28
|
Error
No.
Warning
message
Possible causes
Corrective actions
E:
6
.
3
INTERNAL
ERROR
Internal error
Disconnect HWAT-ECO
controller and replace unit.
When reporting this error,
provide the exact error
number, cable type, cable
length and the setpoint
temperature.
E:
6
.
4
INTERNAL
ERROR
Internal error
Disconnect HWAT-ECO
controller and replace unit.
When reporting this error,
provide the exact error
number, cable type, cable
length and the setpoint
temperature.
E:
6
.
5
INTERNAL
ERROR
Internal error
Disconnect HWAT-ECO
controller and replace unit.
When reporting this error,
provide the exact error
number, cable type, cable
length and the setpoint
temperature.
E:
6
.
6
INTERNAL
ERROR
Internal error
If you are using low noise,
humfree contactor, replace
it with the non-humfree
contactor. If this does
not help, then disconnect
HWAT-ECO controller
and replace unit. When
reporting this error, provide
the exact error number,
cable type, cable length and
the setpoint temperature.
E:
7
GROUND FAULT There is a leakage of
current to ground
Reset the GFCI.
If GFCI is tripping, check
heating cable.
E:
8
PLAUSIBILITY
CHECK
Parameters contradict
each other
Check parameter settings.
Water
temperature
too low
Installed heating
cable is different from
the program selected
Insulation thickness
deviates from the required
insulation
thickness; the
ambient temperature
value entered is
too high
Check water heater
temperature and timer
program.
Change heating cable type
in HWAT-ECO-GF (can only
be done in Quick start).
Increase maintain
temperature.
Change value of ambient
temperature.
Water
temperature
too high
Water heating cable
temperature is too
high Insulation
thickness deviates
from the required
insulation thickness;
the ambient
temperature value
entered is too low
Change heating cable type
in HWAT-ECO-GF (can only
be done in Quick start).
Decrease maintain
temperature.
Change value of ambient
temperature.
