No spray from tool-free ESI probe used on SQD2, Xevo G2-S, Xevo TQ Absolute, Xevo TQD, Xevo TQ-S, Xevo TQ-S micro, or Xevo TQ-XS - WKB278387

SYMPTOMS

• No spray from ESI tool-free probe
• No signal observed on Tune page 
• Diverter valve is set to LC
• UPLC system pressure is slightly higher than normal
• Disconnecting the probe assembly from the diverter valve shows solvent reaching the diverter valve

ENVIRONMENT

• Xevo TQ-S micro
• Xevo TQD
• Xevo TQ-XS
• Xevo G2-S
• Xevo TQ Absolute
• SQD2
• Xevo TQ-S

CAUSE

The ESI assembly for the tool-free probe is blocked or damaged.

FIX or WORKAROUND

Replace the ESI assembly for the tool-free probe. See KB article WKB85646 for part numbers. 

ADDITIONAL INFORMATION