Buderus GB402-320-5, Инструкции по установке и обслуживанию для подрядчиков

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11 Troubleshooting
Logano plus GB402 – 6 720 820 700 (2018/01) 51
B 6A 577 No flame within
the safety time. Ionisation current
within the safety time is
< 1.1 μA. Gas supply pressure too low. Notify the gas supplier if the
pressure is too low.
The gas governor is not adjusted
to the required gas volume. Install gas governor that is
adjusted to the required gas
volume or, if necessary, notify
gas supplier.
Inadequately sized gas line
cross-sections (min.
cross-section of the gas supply
pipe). Install adequately sized gas
lines.
Air in the gas line. Vent the gas line.
Back-pressure of the flue system
is too high due to an unfavourable
layout (too many deflections;
cross-sections too small or too
long; horizontal sections too
long). Size and route the flue system
correctly.
Ignition/ionisation electrode
dirty. Clean or replace ignition/
ionisation electrode.
Check cabling between the SAFe
and the ionisation electrode for
contact separation, breaks and
damage. Establish the contacts
correctly. Replace cable if
required.
Check the electrode clearances
and ignition/ionisation electrode
for damage. Align burner rod or electrode.
Replace faulty electrode.
Check cabling between the
ignition transformer and ignition
electrode for contact separation
(on electrode and transformer),
breaks and damage. Establish the contacts
correctly. Replace cable if
required.
SAFe burner control unit faulty. Replace the SAFe.
Ignition transformer faulty (no
ignition spark or delayed ignition
spark, "hard start"). Replace the ignition
transformer.
V 6L 561 "Power up" 5
times (power
interruption
during burner
start). The burner control unit
was switched off 5
times during the burner
start. Check the 230 V power supply to
the control unit. Reset burner control unit.
Remedy the problem in the
power supply.
B 7A 550 Undervoltage. The mains voltage is
too low. The mains voltage must not fall
below 195 V. Ensure the correct power
supply.
B 7A 551 Voltage
interruption. There has been a brief
interruption in the
mains voltage. Check the mains cable for
possible loose contacts.
Check the wiring and correct
contacts of the mains plug at the
MC10 or SAFe.
Remedy any contact problems.
B 7P 549 The safety chain
has opened. The continuity of the
external components,
which are integrated in
the MC10 safety chain
has been interrupted. Check the continuity of the
components. If required, replace faulty
components.
Type
1)
Display code Fault Code Reason Description: Test procedure/cause Corrective measure
Table 23 Fault displays
1) V = locking; B = blocking