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Warnings
4.
Troubleshooting
In case of any malfunction, absence of heating or release of steam when drawing off, turn
off the power supply and notify your installer.
4.1.
Error code indications
Repair work should only be performed by a professional.
Interrupt the alarm signal by pressing OK. When the defect is corrected, the error mes-
sage reappears for a last acquittal.
Code
Cause
shown
Immersion sensor
Err
(water-T°) defective
W.3
or outside the meas-
uring range (tem-
perature <0° C or >
85° C).
The tank has no
Err
water or the ACI
W.7
interface is open.
Water too hot
Err
(T03 > 80°).
W.9
Signal for off-peak
Err W.
times not identified.
11
Poor radio
Err
connection
W.13
Date/Time not set
Err
W.15
20
Warranty
Consequences
Unable to read the
water temperature:
no heating: no
heating.
No heating.
Risk of activating the
mechanical safety
device: no heating.
Cannot connect to
the appliance
Cannot connect to
the appliance
Use
Servicing
Troubleshooting
Check for connection and cor-
rect positioning of the sensor
(immersion sleeve).
Check resistor.
If necessary, replace the sensor
Fill the tank with water.
Check the ACI circuit (con-
nection AC, wiring and water
conductivity).
Check the connections.
Compare the sensor's meas-
ured value to the water
temperature.
Ensure the electric heating ele-
ment has not been activated in
continuous operation.
Reset the mechanical safety if
necessary.
Check the wiring the transmis-
sion of the off-peak time signal.
Change the activation settings.
Ensure the Cozytouch-box has
been switched on and is located
close to the water heater.
Heat pump off if programming
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