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Building Technologies Division Basic Documentation LME39… CC1P7106en
9 Operation, indication, diagnostics 08.12.2017
Error code table
Red blink code of
signal lamp (LED)
Alarm at
terminal
10
Possible cause
2 blinks ON No establishment of flame at the end of safety time
- Faulty or soiled fuel valves
- Faulty or soiled flame detector
- Poor adjustment of burner, no fuel
- Faulty ignition equipment
3 x blinks ON Air pressure switch faulty
- Loss of air pressure signal after specified time
- Air pressure switch welded in no-load position
- Failure during valve proving (only in connection with LDU11...)
4 blinks ON Extraneous light on burner startup
5 blinks ON Air pressure switch time supervision
- Air pressure switch welded in working position
6 blinks ON Free
7 blinks ON Too many losses of flame during operation (limitation of repetitions)
- Faulty or soiled fuel valves
- Faulty or soiled flame detector
- Poor adjustment of burner
8 x blinks ON Free
9 blinks ON Free
10 blinks OFF Wiring error
Internal error
Output contacts
Other fault
Manual lockout
14 blinks ON CPI contact not closed
Table 7: Error code table
During the time the cause of fault is diagnosed, the control outputs are dead.
- Burner remains shut down
- External fault indication remains deactivated
- Fault status signal (alarm) at terminal 10, according to the error code table
The diagnostics of the cause of fault is quit and the burner switched on again by resetting
the burner control. Press the lockout reset button for about 1 second (<3 seconds).
Note!
When using coiled igniters, flame detection may be improved by increasing
parameter 228 (tfz). To prevent an extended safety time (TSA, parameter 227) in that
case, the postignition time (t3n, parameter 257) must be reduced to the same extent.
Warning!
If the set safety time (TSA) is too long, the safety functions will become
ineffective. Compliance with the relevant standards must be ensured!
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