Error Code List - Siemens LME39 Series Basic Documentation

Error code Clear-text
Loc: 2 No flame at the end of safety time
Loc: 3 Air pressure failure (air pressure switch has
welded in the no-load position, drop-out after
specified time) (air pressure switch flame-on
response time)
Loc: 4 Extraneous light
Loc: 5 Air pressure failure, air pressure switch has
welded in the operating position
Loc: 7 Loss of flame
Loc: 10 Errors that cannot be assigned (application)
Internal error
Loc: 14 CPI error
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Building Technologies Division

21 Error code list

Table 11: Error code list
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!
Basic Documentation LME39...
21 Error code list
Potential cause
No establishment of flame at the end of safety
time
- Defective or soiled fuel valves
- Defective or soiled flame detector
- Poor adjustment of burner, no fuel
- Defective ignition equipment
Error air pressure switch
- Air pressure failure on completion of specified
time
- Air pressure switch has welded in the no-load
position
Extraneous light on burner startup
Air pressure switch time supervision
- Air pressure switch has welded in the operating
position
Loss of flame during operation too frequent
(limitation of repetitions)
- Defective or soiled fuel valves
- Defective or soiled flame detector
- Poor adjustment of burner
Wiring error or internal error, output contacts,
other errors, manual locking
CPI contact not closed
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CC1P7106en
08.12.2017