Thermo Scientific 410iQ Instruction Manual page 184

Troubleshooting
Troubleshooting Guide
6-2 410iQ Instruction Manual
Problem
Solenoid current out of
range (option)
Pump current out of range
No output signal (or very
low output)
Calibration drift
Non-linear response
Excessive response time
Alarm – Instrument
Temperature
Alarm – Bench
Temperature
Possible Cause Action
Micro SD Card If Micro SD card was just
Programming replaced, re-install the old one. If
the problem is fixed, request a
replacement Micro SD card.
Sticking or damaged Reset solenoid via
solenoid Settings>Health Check>Status
and Alarms>Valve and Pump
Resets screen. If damaged,
replace solenoid valve block.
Damaged or dirty pump Reset pump via Settings>Health
Check>Status and Alarms>Valve
and Pump Resets. Inspect and
refurbish pump. If pump motor is
damaged, replace pump.
No sample gas reaching Check input sample flow.
the analyzer
Ruptured pump Rebuild pump head.
diaphragm
Blocked sample capillary Unplug power cord. Clean or
replace capillary.
Line voltage fluctuations Check to see if line voltage is
within specifications.
Defective pump Rebuild pump.
Clogged capillaries Unplug power cord. Clean or
replace capillary.
Clogged sample air filter Replace filter element.
Incorrect calibration Verify accuracy of multipoint
source calibration source gas.
Leak in sample probe line Check for variable dilution.
Partially blocked sample Unplug power cord. Clean or
capillary replace capillary.
Hang up/blockage in Change element.
sample filter
Low line voltage Check to see if line voltage is
within specifications.
Fan failure Replace fan if not operating
properly.
Dirty fan filter Clean or replace filter.
Overheating PCB Locate defective PCB reporting
the error and replace if needed.
Defective bench heater Check 10K ohm thermistor and
replace heater if bad.
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