Thermo Scientific
48iQ Instruction Manual
6-1
Chapter 6
Troubleshooting
This chapter presents guidelines for diagnosing analyzer failures, isolating
faults, and includes recommended actions for restoring proper operation.
Read the safety precautions in Appendix A, “
Safety
” before performing any
actions listed in this chapter.
Table 6–1
provides general troubleshooting information for the common
platform and indicates the checks that you should perform if you
experience an instrument problem. It also lists 48iQ specific
troubleshooting information and alarm messages you may see on the
graphics display and provides recommendations about how to resolve the
alarm condition.
Table 6–1.
48iQ Troubleshooting Guide
Problem
Possible Cause
Action
Instrument does not start
(LEDs on front panel do not
come on and display is
blank)
No power
Verify that the power cord is
plugged in, power is available and
that it matches the voltage and
frequency configuration of the
instrument.
Fuse is blown or
missing
Disconnect power and check fuses
with a volt meter.
Bad switch or wiring
connection to switch
Check for 24V @ J9 on the
Backplane board (middle pins).
Check all wiring connections.
Front panel display does not
start (LEDs on front panel are
off)
Disconnected ribbon
cable
Power down and evaluate
connections of display ribbon cable.
Front panel display does not
start (LEDs on front panel are
on)
Defective Display
Connect to the instrument using
ePort. Select “Remote Interface”. If
normal GUI is displayed, replace
defective display.
Front panel display stays
white after power up (LEDs
on front panel are on)
Unseated or missing
Micro SD card
Power off, re-seat Micro SD or
install if missing.
Safety Precautions
Troubleshooting
Guide
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