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4
Error/Alarms and
Troubleshooting
Please ensure that the unit is correctly connected to
the power supply and the heating cable is connected
to the HWAT-ECO-16 unit.
Error code
Definitions Cause/reasons
Error 1:
Error 2:
Error 3:
Raychem-IM-H59181-HWATECO16controller-EN-1805
Internal temperature
alarm;
Temperature is too
high. (> 65°C)
Pipe Sensor failure
(Only when
temperature alarm
"enabled" selected)
• Sensor or sensor
cable defect
• Low temp alarm or
High temperature
cut-out selected
and sensor is not
installed.
Network failure
Two or more
HWAT-ECO-16's are set
as Master
Remedy
Turn off power and allow the
controller to cool and then
re-energize. The controller
will lock out after three
occurrences. If this does not
restore the controller, replace
the HWAT-ECO-16.
Connect sensor to
HWAT-ECO-16 or turn off
temperature alarm.
Check sensor connections;
replace sensor, check
temperature sensor mounting
Reinitialize MASTER
(see "Setup" on page 36)
nVent.com | 45
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