2-S
- Xevo G2-XS
- SYNAPT G2
- SYNAPT G2-S
- SYNAPT G2-Si
- SYNAPT XS
Communication issue with EPC.
FIX or WORKAROUND
Restart EPC (see detailed instructions here - WKB7776).
After EPC restart, desolvation temperature box returned to normal and all beams were visible.