4
Error/Alarms and
Troubleshooting
49
EN-RaychemHWATECOcontroller-IM-H57340 03/13
Indications/Trouble
shooting
Cause/reasons
Remedy
Water tempera-
ture too high
Too high water
temperature
• Heater used is differ-
ent type than entered
in program.
• Insulation thickness
is different than stan-
dard thickness.
• Entered value of
ambient temperature
is too low
• Change heater
type in HWAT-ECO
(can only be done
in quick install
"Setup" on page 36
- Reinitialize)
• Adjust power correc-
tion factor if possible
(see "Timer" on page
41)
• Change value of
ambient temperature
No display
Loss of power
Restore power
Can’t access pro-
gramming mode
Controller is
password-protected
Enter your 4-digit
password. If you for-
got your password,
enter the backup
password: 6922 to
unlock the controller
