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ALARM CODES
BioClass HC
boiler is equipped with an electronic controller that performs continuous self-testing to
detect any boiler malfunctioning. When it detects a functioning error, this is indicated by an alarm
code on the display. The table below shows the list of the alarm codes:
CODE ALARM
DESCRIPTION
E-01
Boiler temperature sensor open circuit,
S
c
.
The boiler sensor is damaged or disconnected.
Contact your nearest official technical assistance service to
have it replaced.
E-02
Boiler temperature sensor short-circuited,
S
c
.
E-03
R
a
. resistance open circuit
The
R
a
. resistance is disconnected.
Contact your nearest official technical assistance service to
have it replaced.
E-04
R
a
. resistance short-circuited
E-05
Overheating in fuel entrance tube,
Te
.
The security thermostat of fuel entrance tube has exceeded
the safety temperature of 80 ºC. The boiler will lock out. To
unlock the boiler wait the temperature drops, press the
button on the safety thermostat and restore by pressing
RESET button.
If this alarm occurs repeatedly contact the nearest official
technical assistance service.
E-06
Ignition failure.
Check the fuel content in the hopper or calibrate the feed
auger.
If this alarm occurs repeatedly contact the nearest official
technical assistance service.
E-07
Burner ash cleaning system start step error.
These alarms occur when a bad running of the burner ash
cleaning system is detected.
If this alarm occurs repeatedly contact the nearest official
technical assistance service.
E-08
Burner ash cleaning system final step error.
E-09
Burner ash cleaning system switch error, FCp.
E-10
Boiler water overheating.
The water in the boiler has exceeded the safety temperature
of 100 ºC. The boiler will lock out. The boiler will be unlocked
automatically when the boiler temperature drops below 90
ºC.
If this alarm occurs repeatedly contact the nearest official
technical assistance service.
E-11
Safety thermostat, Ts.
The water in the boiler has exceeded the safety temperature
of 110 ºC. The boiler will cut out.. To unlock it, wait until the
boiler drops below 100 ºC and press the button on the safety
thermostat.
If this alarm occurs repeatedly contact the nearest official
technical assistance service.
E-12
Burner switch, FCq.
Check if the burner is correctly fitted to the boiler.
If this alarm occurs repeatedly contact the nearest official
technical assistance service.
E-13
Insufficient air depression.
Check the correct running and connection of 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-14
Air depression fall down.
E-15
Insufficient air depression during ignition
pre-purge step.
E-18
Water pressure sensor fault.
The water pressure sensor is damaged or disconnected.
Contact your nearest official technical assistance service to
have it replaced.
