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High Pitched Noise Troubleshooting Guides
Published FixGraph guidance for diagnosing and responding to high pitched noise.
Matching published guides
Choose a guide that matches the service, equipment, and conditions you are seeing.
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New Beko BDFN26640WC Dishwasher Makes a High-Pitched Noise at Night: Is 7 kHz a Fault?
A 7 kHz reading by itself does not establish that a Beko BDFN26640WC is defective. Beko publishes 44 dBA airborne noise for this exact model, but that is an overall noise specification, not a 7 kHz pass/fail limit.
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Beko BM6046 high-pitched noise during the wash sequence
For the Beko BM6046, a constant high-pitched whine during washing should not be declared normal from the sound alone. Beko's official BM 6046 product page identifies the model and lists a 46 dBA noise rating, while Beko's dishwasher guidance treats ordinary clicks, clunks, and hums as possible cycle sounds and sends persistent abnormal operation to service.