Trigger is pulled but vacuum does not start; no error code shown, or intermittent operation when trigger is wiggled.

Safety: Remove the battery before inspecting the trigger area.

• Inspect trigger movement: Check that the trigger moves freely and returns when released. Look for cracks or broken plastic.
• Clean around trigger: Use a dry brush or compressed air to remove dust and debris from the trigger gap.
• Test with different modes: On models with a power button plus trigger, ensure the main power is on.
• Check battery and charger first: Confirm the battery is charged and functional by testing on another Dyson (if available).
• Repair/replace trigger assembly: If the trigger feels loose or does not click, the internal switch or linkage is likely faulty. This typically requires disassembling the main body and replacing the trigger switch assembly, a task best done by an experienced technician.