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The alarm keeps going off on my M class 1230 extractor
The hose diameter dial on the 1230M may be set incorrectly.
If using the Mirka handblock hose, this should be set to 20mm. If you using the hose for the Mirka DEROS/DEOS/CEROS/LEROS, this should be set to 27mm.
If the problem persists, please contact the Mirka Service Centre.
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