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Troubleshooting
Troubleshooting Guide
6-6
49iQ Instruction Manual
Problem
Possible Cause
Alarm – Bench
Dirty fan filter
Temperature (Ozone)
Alarm – Lamp Temp
Defective sensor
Sensor Short (Ozone)
Alarm – Lamp Temp
Defective sensor
Sensor Open (Ozone)
Alarm – Lamp
Defective lamp
Connection (Ozone)
Defective DMC board
Alarm – Lamp Short
Defective lamp
(Ozone)
Defective DMC PCB
Action
Clean fan filter as needed.
Replace sensor as needed.
Replace sensor as needed.
Replace lamp as needed.
Replace DMC board as needed.
Replace lamp as needed.
Reseat if needed.
Replace DMC board.
Thermo Scientific
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