cod. 3541T630 - Rev. 04 - 12/2021
112
EN
DORA
200 HT - 260 HT
9. TROUBLESHOOTING
CAUTION: Do not attempt to repair your appliance Yourself.
The followings checks are reserved for qualified personnel only.
Fault
Recommended action
The equipment does not switch on
• Check that the product is actually powered by the mains.
• Disconnect the equipment then reconnect it after a few minutes.
• Check the power cable inside the product.
• Check that the fuse on the power board is intact. If not, replace it with an IEC-60127-
2/II certified time-delay 5 A fuse (T5AL250V).
Water cannot be heated via the heat pump in
ECO or AUTOMATIC mode
• Switch the equipment off, then switch it on again after a few hours.
• Disconnect the equipment from the mains, drain part of the water contained in the
tank (approx. 50%) then refill it and switch the equipment on again in ECO mode.
The heat pump remains on without ever
stopping
• Without drawing hot water from the product, check that in a few hours heating via
heat pump occurs positively.
Water cannot be heated via the integrated
heating element in AUTOMATIC mode
• Switch off the equipment and check the safety thermostat of the heating element
inside the equipment and reset it if necessary. Then switch on the equipment in
AUTOMATIC mode.
• Disconnect the equipment from the mains, drain part of the water contained in the tank
(approx. 50%) then refill it and switch the equipment back on again in AUTOMATIC
mode.
• Access the installer menu and increase the value of parameter P32, e.g. to 7°C.
• Check that the heating element safety thermostat has not intervened (see “9.2
Heating element safety thermostat reset” on page 113)
The product cannot be controlled via APP
• Check that there is Wi-Fi network coverage, e.g. via smartphone where the product is
installed, then carry out the configuration procedure again with the router. Make sure
the Wi-Fi symbol on the display is lit up steady.