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If the burner is locked out, there will be a steady red light on the lock out pushbutton.
By pressing the transparent pushbutton, the control and checking device will be released.
By pressing it for more than 3 seconds, the diagnosis stage will be activated (red light flashes rapidly).
The table below describes the causes of the lock out or fault in relation to the number of flashes (always red).
The diagnosis function is interrupted by pressing the release button for at least 3 seconds.
DIAGNOSIS OF LME EQUIPMENT FAULTS AND LOCK OUT
Description of operating anomalies
Visual indication
Possible causes
2 flashes
No flame signal
Y Y
Faulty fuel valves
-
Faulty flame detector
-
Incorrect burner setting, no fuel
-
No ignition
-
3 flashes
Air pressure switch failure
-
Y Y Y
Air pressure switch loss of signal after T10
-
Air pressure switch contact open
-
4 flashes
Stray light on ignition
Y Y Y Y
5 flashes
Not used
Y Y Y Y Y
6 flashes
Not used
Y Y Y Y Y Y
7 flashes
No flame signal during operation
Y Y Y Y Y Y Y
Faulty fuel valves
-
Faulty flame detector
-
Incorrect burner setting, no fuel
-
8 flashes
Not used
Y Y Y Y Y Y Y Y
9 flashes
Not used
Y Y Y Y Y Y Y Y Y
10 flashes
Incorrect electrical connection or damage to equipment
Y Y Y Y Y Y Y Y Y Y
14 flashes
Open thermostats switch line
Y Y Y Y
Y Y Y Y Y Y
Y Y Y Y
GAS CONNECTION
The system must be equipped with all the accessories required by current regulations. We recommend the following:
always include a filter, do not apply mechanical strain to the components and, therefore install a flexible joint as well as a
pressure stabilizer and an interception cock at the heating system inlet.
The pipes must be laid using rigid pipes. Any flexible pipes must be type approved.
Also bear in mind the necessary space required for carrying out maintenance operations on the burner and the boiler.
After fitting the valve unit on the burner, check that there are no gas leaks during the first ignition stage.
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