Discover why your vacuum is triggering a safety shutdown and how to fix it.
The pulsing is a smart safety protocol preventing the high-speed motor from overheating or burnout.
When air is restricted, the motor load spikes, forcing the digital board to modulate current.
Clear persistent errors by holding the trigger and mode button for 10 seconds to recalibrate.
Even 20% dust saturation or slight dampness in your filter will trigger an immediate pulse.
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