nVent RAYCHEM HWAT ECO Mode D'emploi page 18

Error Warning
no. message
E:3.2 bOilEr TEmp
HigH
E:4.1 bOilEr TEmp
lOW
E:4.2 pipE TEmp lOW
E:5 HEATing CAblE
disCOnnECT
E:6.x inTErnAl ErrOr
E:7 plAUsibiliTy
CHECk
E:8 Time and
AnnUAl TimE
VEriFiCATiOn
Water
temperature too
low
Water
temperature too
high
Cannot access
programming
mode and
parameter
settings
18 | nVent.com
Problem causes
Water heater
temperature too high
Will pop up if
Temperature sensor
is higher than the
maximum exposure
temperature of the
Hwat cable: Hwat-M
(65°C), HWAT-r (85°C)
Water heater
temperature is lower
than maintain
temperature set point
of the HWAT-ECO
Water heater
temperature is lower
than maintain
temperature set point
of the HWAT-ECO
low or no current alarm
no current measured
when the circuit should
be on.
internal Error
no power supplied
during prolonged period
of time (~30 days).
Clock reset to default
"01.01.2001 00:00"
displays
water heating cable
temperature is too low
installed heating
cable is different
from the programme
selected insulation
thickness deviates from
the required insulation
thickness.the ambient
temperature value
entered is too high
water heating cable
temperature is too
high insulation
thickness deviates
from the required
insulationthickness
the ambient
temperature value
entered is too low
Controller is
password protected
Corrective actions
Check sensor and boiler
temperature
Check water heater
temperature (also indicated
in inFO of HWAT-ECO
menu)Check maintain
temperature setting at
HWAT-ECO. Check
temperature sensor
mounting
Check water heater
temperature (also indicated
in inFO of HWAT-ECO
menu). Check maintain
temperature setting at
HWAT-ECO. Check
temperature sensor
mounting
confirm that heating
cable is connected to the
controller.
disconnect HWAT-ECO
controller and replace unit.
Check parameter settings
set date and time.
Check water heater
temperature and timer
programme.
change heating cable
type in
HWAT-ECO
(can only be done
in quick start).
see 3.1.3.
Adjust power correction
factor. see 3.3.1.4.
change value of ambient
temperature.
see 3.1.5.
change heating cable
type in
HWAT-ECO
(can only be done
in quick start).
see 3.1.3.
Adjust power correction
factor. see 3.1.4.
change value of ambient
temperature.
see 3.1.5.
Enter your 4-digit
password.if you forgot your
password, enter the backup
password (3000) to unlock
the controller. see key lock