CONDENSATION BOILER
AQUAKOND AKY
38
code HC0048.01GB ed.B-1406
AKY
8.
LOCK ANALYSYS - FAULT REPORTING
CPU-SMART board manages two types of locks:
- Precautionary: customer is warned that maintenance is required
- Operational: boiler is stopped for safety reasons.
Some of the locks require manual reset, others are automatically resolved when their cause is removed.
The following list shows all locks, their possible cause and remedy.
LOCK
DESCRIPTION
REASON
UNLOCK
Locks caused by flame / ACF device
F10
Start-up failure after 4 attempts.
•
Phase and neutral wires were exchanged.
•
Ground wire not connected
•
Phase-phase connection without neutral
•
Faulty or wrongly positioned start-up electrode
•
Faulty or wrongly positioned detection electrode
•
Detection electrode not properly fixed or discharged
to ground
•
Low CO2 value
Manual reset
F11
Ill-timed flame
F12
Start-up failure. Not shown.
Count in history indicates if the boiler
has problems in start-up phase.
F13
ACF device fails to accept CPU-SMART
board reset
TER device completed 5 reset attempts in 15 minutes. Wait 15 minutes or
reset the appliance.
F14
Communication failure for more than
60 seconds between ACF and CPU.
Damaged TER device or CPU-SMART board
Autoreset
F15
CPU-SMART board issued a start-up
signal to TER device but after 300
seconds the flame is not lit yet.
Faulty ACF device
Manual reset
F16
Generic lock
Faulty ACF device
Manual reset
F17
Internal problem with ACF device that
fails to accept CPU-SMART board reset. Faulty ACF device
Manual reset of de-
vice
Temperature locks (safety locks)
F20
STB safety thermostat triggers
•
Excessive water temperature because of insuf-
ficient circulation
•
Faulty or not connected safety thermostat
•
Faulty temperature sensor (NTC1) on water
delivery
Manual reset
F21
ID1 input contact is open because:
•
Heat exchanger thermal cut out
has triggered - TERM
•
ISPESL safety air pressure switch
has triggered - IP - (AKY070 only).
•
Water temperature in heat exchanger has ex-
ceeded safety limit of thermal cut-out. Uninstall
heat exchanger and inspect it to check that no
damages occurred. If it damaged, replace it.
•
Pressure in water circuit increased and IP MAXI-
ISPESL pressure switch has triggered, locking the
boiler. Check that all valves on the circuit are open.
•
Pressure in water circuit has fallen and IP MINI
ISPESL pressure switch has triggered, locking the
boiler; check that there are no water leaks on the
circuit and reset minimum pressure.
•
The expansion tank ran out of pressure, is too
small or it’s broken.
- Manual reset of
CPU-SMART
- If a pressure switch
is installed, it must
be manually reset,
as well.
Lock of burner fan
F30
Fan speed too low during start-up - VAG
Faulty burner fan.
- Faulty or not connected fan cables
Manual reset
F31
Fan speed too high during stand-by
- VAG
F32
Fan speed during operation exceeds
min and max parameters - VAG
Manual reset, au-
toreset after 5 min-
utes
Summary of Contents for AQUAKOND AKY
Page 2: ...CONDENSATION BOILER AQUAKOND AKY 2 code HC0048 01GB ed B 1406 AKY ...
Page 4: ...CONDENSATION BOILER AQUAKOND AKY 4 code HC0048 01GB ed B 1406 AKY 3 7 Approval Certificate ...
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Page 44: ...CONDENSATION BOILER AQUAKOND AKY 44 code HC0048 01GB ed B 1406 AKY ...
