Biasi ActivA Plus Service Manual page 30

Constantly illuminated: boiler antifreeze
active
Antifrostat
Constantly illuminated: (system anti-
freeze active
SIGNAL DISPLAYED BY THE LCD
LCD FUNCTION
E01
Lack of burner ignition on safety lockout
+
E02
Safety thermostat intervention lockout
+
E03
General lockout
+
Little pressure in the system or pressure
E04
+
transducer disconnected
E05
Faulty fan control system
+
E06
Faulty c.h. temp. probe NTC1 or NTC2
+
E07
Faulty d.h.w. temp. probe NTC
+
E08
Faulty external temp. probe NTC (with K set)
+
E09
)DXOW\ ÀXH WHPS SUREH 17& LI SUHVHQW
+
E10
Flue probe intervention lockout (if present)
+
)ODPH GHWHFWLRQ HUURU $Q ÀDVFKLQJ  HUURU
ÀDVKLQJ QXPEHU
E12
Failure return NTC probe
+
E13
'7 GHOLYHU\UHWXUQ ! . LI IRUHVHHQ
+
Faulty pump or primary temperature above
E14
+
105°C
$EVHQFH RI ÀRZ IURP WHPSHUDWXUH JUDGLHQW
E14
+
!.V
E19
Faulty d.h.w. temp. probe inlet (if present)
+
E20
Lockout EVG
+
E21
Lockout EVG
+
E22
Lockout EVG
+
E23
Lockout EVG
+
E24
Abnormal combustion ignition lock
+
E25
Abnormal combustion operation lock
+
E69
Wiring error lockout
+
E99
%RLOHU QRW FRQ¿JXUHG
+
Primary circuit temp. limit during D.h.w. op-
L 01
eration
- 30 -
CONTROL PANEL ELECTRONIC P.C.B.
LCD FUNCTION
Boiler Stand-By, hyphens are turned on in
sequence to simulate running (antifreeze
protection activated)
In the case of incorrect pressure the value is
YLVXDOLVHG ZLWK D ÀDVKLQJ V\PERO
When pressure is achieved the symbol re-
mains on for 15 s and then disappears.
Flashing:
KLJK SUHVVXUH !  EDU 21  EDU 2))
intermediate pressure
0.15 < P < Pon rising
0.15 < P < (Pon-0.2) decreasing;
pressure critical
0.00 < P < 0.15 bar
Pump activated for the post-circulation
SKDVH 3R ÀDVKLQJ  WHPSHUDWXUH ÀDVKLQJ
%RLOHU LQ DQWLIUHH]H SKDVH E3 ÀDVKLQJ 
WHPSHUDWXUH ÀDVKLQJ
Boiler on demand for d.h.w. power.
The d.h.w. temperature is displayed.
Boiler requesting heating power and remote
control connected.
Set c.h.
(all other symbols are disabled)
Set D.h.w.
(all other symbols are disabled)
Delayed burner ignition for setting the sys-
tem (the hourglass symbol turns on)
Boiler in chimney sweep in function.
The activation of the chimney sweep occurs
FRQ¿JXULQJ WKH SDUDPHWHU 3  DQG LV
visualized:
LP = minimum dhw
hP = minimum heating
cP = maximum heating
dP = maximum dhw
The transition occurs with keys A (increase)
and B (decrease) dhw temperature.
The writing on the display alternates.