DOMUSA TEKNIK BIOCLASS iC 150, Installation And Operating Instructions Manual

Page: 73 / 80

73 BIOCLASS iC 150
code ALARM DESCRIPTION
E-18 Water pressure sensor fault.
The water pressure sensor is damaged or
disconnected. Please contact your nearest official
Technical Assistance Service to have it replaced.
E-19 Low water pressure.
The water pressure of the installation is below the
minimum pressure set in parameter P.19 of the
"Technical Menu" (default value 0.5 bar). The boiler
will cut out. To unlock it, fill the installation at a
pressure of between 1 and 1.5 bar.
This alarm may be set off due to the water having
been drained from the boiler or leakage in the
installation.
If this alarm occurs repeatedly, please contact the
nearest official Technical Assistance Service.
E-20 Safety valve fault.
The water pressure of the installation is higher than
3.5 bar.
The pressure safety valve is broken. The boiler will
lock out until the pressure of the installation drops
from 2.5 bar. The installation should be drained until
the pressure of the installation is between 1 and 1.5
bar.
If this alarm occurs repeatedly, please contact the
nearest official Technical Assistance Service.
E-21 Air pressure sensor fault
The air pressure sensor of the burner is broken or
disconnected. Contact your nearest official technical
assistance service to have it replaced.
E-22 Excessive air depression in the furnace.
The air depression in the furnace is excessive. The
burner will lock out until the depression is correct.
If this alarm occurs repeatedly, please contact the
nearest official Technical Assistance Service.
E-23 Excessive air overpressure in the furnace.
The air overpressure at the inlet to the burner is
excessive. The burner will lock out until the
depression is correct.
If this alarm occurs repeatedly, please contact the
nearest official Technical Assistance Service.
E-25 Erroneous calibration.
An incorrect parameter value has been entered or it
has been set to Off.
If this alarm occurs repeatedly, please contact the
nearest official Technical Assistance Service.
E-26
Communication error with the electronic
control of the fuel aspiration system.
There has been a communication error between the
boiler and the electronic control of the fuel
aspiration system , locking out its operation. When
communication is restored operation will unlock
automatically.
If this alarm occurs repeatedly, please contact the
nearest official Technical Assistance Service.
E-27 Lock-out of the fuel suction system.
The number of consecutive fuel feed cycles has been
exceeded, locking-out the operation of the fuel
suction system . Inspect the automatic fuel feed
installation, ensuring that it is not empty and that
there is no fuel clogged in any of the pneumatic
piping. To unlock the alarm, press the RESET button
on the boiler handle.
If this alarm occurs repeatedly, please contact the
nearest official Technical Assistance Service.