Display
11
Display
11.1 Faults that are shown on the display
Installation, maintenance and repairs may only be carried out by an
authorised contractor. The following table lists the fault codes and their
remedies.
11.2 Displays
Display
Description
Solution
E01
Fault in the top storage tank temperature sensor
Notify authorised contractor
E02
Fault in the bottom storage tank temperature sensor
Notify authorised contractor
E03
Fault in the temperature sensor at the air inlet
Notify authorised contractor
E04
Temperature in storage tank
≥
80 °C
Eliminate cause of fault. If the fault continues to occur, notify
an authorised contractor.
E05
Not used
Notify authorised contractor
E06
Hold down setting buttons longer than 30 seconds
Release buttons
E07
Not used
Notify authorised contractor
E08
Not used
Notify authorised contractor
E09
Incorrect system purging
Water shortage for long period (> 12h)
Notify authorised contractor
Reset the system
E10
Resistor faulty
Fault in the high limit safety cut-out
Adjusted temperature in the thermostat below the set point
temperature in the tank
Notify authorised contractor
E11
Fault in the fan
High pressure loss in the air ducts
Leaks in refrigerant circuit
Fault in the compressor
Fault in the expansion valve
Fault in the dry filter
Notify authorised contractor
Table 10 Fault codes
Display
Description
Note
LEG
Thermal disinfection process running
When temperature reaches 70 °C, the appliance goes back to
the mode previously selected
HOT
Temperature of inlet air
≥
35 °C
Automatic stop of „Heat pump“ mode when air inlet
temperature is lower than 5 °C or higher than 35 °C
COLD
Temperature of the inlet air
≤
+5 °C
Table 11 Display indications
Bosch Thermotechnik GmbH
Junkersstrasse 20-24
D-73249 Wernau
www.junkers.com
