Vaillant ecoTEC sustain 24, Инструкция по установке и обслуживанию

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Installation and maintenance instructions ecoTEC sustain 0020253094_05
E Overview of fault codes
Note
Since the code table is used for various products, some codes may not be visible for the product in question.
If faults occur, some of them can be reset. To do so, press and hold the button for three seconds.
Fault code Meaning Possible cause
F.00 Fault: Flow temperature sensor NTC plug not plugged in or has come loose, multiple plug on the PCB not
plugged in correctly, interruption in cable harness, NTC sensor defective
F.01 Fault: Return temperature sensor NTC plug not plugged in or has come loose, multiple plug on the PCB not
plugged in correctly, interruption in cable harness, NTC sensor defective
F.10 Short circuit: Flow temperature sensor NTC sensor defective, short circuit in the cable harness, cable/housing
F.11 Short circuit: Return temperature sensor NTC sensor defective, short circuit in the cable harness, cable/housing
F.13 Short circuit: Temperature sensor for the
domestic hot water cylinder Applies to: Product with heating mode only
NTC sensor defective, short circuit in the cable harness, cable/housing
F.20 Safety shutdown: Overheating temperat-
ure reached Overheating temperature reached; check whether water is available and
whether the flow rate is sufficient.
Incorrect earth connection between cable harness and product, flow or return
NTC defective (loose connection), stray spark via ignition cable, ignition plug
or ignition electrode
F.22 / 0,0
bar Safety shutdown: Water deficiency in the
boiler No water or insufficient water in the product, water pressure sensor defect-
ive, cable to water pressure sensor loose/not connected/defective
F.23 Safety shutdown: Temperature spread
too great (NTC1/NTC2) Pump blocked, insufficient pump output, air in product, flow and return NTC
sensors connected the wrong way round
F.24 Safety shutdown: Temperature rise too
fast Pump blocked, insufficient pump output, air in product, system pressure too
low, non-return valve blocked/incorrectly installed
F.27 Safety shutdown: Fault in flame detec-
tion Moisture on the electronics, electronics (flame monitor) defective, gas solen-
oid valve leaking
F.28 Fault: Ignition unsuccessful when starting
up Gas meter defective or gas pressure switch has triggered, air in gas, gas
flow pressure too low, thermal cut-out has triggered, incorrect gas injector,
incorrect spare gas valve assembly, fault on the gas valve assembly, mul-
tiple plug on PCB incorrectly plugged in, break in cable harness, ignition sys-
tem (ignition transformer, ignition cable, ignition plug, ignition electrode) de-
fective, ionisation flow interrupted (cable, electrode), incorrect earthing of
product, electronics defective
F.29 Fault: Flame loss Gas supply temporarily stopped, flue gas recirculation, incorrect earthing of
product, ignition transformer has spark failure
F.32 Fan test function active: Fan speed
outside the tolerance values Plug on fan not correctly plugged in, multiple plug on PCB not correctly
plugged in, break in cable harness, fan blocked, Hall sensor defective, elec-
tronics defective
F.46 Short circuit: Temperature sensor at the
solar circuit water inlet Applies to: Installed solar set (optional)
Sensor defective, short circuit in the cable harness, cable/housing
F.49 eBUS fault: Voltage too low Short circuit on the eBUS, eBUS overload or two power supplies with differ-
ent polarities on the eBUS (can only be found in the fault report)
F.61 Fault: Gas valve assembly control Short circuit/short-to-ground in cable harness to gas valve assembly, gas
valve assembly defective (coils shorted to earth), electronics defective
F.62 Fault: Gas valve switch-off control Delayed switch-off of gas valve assembly, delayed extinguishing of flame
signal, gas valve assembly leaking, electronics defective
F.63 Fault: EEPROM Electronics defective
F.64 Fault: Electronics / sensor / analogue-to-
digital converter Flow or return NTC short circuited, electronics defective
F.65 Fault: Electronics temperature too high Electronics overheating due to external influences, electronics defective
F.67 Value sent back by ASIC is incorrect
(flame signal) Implausible flame signal, electronics defective
F.68 Fault: Unstable flame (analogue input) Air in gas, gas flow pressure too low, incorrect air ratio, incorrect gas in-
jector, ionisation flow interruption (cable, electrode)
Electronics defective
F.70 Invalid product code (DSN) Replace the screen and PCB at the same time without reconfiguring the
product's Device Specific Number
F.71 Fault: Flow/return temperature sensor Flow temperature sensor specifies the constant value: Flow temperature
sensor incorrectly attached to the flow pipe, flow temperature sensor defect-
ive