284
cod. 3540000251 - Rev. 00 - 03/2024
EN
ALHENA C
F50 - F53
Limit thermostat fault with
parameter b06 = 1 or 4
No/poor water circulation
in the system
Check the circulating pump and hea-
ting system
Air in the system
Vent the system
Incorrect parameter
Check the correct parameter setting
A64
Maximum number of con-
secutive Resets excee-
ded
Maximum number of con-
secutive Resets exceeded
Disconnect the power supply to the
boiler for
60 seconds
and then reins-
tate the boiler
F62
Calibration required
New card or boiler not yet
calibrated
Do
complete manual calibration
A88
Specific combustion con-
trol errors or gas valve
Calibration activation with
burner lit.
Combustion problem,
faulty gas valve or PCB
Reset the fault and do
complete
manual calibration
.
If necessary, replace the gas valve or
PCB.
F65 ÷ F98
Specific combustion con-
trol errors
Fume ducts obstructed.
Low gas pressure.
Condensate trap blocked.
Fumes recirculation or
combustion problem
Check that the fume ducts and the
condensate trap are not blocked.
Check the correct gas supply pres-
sure.
Do a manual calibration to adjust the
CO
2
. If necessary, do a complete
manual calibration.
If the problem persists, replace the
PCB.
A65 ÷ A97
Specific combustion con-
trol errors
Fume ducts obstructed.
Low gas pressure (A78 -
A84).
Condensate trap blocked.
Fumes recirculation or
combustion problem
Check that the fume ducts and the
condensate trap are not blocked.
Check the correct gas supply pres-
sure.
Do a manual calibration to adjust the
CO
2
. If necessary, do a complete
manual calibration.
If the problem persists, replace the
PCB.
A98
Too many SW errors or
error occurred during
board replacement
Board replacement
Reset the fault and proceed with
complete manual calibration.
Fume ducts obstructed.
Low gas pressure.
Condensate trap blocked.
Fumes recirculation or
combustion problem.
Initially solve the problem, reset the
fault and check correct ignition.
Do a complete manual calibration
and, if necessary, replace the PCB.
A99
Generic error
PCB hardware or software
error
Reset the fault and check for correct
ignition. Do a complete manual cali-
bration and, if necessary, replace the
PCB.
F96
Specific flame combustion
error
Unstable flame or unstable
flame signal after ignition.
Check the gas supply, fume ducts
and condensate drain. Check the
correct position and state of the elec-
trode After about 3 minutes the error
is reset.
A44
Multiple requests error
Repeated short-term
requests
Check if there are pressure peaks in
the DHW circuit. If necessary, modify
parameter b11.
A80
Parasite flame signal after
valve closing
Electrode problem.
Gas valve problem.
PCB problem.
Check the correct position and condi-
tion of the electrode.
Check the PCB.
Check the gas valve and replace it if
necessary.
Fault code
Fault
Possible cause
Cure
Содержание ALHENA C
Страница 31: ...31 cod 3540000251 Rev 00 03 2024 IT ALHENA C Esempio di installazione tipo C 10 3 fig 40 min 0 6 m max 10 m 5...
Страница 32: ...ALHENA C 32 cod 3540000251 Rev 00 03 2024 IT Esempio di installazione tipo C 11 3 fig 41 min 0 6 m max 10 m 5...
Страница 91: ...91 cod 3540000251 Rev 00 03 2024 ES ALHENA C Ejemplo de instalaci n tipo C 10 3 fig 40 min 0 6 m max 10 m 5...
Страница 92: ...ALHENA C 92 cod 3540000251 Rev 00 03 2024 ES Ejemplo de instalaci n tipo C 11 3 fig 41 min 0 6 m max 10 m 5...
Страница 135: ...135 cod 3540000251 Rev 00 03 2024 RO ALHENA C Urm nd indica iile din fig 20 pute i accesa siguran a fuzibil F fig 20 F...
Страница 149: ...149 cod 3540000251 Rev 00 03 2024 RO ALHENA C Exemplu de instala ie de tip C 10 3 fig 40 min 0 6 m max 10 m 5...
Страница 150: ...ALHENA C 150 cod 3540000251 Rev 00 03 2024 RO Exemplu de instala ie de tip C 11 3 fig 41 min 0 6 m max 10 m 5...
Страница 207: ...207 cod 3540000251 Rev 00 03 2024 PL ALHENA C Przyk ad instalacji typu C 10 3 wygl d 40 min 0 6 m max 10 m 5...
Страница 208: ...ALHENA C 208 cod 3540000251 Rev 00 03 2024 PL Przyk ad instalacji typu C 11 3 wygl d 41 min 0 6 m max 10 m 5...
Страница 265: ...265 cod 3540000251 Rev 00 03 2024 EN ALHENA C Example of installation type C 10 3 fig 40 min 0 6 m max 10 m 5...
Страница 266: ...ALHENA C 266 cod 3540000251 Rev 00 03 2024 EN Example of installation type C 11 3 fig 41 min 0 6 m max 10 m 5...
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