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Tab.40
Blocking codes
Blocking code
0
1
2
7
10
11
12
13
14
15
16
(1)
17
(1)
18
(1)
19
(1)
20
(1)
21
22
25
(1) These lockouts are not stored in the error memory
Tab.41
Error table with error codes
Error code
00
001
02
7611444 - v06 - 04032019
9.1.4
Blocking of the boiler
A (temporary) blocking mode is a boiler status, resulting from an abnormal
state.
The blocking code for the boiler is accessed via the parameter HM042 in
the Information menu.
Important
The boiler automatically returns to operation once the cause of the
blocking has been removed.
When one of the codes below is displayed, contact the professional
responsible for maintenance of the boiler.
Description
Parameter error
Maximum flow temperature exceeded
Maximum increase of the flow temperature has been exceeded
Maximum difference between the flow and return temperature exceeded
Blocking input is active
Blocking input active or frost protection active
Communication error with the boiler PCB
Communication error with the PCB
Hydraulic pressure too low
Gas pressure too low
Configuration error
Configuration error or default parameter table incorrect
Configuration error or PSU PCB not recognised
Configuration error or parameters dF and dU unknown
Configuration procedure active
Communication error with the SU PCB
No flame during operation
Internal fault in the gas/air unit
9.1.5
Locking of the boiler
If the blocking conditions are still present after several start-up attempts,
the boiler becomes locked out (also called error mode). The boiler can
only start operating again once the causes of the lock-out have been
rectified and after pressing the
The locking code can be accessed via the parameter HM041 in the
Information menu.
When one of the codes below is displayed, contact the professional
responsible for maintenance of the boiler.
Description
Parameter storage unit PSU not found
Safety parameters not OK
Flow temperature sensor short circuited
9 Troubleshooting
button.
53
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Troubleshooting
