HP Modular Cooling System User Manual
Page 11
Web interface 11
1.
Remove the fan unit.
2.
Reinstall the same fan unit.
If the warning message does not clear after the module is reseated, replace the fan unit with a CSR part. For
more information on CSR parts, see "Replaceable parts and maintenance and service information (on page
)."
HEX (heat exchanger unit) temperature in failed (Server Intake Temperature failed)
Indicators
Meaning
Operator display alarm message HEX1, HEX2, or HEX3 Temperature In Failed
Web interface alarm message
Top Heat Exchanger Intake Air Temperature Sensor to Server Failed
Condition
Temperature reading is beyond limit (possible open circuit)
Sensors
HEX1, HEX2, or HEX3 sensors (This value is the water to air heat exchanger
unit temperature of the intake to the servers.)
SNMP notification
Warning
Type of message
Warning
Solution:
Contact HP, or see the HP website
HEX temperature out failed (Server Exhaust Temperature failed)
Indicators
Meaning
Operator display alarm message HEX1, HEX2, or HEX3 Temperature Out Failed
Web interface alarm message
Top Heat Exchanger Exhaust Air Temperature Sensor from Server Failed
Condition
The temperature reading is beyond limit (possible open circuit)
Sensors
Fan 1, 2, 3, 4, 5 or 6 sensors (This value is the fan unit temperature of the
exhaust from the servers.)
SNMP notification
Warning
Type of message
Warning
Solution:
Contact HP, or see the HP website
Low water flow
Indicators
Meaning
Operator display alarm message Water flow Low
Web interface alarm message
Water flow Low
Condition
No or low water flow
Modules
Water group
SNMP notification
Warning
Type of message
Warning
Solution:
Verify the water supply.
Water temperature input is out of range