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Overview
4. Fault diagnostic.
In the event of a fault, or when no heat or steam is issued from the filling point, switch off the power supply
and inform your installer.
Troubleshooting operations must be carried out exclusively by a professional.
4.1. Display of error codes.
The alarm can be turned off or reset by pressing OK.
Code displayed
Water temperature
Error 03
sensor defective or
No water in the tank
Error 07
Water temperature
Error 09
Water temperature
Water too cold
Error 21
sensor defective or
Error 22.1
out of range (-20 to
Bottom evaporator
sensor defective or
Error 22.2
out of range (-20 to
74
Installation
Causes
Not possible to read
out of range
or open ACI link
mechanical safety:
too high (T>80°C)
too cold (T<5°C)
Air inlet sensor
defective or out of
range (-20 to 60°C)
Top evaporator
110)
110)
Use
Consequences
Check the connection (A1 mark) of the water
the water
temperature sensor (thermowell). Check the
temperature: no
sensor resistance (see table below).
heating.
If necessary, replace the sensor.
Fill the tank with water.
No heating
Check the wiring connection (AC mark), the
conductivity of the water.
Check if the actual water temperature at the
water outlet is high (T>80°C).
Check the connection (A1 mark) and the
Risk of triggering
position of the water temperature sensor
(thermowell), it must be on the stopper.
no heating
Check that the electrical backup is not running
continuously. Reset the mechanical safety if
necessary.
HP stopped.
Automatic reset when T>10° C. Check the
Heating in ELEC.
conformity of the installation (frost-free room).
Check the connections (A4 mark) and the
HP stopped.
positioning of the incoming air sensor. Check
Heating in ELEC.
the sensor resistance (see table below). If
necessary, replace the sensor wiring bundle.
Check the connections (A4 mark) and the
correct positioning of the sensor on its tube.
HP stopped.
Check the fan's operation ensuring that it turns
Heating in ELEC.
freely and without stopping (mark M1) and the
power supply on the terminal block
Check the sensor resistance (see table below).
Check the connections (A4 mark) and the
correct positioning of the sensor on its tube.
HP stopped.
Check the fan's operation ensuring that it turns
Heating in ELEC.
freely and without stopping (mark M1) and the
power supply on the terminal block
Check the sensor resistance (see table below).
Maintenance
Troubleshooting
Warranty
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