KYRA D 30 SI UNIT COND
45
A73022660
EN
Circulating pump
Faults must only be repaired by quali
fi
ed specialist technicians, work on electrical
connections must only be carried out by quali
fi
ed specialist electricians.
Faults
Causes
Cures
Pump not
working with
power switched
on
Faulty electrical fuse
Check fuses
No power to pump
Eliminate the power supply
interruption
Noisy pump
Cavitation due to
insuf
fi
cient delivery
pressure
Increase the system pressure
within the permissible range
Check the head setting and set a
lower head if necessary
The building
does not get
warm
Radiant panel thermal
power too low
Increase the delivery value
Set the adjustment mode to
Δ
p-c
instead of
Δ
p-v
Fault signals
• The fault LED signals a fault.
• The pump stops (depending on the fault), and makes cyclical attempts to restart
LED
Faults
Causes
Cures
Lights up red
Fault
Blocked rotor
Activate manual
restart or contact
Customer Service
Contact/winding
Faulty winding
Flashes red
Under/overvoltage Supply side
voltage too low/
high
Check the mains
voltage and
conditions of use.
Request Customer
Service
Excessive module
temperature
Too hot inside
module
Short circuit
Motor current too
high
Flashing red/green Turbine operation
The hydraulic
system of the
pumps is fed, but
the pump has no
mains voltage
Check the mains
voltage,
fl
ow rate/
water pressure
and also the
ambient conditions
Dry running
Air in pump
Overload
The motor turns
with dif
fi
culty.
Pump not running
according to
speci
fi
cations
(e.g. high module
temperature). The
speed is lower
than in normal
operation.x
Table. 3 - List of faults
Fault
code
Fault
Possible cause
Cure
A01
Bloqueo del que-
mador
Pump blocked
Replace
Faulty electric motor
Replace
Faulty oil valve
Replace
No fuel in tank, or water
on bottom
Re
fi
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
properly 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 transfor-
mer
Replace
Faulty electrode wires or
earthed
Replace
Electrode wires deformed
by high temperature
Replace and protect
Faulty valve or transfor-
mer electrical connec-
tions
Check
Broken pump-motor joint Replace
Pump inlet connected to
return pipe
Correct the connec-
tion
Faulty photoresistance
Replace
Dirty photoresistance
Clean the photore-
sistance
A02
Flame present sig-
nal 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
positioning and ope-
ration 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
