Fronius MTG 250d Instructions De Service page 63

Too little suction
Cause: Hole(s) in the extraction hose
Remedy: Replace extraction hose
Cause: Extraction unit filter blocked
Remedy: Replace extraction unit filter
Cause: Air passages blocked
Remedy: Remove blockages
Cause: Extraction capacity of the extraction unit too low;
OPT/i FumeEx configured incorrectly
Remedy: Use an extraction unit with a higher extraction capacity;
increase the extraction capacity
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