Viessmann B23, Инструкция по установке и обслуживанию

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83
Displayed fault
code System characteristics Cause Measures
d8 Control mode Input DE3 at
EA1 extension reports a
fault. Remedy fault at affected appliance.
dA Control mode without room
influence Short circuit, room tem-
perature sensor, heating
circuit 1 (without mixer) Check room temperature sensor,
heating circuit 1.
db Control mode without room
influence Short circuit, room tem-
perature sensor for heat-
ing circuit 2 (with mixer) Check room temperature sensor,
heating circuit 2.
dC Control mode without room
influence Short circuit, room tem-
perature sensor for heat-
ing circuit 3 (with mixer) Check room temperature sensor,
heating circuit 3.
dd Control mode without room
influence Lead break, room temper-
ature sensor, heating cir-
cuit 1 (without mixer) Check room temperature sensor,
heating circuit 1 and remote control
settings (see page 97)
dE Control mode without room
influence Lead break, room temper-
ature sensor for heating
circuit 2 (with mixer) Check room temperature sensor,
heating circuit 2 and remote control
settings (see page 97)
dF Control mode without room
influence Lead break, room temper-
ature sensor for heating
circuit 3 (with mixer) Check room temperature sensor,
heating circuit 3 and remote control
settings (see page 97)
E0 Control mode External LON subscriber
error Check connections and LON sub-
scribers.
E4 Burner locked out 24 V power supply fault Replace control unit.
E5 Burner in a fault state Flame amplifier fault Press reset button R .
Replace the control unit if the burn-
er will not restart.
E6 Burner in a fault state Oil preheater does not re-
spond within tolerated
time. Check oil preheater and supply line
and replace if necessary.
Press reset button
R .
F0 Burner locked out Communication error,
burner control unit Replace control unit.
F1 Burner in a fault state Flue gas temperature lim-
iter has responded. Check heating system fill level.
Vent the system.
Press reset button
R after flue sys-
tem has cooled down.
F2 Burner in a fault state Temperature limiter has
responded. Check heating system fill level.
Check circulation pump. Vent the
system. Check temperature limiter
and connecting cables.
Press reset button
R .
F3 Burner in a fault state Flame signal is already
present at burner start. Check ignition electrodes, elec-
trode gaps and connecting cables.
Press reset button
R .
F4 Burner in a fault state Flame not established at
end of safety time Check oil supply, ignition electro-
des, electrode gaps and connect-
ing cables.
Check nozzle and solenoid valve
coil.
Correct the settings if necessary.
Clean dirty parts, replace faulty
parts.
Press reset button
R .
Troubleshooting
Fault codes
(cont.)
6136330
Service