Errors
Installation manual – Expansion kit
21
6
Table 6�1
List of K18 system controller error with expansion kit installed
Code
Description
Priority
Action
10
Outside sensor B9
6
A
30
Flow sensor 1 (1)
6
A
32
Flow sensor 2 (6)
6
A
50
DHW sensor 1 (2)
6
A
60
Room sensor 1 (3)
6
B
65
Room sensor 2 (4)
6
B
68
Room sensor 3 (7)
6
B
83
BSB, short-circuit (5)
8
C
84
BSB, address collision
3
D
103
Communication failure
3
C
127
Legionella temp
6
E
324
BX same sensors
3
F
330
BX1 no function
3
G
331
BX2 no function
3
G
332
BX3 no function
3
G
333
BX4 no function
3
G
441
BX31 no function
3
G
442
BX32 no function
3
G
443
BX33 no function
3
G
444
BX34 no function
3
G
173
Active alarm 3 contact
6
H
(1) Probe B1
(2) Probe B3
(3) Room unit 1
(4) Room unit 2
(5) Shown in this form in the error log (see par. 6.2
p. 22). The information
screen displays the text "
No connection
" without error code.
(6) Probe B12
(7) Room unit 3
6.1.1
Troubleshooting measures
A: Codes 10, 30, 32, 50
For codes 10, 30, 50 refer to Paragraph 6.1 of the System Control-
ler Installation manual. For code 32, proceed as follows:
1� Memorize the sensors:
Access the
Engineer
menu level, then the Configura-
tion menu; select parameter 6200 (Save sensors),
set it to yes and confirm.
The value of parameter 6200 which displays at the end
of the configuration procedure will still be no; this is
normal (this setting executes an action, i.e. memoriza-
tion of the actually installed sensors).
Wait for a minute.
2� If step 1 does not resolve the problem:
Check the connection of the sensor in question, cor-
rect it and memorize the sensor again as indicated in
step 1.
3� If step 2 does not resolve the problem:
Disconnect the sensor from the RVS21.826 controller
and measure the resistance between the cable's two
wires. If the measurement indicates a short or open
circuit, identify and resolve the problem, which may
be due to the sensor itself or its wiring. Once the
problem has been resolved, reconnect the sensor and
memorize it again as indicated in step 1.
4� If step 3 does not resolve the problem:
Access the
Engineer
menu level, then the Configu-
ration menu; select parameter 6391 (Sensor input
BX31); check that it is set to the value used by pa-
rameter 6455; if not, remaining in the
Engineer
menu
level, Configuration menu, select parameter 6455
(Function mixing group 3) and set it to Heating cir-
cuit 2.
Run sensor memorization again as indicated in step 1.
ATTENTION: This sensor is used only in the presence of
the mixed heating circuit 2, otherwise no
sensor must be connected to input BX31.
If a sensor is connected to this input by mis-
take, remove it, then run sensor memorisa-
tion again as described in step 1.
5� If step 4 does not resolve the problem:
Power the system controller off and on again; if the
problem persists, contact the Robur Technical Sup-
port Centre.
B: Codes 60, 65, 68
1� Memorize the sensors:
Access the
Engineer
menu level, then the Configura-
tion menu; select parameter 6200 (Save sensors),
set it to yes and confirm.
The value of parameter 6200 which displays at the end
of the configuration procedure will still be no; this is
normal (this setting executes an action, i.e. memoriza-
tion of the actually installed sensors).
Wait for a minute.
2� If step 1 does not resolve the problem:
Check the communications between the controller
and the room unit/s and their configuration (see par.
5.1.7
p. 19). Resolve the problem, then run sensor
memorization again as indicated in step 1.
3� If step 2 does not resolve the problem:
Power the system controller off and on again; if the
problem persists, contact the Robur Technical Sup-
port Centre.
C: Codes 83, 103
Refer to Paragraoh 6.1 of the System Controller Installation
manual.
D: Code 84
This problem occurs when multiple room units are connected
and some of them are configured as the same type of device
(e.g., two room units both as room unit 1).
1� Resolve the problem as indicated in par. 5.1.7 p. 19, Case
3, to configure the room units correctly.
2� If step 1 does not resolve the problem:
Power the system controller off and on again; if the
problem persists, contact the Robur Technical Sup-
port Centre.
E: Code 127
Refer to Paragraoh 6.1 of the System Controller Installation
manual.
F: Code 324
This error is generated if two or more BX temperature sensors
have been configured to a single function.
1� Check the configuration:
Access the
Engineer
menu level, then the Configura-
tion menu, and select parameters:
- 6014 ( Function mixing group 1); set it to
Multifunctional.
- 5930 (Sensor input BX1); check that it is set to
Outside sensor B9; if not, set it to that value.
- 5931 (Sensor input BX2); check that it is set to
none; if not, set it to this value.
- 5932 (Sensor input BX3); check that it is set to
DHW sensor B3; if not, set it to this value.
- 5933 (Sensor input BX4); set it to none.
