54
Response SE Combi -
Installation
87 FAULT FINDING
FAULT FINDING
In normal standby mode the first digit of the display indicates
the boiler sequence, and the last 2 digits the boiler flow
temperature.
Note.
To gain access to the Gas module control buttons
remove the cover plate . Refer to Frame 92.
The boiler Gasmodul control unit is equipped with a fault
diagnostic system.
Sequence
Function
0 .............................................. Standby - no heat request
1 .............................................. Fan pre-purge
2 .............................................. Ignition
3 .............................................. Burner on - CH
4 .............................................. Burner on - DHW
5 .............................................. Airflow switch not correct (not applicable)
6 .............................................. Burner off in CH mode (flow temperature
T
1
> 5
o
C
above set flow temperature
Tset
)
7 .............................................. Pump overrun - CH mode
8 .............................................. Pump overrun - DHW mode
9 ............ (Fault Condition) ...... Flow temperature
T
1
> 95
o
C
Return temperature
T
2
>
Tset
- 10
o
C
T
1
-
T
2
> 35
o
C
T
1
-
T
2
negative before lockout
Note.
The Gasmodul control unit is fitted with 3
fuses. If the boiler fails to operate, check these
first.
To gain access to the fuses refer to Frame 68.
IMPORTANT.
At the end of any fault finding, always refit the
control buttons cover plate.
F
AUL
T FINDING
Содержание Response SE
Страница 1: ......
Страница 57: ...57 Response SE Combi Installation 89 SHORT PARTS LIST SHORT LIST OF PARTS...