Temperature Control Failed (1 - 4); Temperature Sensor Failed (1 - 4) - Agilent Technologies 1290 Infinity User Manual

Temperature Control Failed (1 - 4)

There are four Peltier elements build into the autosampler thermostat for
efficient cooling / heating. The electronics monitor the current through the
Peltier elements. If the Peltier current is out of a specified limit the Peltier
element is defective.
Probable cause
1

Temperature Sensor Failed (1 - 4)

The autosampler thermostat is equipped with four sensors to monitor the
performance of the instrument. The sensors are connected to both sides of the
Peltier elements for control of the cooling / heating efficiency. As the
positioning of the sensor is critical to meet the performance requirements of
the autosampler thermostat the single sensors cannot be replaced separately.
Probable cause
1
1290 Infinity Thermostat User Manual
One of the four peltier elements is defective. Peltier elements can not be replaced on-site.
Temperature sensor is defective
Error Information
Thermostat Error Messages
Suggested actions
Please contact Agilent Technologies service
organization to initiate instrument exchange
process.
Suggested actions
See Service Manual for Exchanging the Sensors.
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