Biasi M300V.2025 SM User Manual And Installation Instructions page 12

LCD FUNCTION
A
System out modulator
E79 +
control parameters
Internal error (usually
hardware) or problems
b
E89 +
with the mains electri-
cal supply (excessive
distortion of waveform).
b
Maximum number of
E91 +
lockouts reached.
Incorrect network fre-
E96
quency.
Power supply voltage
E97
low.
E99
Card not configured.
Primary
L1
D.H.W. mode.
Boiler
dashes light up in se-
quence to simulate a
scrolling motion (anti-
freeze protection acti-
vated).
When
the boiler, all icons and
digits light up (for 2 sec-
onds) to check opera-
tion of the LCD.
If the pressure is not
correct the value is dis-
played with the flashing
symbol.
Next maintenance due
date (factory setting 12
months). In the event of
an error, this has great-
er priority than mainte-
nance due date.
- 12 -
APPLIANCE DESCRIPTION
limitation in
stand-by, the
powering ON
LCD FUNCTION
Maintenance overdue.
In the event of an error,
this has greater priority
than maintenance due
date.
Pump active for the
post-circulation phase
(flashing PO + flashing
temperature).
Boiler
phase (flashing bP +
flashing temperature).
Boiler with D.H.W. pow-
er request.
The D.H.W. tempera-
ture is displayed.
Boiler with central heat-
ing request via room
thermostat.
Boiler with central heat-
ing power request with
connected remote.
in antifreeze