KYRA D 30 UNIT COND
A73022680
38
EN
fi
g.37
Condensate tank
To access the condensate tank, open the lower cover (Fig. 35).
fi
g.38
4.4 Troubleshooting
Diagnostics
The boiler is equipped with an advanced self-diagnosis system. In case of a boiler
fault,the display will fl ash together with the fault symbol (9 - fi g.1) indicating the
faultcode.
There are faults the cause permanent shutdowns (marked with the letter
“A”
): to
restoreoperation, just press the
RESET
button (3 - fi g.1) for 1 second or use the
RE-
SET
on the remote timer control (optional) if installed; if the boiler does not restart, it
is necessary to eliminate the fault indicated in the operation LEDs.
Other faults cause temporary shutdowns (marked with the letter
“F”
) which are
automatically reset as soon as the value returns within the boiler’s normal working
range.
Circulating pump diagnostics
Some faults linked to the circulating pump are signalled by the LED located around
thespeed selector (fi g.38).
fi
g.39
Table. 3 - List of faults
Fault
code
Fault
Possible cause
Cure
A01
Bloqueo del quemador
Pump blocked
Replace
Faulty electric motor
Replace
Faulty oil valve
Replace
No fuel in tank, or water on
bottom
Refi ll with fuel or suck
the water
Oil line feed valves closed
Open
Dirty fi lters (line-pump-nozzle) Clean
Pump unprimed
Prime and fi nd the cause
of unpriming
Ignition electrodes not proper-
ly adjusted, or dirty
Adjust or clean them
Nozzle clogged, dirty or
deformed
Replace
Unsuitable head and shutter
adjustments
Adjust
Faulty electrodes or earthed
Replace
Faulty ignition transformer
Replace
Faulty electrode wires or
earthed
Replace
Electrode wires deformed by
high temperature
Replace and protect
Faulty valve or transformer
electrical connections
Check
Broken pump-motor joint
Replace
Pump inlet connected to
return pipe
Correct the connection
Faulty photoresistance
Replace
Dirty photoresistance
Clean the photoresis-
tance
A02
Flame present signal
with burner off
Photoresistance short circuit
Replace the photore-
sistance
Extraneous light strikes the
photoresistance
Eliminate the light source
A03
Overtemperature
protection activation
Heating sensor damaged
Check the correct posi-
tioning and operation of
the heating sensor
No water circulation in the
system
Check the circulating
pump.
Air in the system
Vent the system
A04
Card parameter fault
Wrong card parameter setting
Check the card para-
meter and modify it if
necessary
F07
Preheater fault (the
contact does not close
in 120 seconds)
Preheater failure
Check the preheater
Wiring disconnected
Check the wiring
A09
Card parameter fault
Wrong card parameter setting
Check the card para-
meter and modify it if
necessary
F10
Delivery sensor 1 fault
Sensor damaged
Check the wiring or
replace the sensor
Wiring shorted
Wiring disconnected
F11
DHW sensor fault
Sensor damaged
Check the wiring or
replace the sensor
Wiring shorted
Wiring disconnected
F12
Card parameter fault
Wrong card parameter setting
Check the card para-
meter and modify it if
necessary
F14
Delivery sensor 2 fault
Sensor damaged
Check the wiring or
replace the sensor
Wiring shorted
Wiring disconnected
F16
Card parameter fault
Wrong card parameter setting
Check the card para-
meter and modify it if
necessary
F34
Supply voltage under
170V.
Electric mains trouble
Check the electrical
system
F35
Faulty mains frequency
Electric mains trouble
Check the electrical
system
F37
Incorrect system water
pressure
Pressure too low
Fill the system
Sensor damaged
Check the sensor
F39
External probe fault
Probe damaged or wiring
shorted
Check the wiring or
replace the sensor
Probe disconnected after acti-
vating the sliding temperature
Reconnect the external
sensor or disable the
sliding temperature
F40
Incorrect system water
pressure
Pressure too high
Check the system
Check the safety valve
Check the expansion
vessel
A41
Sensor positioning
Delivery sensor not inserted
in boiler shell
Check the correct posi-
tioning and operation of
the heating sensor
F42
Heating sensor fault
Sensor damaged
Replace the sensor
F47
System water pressure
sensor fault
Wiring disconnected
Check the wiring
Содержание KYRA D 30 UNIT COND
Страница 44: ......