Problems
41
Tronic 4000 T – 6721843807 (2022/06)
8
Problems
DANGER
Risk of electric shock!
▶ Switch off the power supply before carrying out any work
on the appliance.
▶ Installation, repairs and maintenance must only be carried
out by specialised and qualified persons.
The following table describes the solutions for possible problems
(these must only be carried out by qualified contractors).
Code
Problem
Solutions
03
Appliance without
water indicated on the
display.
▶ Turn off the electricity on the switchboard.
▶ Make sure that the electricity supply is working correctly.
1)
▶ Check that the appliance with filled with water. If it is not, fill the appliance tank.
▶ Check the safety thermostat on the base plate and reset it, if necessary.
▶ Turn on the electricity.
▶ Reset the 'heating appliance without water' error notice by pressing the buttons
g
and
h
at the same time.
04
Unexpectedly
prolonged heating time.
▶ Turn off the electricity on the switchboard.
▶ Check the safety thermostat on the base plate and reset it, if necessary.
▶ Check the heating element and the connections.
05 or 01
Memory fault or sensor
error.
▶ Reset the error notice by pressing the buttons
g
and
h
at the same time.
▶ Turn off the electricity on the switchboard.
▶ Check that the appliance with filled with water. If it is not, fill the appliance tank.
▶ Check the safety thermostat on the base plate and reset it, if necessary.
▶ Switch on the appliance.
▶ If error 1 persists, replace the display.
▶ If error 5 persists, replace the thermostat.
No notices showing on
the display after
connecting the
electrical infeed.
▶ Check the infeed wiring is correct and that there is an electrical current.
▶ Switch off the electrical infeed, check that the ribbon cable between the display and the
control unit is correctly connected and switch it back on.
If the problem persists,
▶ First replace the cable between the control unit and the display, then the display and
finally the control unit.
▶ Replace the thermostat.
The water is cold in
SMART mode.
▶ A sudden and significant increase in hot water consumption can sometimes cause cold
water.
▶ Change the SMART mode to manual mode and select the desired temperature level.
Later on, you can return to SMART mode.
If the problem occurs frequently,
▶ Increase the comfort level in SMART mode or change, from time to time, to manual mode.
The water is cold in
manual mode.
▶ Proceed as indicated for unexpectedly prolonged heating time (error code 4).
