ApenGroup AQUAKOND AKY, Installation And Maintenance Manual

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CONDENSATION BOILER
AQUAKOND AKY
39
code HC0048.01GB ed.B-1406
AKY
LOCK DESCRIPTION REASON UNLOCK
Faulty or missing NTC sensors
F41
Error in NTC1 sensor, water temperature
on delivery
No signal from sensor or faulty sensor Autoreset
F43 Error in NTC3 sensor, flue temperature
Overtemperatures
F51
Water temperature detected by NTC1
sensor >TH1
• Excessive minimum heat output of the boiler com-
pared to heat request from the room.
• Check TH1 parameter - Set point of water delivery.
Autoreset
If NTC1< TH1-15
F53
Temperature detected by flue sensor
NTC3>TH3
if H46=0
• - Flue exhaust pipe could be clogged
• - Gas flow rate could exceed boiler setting pa -
rameter range
• - Check exchanger is clean
Autoreset
If NTC3 < TH3
Check on Modbus communication
F60
Communication failure between CPU-
SMART and Modbus network, Smart-
Control or SMART.NET.
• Modbus network is down
• Board address is wrong and/or not configured in
Modbus network.
Autoreset
No power
F75
No power during operation cycle (stand-
by excluded)
Error not reported on remote control: it
is included in count.
Lack of power during operation Autoreset
Control of pressure and water circulation in circuit
F80
Insufficient water pressure: PRH <
ST5 - P5
If this problem occurs frequently, then check
Check leaks in water circuit.
Autoreset
F81 Alert: water pressure: PRH < ST5 Restore water pressure of hydraulic circuit
Errors are shown on
LCD panel without
stopping the unit
F82 Alert: water pressure: PRH < TH5
Excessive pressure in water circuit: check hydraulic
circuit load o expansion vessel
F85
Lack of water circulation: FLH value
is zero
Water circuit is clogged, valves are closed or the cir-
culator is not working
Disconnected or faulty flow meter
Autoreset
F86
Water flow rate lower than minimum set
point FLH < ST6 - P6
Check length and pipe diameters of water circuit
Check of flue temperature (d5=1)
F90
Temperature detected by flue sensor
NTC3 > TH3
if H46=1
• - Flue exhaust pipe could be clogged
• - Gas flow rate could exceed boiler setting pa -
rameter range
• Check exchanger is clean.
Manual reset
F91
Error due to 30% decrease of maximum
power output to avoid exceeding flue
temperature value set on CPU-SMART
board.
Boiler is reducing output because of flue curve has
been exceeded. See H43, H44, and H45
Autoreset when flue
temperature de-
creases below flue
curve
F95
Wrong setup of
flue temperature
Check H43, H44, and H45 parameters
Autoreset when H43,
H44, and H45 pa-
rameters are correct
Parameter wrongly setup
F99
Wrong setting of CPU-SMART param-
eters
Verify:
D5 (NTC3 flue sensor enabling) = 1
S1 (NTC1 sensor enabling) =1
S5 (B2 water pressure switch enabling - PREX) = 3
S6 (B3 flow meter enabling - FLUX) = 4
Autoreset when D5,
S1, S5, and S6 pa-
rameters ≠ 0
CPU-SMART board not working
F00 CPU-SMART board not working Manually reset board and replace it if error persists. Manual reset