Troubleshooting; Identifying Operating Modes And Resetting Faults - Buderus LOGANO PLUS GB312 Installation Instructions Manual

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Troubleshooting

10 Troubleshooting

10.1 Identifying operating modes and resetting faults

In the event of a fault, the fault code will flash on the control unit display.
The programming unit shows faults as messages in plain language.
A fault is present if the display flashes and indicates something other
than the current boiler water temperature or a message related to
normal operation.
Example: "6A" = Burner has failed to ignite
A overview of the operating, fault and service codes together with details
of possible causes and remedies can be found in the  programmer
documentation and Section 10.2, page 53 below.
▶ Press and hold down the "Reset" button for about 5 seconds to clear
the fault.
The display shows "rE" while the reset is being carried out. A reset is only
possible if a flashing fault indication is shown.
If the display then reverts to a normal operation message, the fault has
been eliminated. Should the fault recur, repeat the reset two or three
times.
Fig. 73 Clearing a fault with the Reset button
CAUTION: Risk of system damage due to freezing.
The heating system can freeze up in cold weather if
it has been switched off by a fault shutdown.
▶ Rectify the fault immediately and restart the
heating system.
▶ If that is not possible, protect the heating system
against freezing by draining the heating system
and hot water pipes from the lowest point.
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7 747 010 720 76 1RS
Logano plus GB312 – 6 720 647 367 (2012/11)