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10 CONTROL PANEL ELECTRONIC P .C .B .
10 .1 Function
F
E
D
Figure 10 .1
A C.H. temperature increase key
B C.H. temperature reduce key
C Reset/Stand-by/Winter/Summer key
D D.H.W. temperature reduce key
E D.H.W. temperature increase key
F Display
The Control panel electronic p.c.b. can give to the service 3 lev-
els of informations:
• Normally information
• Info modality
• Function modes setting modality
10 .2 Normally information
KEY
The symbol indicates that the boiler can be di-
RESET
rectly reactivated by the user, by pressing the
reset button.
The symbol indicates that the fault requires in-
tervention on behalf of specialised technical as-
sistance.
All symbols represented with lines that surround
them, indicate that the symbol is flashing.
SIGNAL DISPLAYED BY THE LCD
LCD
FUNCTION
Er 01 + RESET
Lack of burner ignition on safety lockout
Er 02 + RESET
Safety thermostat intervention lockout
Er 03 + RESET
General lockout
Faulty primary circuit (no water or ab-
Er 04 +
sence of flow)
Er 05 +
Faulty fan control system
Er 06 +
Faulty C.H. temp. probe NTC
Er 07 +
Faulty D.H.W. temp. probe NTC
Er 08 +
Faulty external temp. probe NTC
Er 09 +
Faulty flue temp. probe NTC
Er 10 + RESET
Flue probe intervention lockout
Flame detection error (An flashing + er-
ror flashing number)
Er 11 + RESET
Flame detection error
CONTROL PANEL ELECTRONIC P.C.B.
A
B
C
LCD
FUNCTION
Faulty central heating temp. probe NTC
Er 12 +
(return)
Er 13 +
DT delivery-return >40K
Faulty pump or primary temperature
Er 14 + RESET
above 105° C
Absence of flow from temperature gradi-
Er 14 +
ent (>2k/s)
Domestic hot water inlet probe failure (if
Er 19 +
present)
Er 25 + RESET
Flame detection error
Er 69
Wiring error lockout
Primary circuit temp. limit during D.H.W.
Li 01
operation
Boiler Stand-By, hyphens are turned on
in sequence to simulate running /anti-
freeze protection activated)
Filling request:
The boiler works regularly and the dis-
play shows all the icons, but the signal
FL is flashing every 1 sec.
Boiler waiting for heat request
Boiler in summer mode (D.H.W.)
The primary circuit temperature is dis-
played.
Boiler in winter mode (C.H. & D.H.W.)
The primary circuit temperature is dis-
played.
Boiler on demand for D.H.W. power.
The D.H.W. temperature is displayed.
Boiler on demand for C.H. power.
Burner ignition (spark)
Flame present (Burner on)
Pre-heating function 3 stars D.H.W.
comfort.
This information is not displayed. It will
be possible to check its state in the sec-
tion "INFO" value "cF" (the signal "cF" is
alternated to the C.H. temperature value
until the end of this function).
You can enter the function pushing the
buttons D and E together.
The function is confirmed showing ON or
OFF alternating for 5 sec.
This function is always active at every
hour (it's not possible to set the time slots
unless a remote control is connected).
Boiler in anti---freeze phase (bP flashing
+ temperature flashing)
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