Thermo Scientific
43iQ 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, “
” before performing any
actions listed in this chapter.
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 43iQ 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.
43iQ 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
Unseated or missing Micro
SD card
Power off, re-seat Micro SD or
install if missing.
Safety Precautions
Troubleshooting
Guide
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