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5 Instructions for Maintenance
5.2.5 Faults During Ignition
Faults occurring during ignition may have several causes.
1 In case of additionally monitoring of pilot flame and main flame, the pilot flame may not
sufficiently be detected.
• Check the pilot flame for stable operation
2 Interference
Refer to chapter 5.2.4 Fault on Flame Detection
3 Defect in the device.
5.2.6 Faults During Operation
Faults occurring during operation may have 3 causes.
1 The main flame may not sufficiently be detected.
– Check the main flame for stable operation - provide for visibility throughout the oper-
ating range
2 Interference
3 Defect in the device.