16
Fault Cause Remedy
Temperatures cannot be
set > 43 °C
Dynamic anti-scald protection is on Dynamic anti-scald protection goes off automatically 2 minutes after the end
of drawing water
The instantaneous water heater is
not responding, weak display on
the radio remote control unit
Low batteries Change batteries in the radio remote control unit
“CON” permanently displayed on
the radio remote control unit
Radio remote control unit not
logged into the heater
Qualified installer
: Log in the radio remote control unit
Remote control unit is out of the
transceiver module’s range
Reduce the distance between the radio remote control unit and the heater
Transceiver module not correctly
connected to the heater
Qualified installer
: check the connection of the transceiver module to
the heater
Table 2
5. Troubleshooting on the radio remote control for the user and the qualified installer
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