A full indicator with no operation can come from a bin/filter interlock, blocked brush, battery contact problem or battery/control fault. Remove and reseat the bin, filter and head until each clicks fully home, then try again. Take the powered head off, turn the brush roll by hand and clear any wrapped hair.
What this covers
- Vacuums · battery
What it does not cover
Differential
Likely causes of “Vacuum battery shows full but the machine will not run”, and how to tell them apart
- 1
A bin, filter or brush cover is not latched
What separates it The machine has a full charge indicator but does nothing or stutters, and no fault light points at the pack.
How to confirm Remove and reseat the bin, filter and head until each clicks fully home, then try again.
- 2
A blocked or stalled brush is tripping protection
What separates it The head does not spin, the machine may stop after a second, and there is hair around the roll.
How to confirm Take the powered head off, turn the brush roll by hand and clear any wrapped hair.
- 3
Dirty or damaged battery contacts
What separates it The indicator lights briefly but the machine cuts out, and the contacts look dull or have residue.
How to confirm With the pack off, look at the contacts on the pack and the body for dirt or corrosion and wipe with a dry cloth only.
- 4
A battery or control fault that reports a healthy charge
What separates it Nothing works in any combination of tools and the machine shows a fault light pattern.
How to confirm Check the maker's light-code guide for the exact pattern; a fault pattern with a full pack points at service, not at charging.
Before you touch a setting
Record this first — changing settings destroys the evidence
- The exact light color and blink pattern, since the maker's guide keys the meaning to the pattern.
- Whether the fault follows the powered head, the wand or the battery; try each part with the others removed.
- Whether the machine has been dropped, wet or left in a hot car recently.
Try in this order
0 of 4 completedObserve before changing anything
ReversibleCheck all bin, filter and brush covers are fully latched and note any light pattern.
Isolate the failing boundary
ReversibleRemove the powered head and test the motor unit after inspecting dry contacts and accessible blockages.
Apply the narrow correction
ReversibleUse the manufacturer’s light-code guide and one documented reset.
Verify the result and stop at the boundary
ReversibleStop for damaged contacts, moisture, swelling or heat and arrange service.
Stop boundary
When this stops being a self-service repair
- !Stop for damaged contacts, moisture on the pack, swelling or heat, and do not charge or open it.
- !One documented reset is reasonable; repeated resets on a machine with a fault pattern do not fix a battery fault.
Evidence ledger
Sources behind this answer
Exact questions
Common questions
Why would a fully charged battery not run the vacuum?+
The indicator only shows stored charge. Interlocks for the bin, filter and brush, and thermal or brush protection, can each keep the motor from starting even when the pack is full.
Why will it not run when full?+
A bin or filter interlock may be open.
Could the trigger fail?+
Yes.