11-8 Troubleshooting
Source heater not working:
Possible cause Corrective action
The source heater has failed. Inspect the Tune window EI tab
Source Temp (°C) readback.
A readback of 503 indicates that the
source heater is disconnected. Check
the integrity of the heater
connections.
See also: Figure titled “Assembled
outer source (1):” on page 10-40.
No Trap, Emission, or Filament current readback:
Possible cause Corrective action
Damaged source filament or poor
contact to the filament from the
spring contacts on the outer source.
Remove the inner source and test
the continuity of the filament with a
digital multimeter (the resistance
should be approximately 0.2 ohm).
Replace the filament if it is
damaged. If the filament is intact,
use tweezers to adjust the spring
contacts on the outer source to
improve contact.
See also: Renewing the filament on
page 10-32.
Filament is turned off. In the MassLynx Tune window,
Source tab, click Reset Filament.
See also: The EI Tune tab on
page B-22.
Solvent trip level has been exceeded. Adjust the solvent trip level or
correct the vacuum housing.
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