Bosch TR5500T Series Assembly And Operating Instructions Manual page 18

In case of fault
Display (LED) Status
Fast
Anode Service
Heating
1
On Flashing Off On
On Flashing Off On
On Flashing Off On
On Flashing Off On
On Flashing Off –
On Flashing Off On
On Flashing Off On
Off Flashing Off –
On Flashing Flashing –
(*) the third LED indicates whether or not the off-peak contact was
correctly installed.
Third LED "on" if off-peak contact on.
Third LED "off" if off-peak contact out.
If the third LED is off during the off-peak period, the fault lies in the
installation of the off-peak contacts.
When installing the device without off-peak contact, the third LED is
always on.
Note
In an "error condition", the device is out of order.
In the case of an "anode fault" or a "potentiometer fault", the device
can be manually activated for a heating cycle by pressing the "fast-
heating" button . In this case the device heats until a water
temperature of 40°C is reached. The device heats at the installed power
for single-power and boiler mode connections, for double-power
connections it heats according to the basic load of the connection, at
1kW, 2kW or 3kW.
If the fault could not be remedied, please contact the customer
service operators.
Note
When the device is full with water and functions normally (there are no
faults apparent), the device cannot be separated from the mains
voltage, otherwise the external power source anode stops functioning
and the device rusts through. For complaints of this nature, the warranty
and guarantee do not apply.
After the assembly, please present the user with the instructions for
use and explain the device to them.
18
Heat content display
indicators (LED)
2 3 4 5 6
See
Internal
On below – On On
electronic failure
(*)
See The reservoir has
– below – – On heated without
(*) water
See Water
– below – On – temperature in
(*) reservoir too hot
See
Internal
– below On – –
electronic failure
(*)
See
Internal
On below On – –
electronic failure
(*)
See
Temperature
– below – – –
sensor fault
(*)
See Temperature fault
On below – – – between heating/
(*) sensor
See
– below On – – Anode fault
(*)
See
Temperature
– below – – –
selector fault
(*)
Cause / Fault
Electronic board locked, wait 15mins and then reset
Turn the device off, check the cause of the water
shortage (leakage, faulty water connection).
If the problem remains contact technician
Reset, wait until the reservoir has cooled.
If the problem remains please contact technician
Reset, if the problem remains please contact
technician
Reset, if the problem remains please contact
technician
Reset, if the problem remains please contact
technician
Reset, if the problem remains please contact
technician
Check that the reservoir is filled. If the problem
remains please contact technician
Reset not possible, please contact technician
Solution
TR5500T – 6 720 875 993 (2017/12)
Who
Techni-
cian
Techni-
cian
Techni-
cian
Techni-
cian
Techni-
cian
Techni-
cian
Techni-
cian
Techni-
cian
Techni-
cian