Troubleshooting; Identifying Operating Modes And Resetting Faults - Buderus Logano plus GB312 Installation Manual

10

Troubleshooting

10 Troubleshooting
10.1 Identifying operating modes and
resetting faults
In the event of a fault, the fault code will flash on the con-
trol 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 73 below.
V 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.
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.
V Rectify the fault immediately and re-
start the heating system.
V If that is not possible, protect the heat-
ing system against freezing by draining
the heating system and hot water
pipes from the lowest point.
72
Fig. 68 Clearing a fault with the Reset button
Logano plus GB312 - Technical specifications are subject to change without prior notice
7 747 010 720 76 1RS