Appendix
40
Installation and maintenance instructions ecoTEC exclusive 0020189875_01
Code
Parameter
Possible causes
F.03
Interruption: Cylinder sensor
Only in conjunction with F.91
NTC defective, NTC cable defective, defective plug connection on NTC,
defective plug connection on the
actoSTOR
electronics
F.10
Short circuit: Flow sensor
NTC defective, short circuit in cable harness, cable/housing
F.11
Short circuit: Return sensor
NTC defective, short circuit in cable harness, cable/housing
F.12
Short circuit: DHW outlet sensor
Only in conjunction with F.91
NTC defective, short circuit in cable harness, cable/housing
F.13
Short circuit: Cylinder sensor
Combination product: Warm start sensor/cylinder sensor short circuit
Combination product with actoSTOR: Short circuit cylinder sensor (NTC)
only in combination with F.91
NTC defective, short circuit in cable harness, cable/housing
F.20
Safety switch-off: Temperature limiter
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
Safety switch-off: Low water pressure
No or insufficient water in the product, water pressure sensor defective,
cable to pump or water pressure sensor loose/not connected/defective
F.23
Safety switch-off: Temp.spread too large
Pump blocked, insufficient pump output, air in product, flow and return
NTC connected the wrong way round
F.24
Safety switch-off: Temp. incr. too fast
Pump blocked, insufficient pump output, air in product, system pressure
too low, non-return valve blocked/incorrectly installed
F.25
Safety switch-off: Flue temp. too high
Break in plug connection for optional flue gas safety cut-out (SCO),
break in cable harness
F.26
Fault: Fuel valve not working
Gas valve assembly stepper motor not connected, multiple plug on the
PCB not plugged in correctly, interruption in cable harness, gas valve
assembly stepper motor defective, electronics defective
F.27
Safety switch-off: Flame simulation
Moisture on the electronics, electronics (flame monitor) defective, gas
solenoid valve leaking
F.28
Start-up failure: Ignit. unsuccessful
Gas meter defective or gas flow monitor has triggered, air in gas, gas
flow pressure too low, thermal isolator device (TAE) has triggered, con-
densate route blocked, incorrect gas injector, incorrect spare part gas
valve assembly, value in
D.052
does not correspond to the printed value
on the current gas valve assembly, fault on the gas valve assembly, mul-
tiple plug on PCB incorrectly plugged in, break in cable harness, ignition
system (ignition transformer, ignition cable, ignition plug, ignition elec-
trode) defective, ionisation flow interrupted (cable, electrode), incorrect
earthing of product, electronics defective
F.29
Start-up failure: Ignit. unsuccessful
Gas supply temporarily stopped, flue gas recirculation, condensate route
blocked, defective earthing of product, ignition transformer has spark
failure
F.32
Fault: Fan
Plug on fan not correctly plugged in, multiple plug on PCB not correctly
plugged in, break in cable harness, fan blocked, Hall sensor defective,
electronics defective
F.33
Pressure switch
Check: Cable harness, vacuum hose (blockage), supply air/flue gas
route (blockage), panel (correct type), flue pipe (length), air pressure
sensor, settings (if necessary, switch
D.132
to multiple-flue configura-
tion), pressure switch, fan.
Содержание ecoTEC exclusive
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