Troubleshooting
Troubleshooting Guide
6-6
42iQLS Instruction Manual
Thermo Scientific
Problem
Possible Cause
Action
Alarm – Cooler Voltage too
Low
Defective cooler
Replace cooler as needed.
Defective DMC board
Replace DMC board as needed.
Alarm – Cooler Voltage too
High
Defective cooler
Replace cooler as needed.
Defective DMC board
Replace DMC board as needed.
Alarm – PMT Voltage too
Low
Defective PMT
Replace PMT as needed.
Defective DMC board
Replace DMC board as needed.
Alarm – PMT Voltage too
High
Defective PMT
Replace PMT as needed.
Defective DMC board
Replace DMC board as needed.
Alarm – Frequency too Low
Input board is out of
calibration
Recalibrate the Input board.
Alarm – Frequency too High
Input board is out of
calibration
Recalibrate the Input board.
Summary of Contents for 42iQLS
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