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77
BIOCLASS iC 66
Code
Alarm
Description
E-27
Fuel suction system
blockage.
If the level sensor continues to detect no fuel after 8
consecutive cycles, the
Fuel suction system
will lock out. To
unlock it press RESET button.
If this alarm occurs repeatedly contact the nearest official
technical assistance service.
E-28
Overpressure of water.
When the boiler water pressure exceeds 2.5 bar, this alarm is
displayed on the screen to warn of an excess of pressure in
the installation.
To restore the normal functioning of the boiler it is
recommended to drain the installation again up to 1 - 1.5 bar
If this alarm occurs repeatedly contact the nearest official
technical assistance service.
E-29
Fuel level sensor error.
Fuel level sensor is damaged or disconnected.
Contact your nearest official technical assistance service to
have it replaced.
E-30
Underfloor temperature sensor open
circuit,
Sr1
.
Underfloor temperature sensor is damaged or disconnected.
Contact your nearest official technical assistance service to
have it replaced.
E-31
Underfloor temperature sensor short-
circuited,
Sr1
.
E-32
Underfloor temperature sensor open
circuit,
Sr2
.
Underfloor temperature sensor is damaged or disconnected.
Contact your nearest official technical assistance service to
have it replaced.
E-33
Underfloor temperature sensor short-
circuited,
Sr2
.
E-34
Outdoor temperature sensor open
circuit,
Sext
.
Outdoor temperature sensor is damaged or disconnected.
Contact your nearest official technical assistance service to
have it replaced.
E-35
Outdoor temperature sensor short-
circuited,
Sext
.
E-36
DIP-switch wrongly changed.
DIP-switch selector of the boiler is changed when the boiler is
connected to the main supply. The boiler will be locked out
until unplug and plug the boiler again.
E-37
Communication error with
BIO
Hydraulic Kit
(not valid for BIOCLASS
iC 66).
Communication failure between boiler and the
BIO Hydraulic
Kit
.
If this alarm occurs repeatedly contact the nearest official
technical assistance service.
E-38
Lasting insufficient air depression during
ignition pre-purge step.
Check the air pressure sensor and that the burner and ashtray
are correctly fitted to the boiler.
If this alarm occurs repeatedly contact the nearest official
technical assistance service.
E-39
Insufficient fan speed.
Fan malfunction.
If this alarm occurs repeatedly contact the nearest official
technical assistance service.
E-40
Fan speed fall down.
E-41
Lasting fan speed fall down.