5 | Servicing the system
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B1510622_en | Operating instructions Firewood boiler S4 Turbo
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Carefully remove the Lambda probe (1), adapter (2) and plastic bushing (3)
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Pay attention to the cables of the Lambda probe!
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Carefully remove impurities from the measuring ports with a fine brush and ash
vacuum
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Hold the Lambda probe with the tip downwards so that deposits can fall out of the
measuring ports
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Check the adapter (2) and plastic bushing (3) for dirt and cracks, replace if necessary
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IMPORTANT: The seal surface of the plastic bushing must lie flat after assembly
CAUTION:
▪ Do not clean the Lambda probe with compressed air
▪ Do not use chemical cleaning agents (brake cleaner, etc.)
▪ Handle the Lambda probe carefully, i.e. no “tapping” or cleaning with a wire brush
