21
Troubleshooting
Accessories
Outside sensor AF
Order no. AF, 5 kΩ: 99 679 030
Scope of supply
Outside sensor, screw and dowel
Position of installation
▷
Ideally on a wall facing north or north-east
▷
Approx. 2.5 m above the ground
▷
Not above windows or air shafts
Installation
1
Pull cover off sensor.
2
Fasten sensor with enclosed screw.
For electrical connections, see page 18 (Expert - Electrical
Sensor values
Temperature
[°C]
5 kΩ NTC:
[Ω]
Temperature
[°C]
5 kΩ NTC:
[Ω]
-40
167835
10
9952
-30
88340
20
6247
-20
48487
25
5000
-10
27648
30
4028
0
16325
40
2662
50
1801
Troubleshooting
? Fault
! Cause
•
Remedy
When a fault occurs, the error number is indicated in the display
(Example:
E 81
).
You can find the error numbers in the heat source instructions.
?
The display shows an error no. between
E001
and
E255
.
!
Boiler error. If there is an arrow in the display pointing to “Reset”,
the error can be deleted using the remote control.
•
Turning the rotary knob sends a reset telegram to the OT boiler.
The boiler is automatically restarted.
!
If there is another arrow pointing to
Water pressure too low,
the water pressure can be raised using the remote control.
•
Turning the rotary knob tops up the water in the boiler. (Condi-
tion: The boiler supports the “Water Filling Procedure”, see heat
source instructions.)
?
The display shows error no.
E 81
.
!
EEPROM error. An invalid parameter has been replaced by the
default value.
•
Check parameter values.
•
Switch mains power off and on again to reset the error no.
