Adjusting Maximum Heating Power; Troubleshooting Service Faults - Baxi LUNA DUO-TEC IN+ Instruction Manual For Users And Fitters

15.1 ADJUSTING MAXIMUM HEATING POWER

The maximum heating power of the boiler can be reduced to suit the requirements of the heating system it serves. A table showing
parameter P13 values according to the desired maximum power model is shown below for each single boiler
To access and edit parameter P13 values, proceed as described in the PARAMETER SETTINGS section.
Boiler model - PARAMETER P13 (%) / Heating output (kW)
kW 1.12
2 0
10
3
3,5
15
4
20
5 30
6 40
7 50
8 60
9 70
10 80
12 100
14
16
18
20
22
24

16. TROUBLESHOOTING SERVICE FAULTS

If a fault occurs, the display shows the
The fault is identified by an error code followed by E letter and is not resettable.
Call an authorized Service Centre.
FAULTS INDICATED ON THE BOILER DISPLAY
The faults shown on this display are identified with the symbol
complete list of faults, see the following table.
If appears on the display of the CONTROL BOX the fault must be RESET manually.
To RESET the boiler, press and hold down
the Authorised Service Centre.
Description of fault
09
Gas valve connection error
10
External probe sensor faulty
12
Hydraulic differential pressure switch switching failure
13
Hydraulic differential pressure switch contacts stuck
15
Gas valve control error
18
Hydraulic circuit automatic filling in progress
19
Fault in system filling phase
20
NTC flow sensor faulty
28
NTC fumes sensor faulty
40
NTC return sensor faulty
NTC domestic hot water sensor faulty (only for heating-only
50
model with storage boiler)
1.24 24
0 0
2 2
7 7
12 12
17 17
22 22
27 27
32 32
41 41
51 51
61 61
71 71
80
80
90
100
symbols flashing together with the <ERROR> writing.
for 2 seconds. If faults are displayed frequently, call
27
28
0
4
8
13
17
21
25
33
42
50
58
67
75
86
and a number (fault code). For a
Service action
Check the connections between the gas valve and the
electronic board.
Check the sensor (*).
Check correct operation of the pressure switch and the wiring.
See the actions indicated in E12
Check the connections between the gas valve and the
electronic board. If necessary, replace the electronic board.
Wait for the end of the filling cycle.
Check the filling tap.
Check the sensor (**).
Check the continuity of the probe wiring.
Make sure the wiring has not shorted.
Check the fumes NTC probe (***).
Check the continuity of the probe wiring.
Make sure the wiring has not shorted.
See the actions indicated in E20
See the actions indicated in E20
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