4
Error/Alarms and
Troubleshooting
46
EN-RaychemHWATECOcontroller-IM-H57340 03/13
Error code
Definitions Cause/reasons
Remedy
Error 4:
Internal Error
Controller needs to be replaced.
Contact Pentair Thermal
Management representative
Error 5:
No/Low current alarm
Ensure that the heating circuit
is connected to power output of
the HWAT-ECO.
If controlling a contactor, ensure
that the Short Heater Alarm is
enabled.
Error 6:
Configuration Error
Refer to "Short Heater" menu.
• If heating cable is longer
that 15 ft. (4.5 m) then, Short
heater = No
• If heating cable is shorter
than 15 ft. (4.5 m) then, Short
heater = Yes
Error 7:
Pipe temperature too
high
(Only when HTC is
enabled)
• Boiler temperature is
too high.
• Pipe temperature
too hot
• Verify High Temperature
Cut-out (HTC) is set correctly.
• Correct boiler or mixing valve
setting.
• Verify HWAT-ECO
programming.
• Verify that pipe insulation
schedule is correct.
