HP Modular Cooling System Options - Manual (Page 11)

Web interface 11
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
51 )."
HEX (heat exchanger unit) temperature in failed (Server Intake Temperature failed)
Indicators Meaning
Operator display alarm message HEX1, HEX2, or HEX3 Temp. 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 (
http://www.hp.com ).
HEX temperature out failed (Server Exhaust Temperature failed)
Indicators Meaning
Operator display alarm message HEX1, HEX2, or HEX3 Temp. 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 (
http://www.hp.com ).
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