Direct answer
For the iRobot Roomba 600 Series, blockage protection, dirty filters, battery temperature and motor overheating are common boundaries. First, cool the unit and test briefly without wand/head.
What this covers
- iRobot Roomba 600 Series (614, 675, 692, 694)
- iRobot Roomba; mapping, obstacle avoidance, self-emptying and mop functions vary.
- The specific fault this record addresses: keeps stopping, pulsing or shutting off
What it does not cover
- ×The same symptom on a different iRobot product line, which has its own record and its own cited source
- ×An on-screen error code whose meaning has not been checked against this exact model's manual
- ×Live electrical, gas, sealed-system, internal battery-cell or structural repair — a technician boundary, not a self-service step
Differential
What actually causes this, and how to tell them apart
These are ordered by how often each one is the answer, not by how easy it is to try. The point of the middle column is that two causes producing the same headline symptom rarely produce the same detail — that detail is what tells you which one you have before you change anything.
- 1
A blockage is triggering the vacuum's own protection circuit
What separates it Stopping is tied to suction feeling weaker just before it happens, or a specific attachment/setting being in use.
How to confirm Clear the full airway as described under no-suction — many models pulse or shut off specifically when internal pressure sensors detect a blockage, as a protective measure rather than a fault.
- 2
A dirty or wet filter is restricting airflow enough to trigger thermal protection
What separates it Stopping happens more on higher power settings, and suction feels generally weak beforehand.
How to confirm Clean and fully dry all filters before further testing.
Before you touch a setting
Record this first — changing settings destroys the evidence
Every item below stops existing the moment a reset, re-pair or settings change is made. Written down first, they are what separates the causes above; recovered afterwards, they are guesswork.
- Whether stopping correlates with a specific power setting, attachment, or feeling of reduced suction right before it happens.
- For cordless models: recent storage or use temperature, and whether the battery is original or has been showing declining runtime.
- Whether it stops abruptly (a full shutoff) or pulses/cycles repeatedly.
Cool the unit and test briefly without the wand or head attached
ReversibleIsolates whether the base unit alone reproduces the stop.
Add components back one at a time while inspecting filter condition
ReversibleIdentifies whether a specific attachment or a dirty filter triggers the stop.
Clear any blockage found and ensure filters are fully dry
ReversibleAddresses the most common protective-shutdown cause.
For cordless models, let the unit reach room temperature before retesting
ReversibleRules out thermal protection tied to storage or ambient conditions.
Run beyond the previous stop time to confirm the fix
ReversibleA one-time success isn't sufficient confirmation for an intermittent symptom.
Model-specific
What is true of this model and not of its siblings
Generic advice for the product line fails here. Each item below is a property of this specific model family that changes which of the steps above apply to you.
- Model scope
- 614, 675, 692, 694. iRobot Roomba; mapping, obstacle avoidance, self-emptying and mop functions vary.
- Type — entry ROBOT vacuum (no mapping, no self-empty)
- An entry ROBOT vacuum that navigates by bump-and-go rather than mapping, and empties its own onboard bin (NO Clean Base self-empty on the 600 series). So it cleans in a semi-random pattern by design, and there is no map or self-empty base to troubleshoot — those symptoms do not apply.
- Docking & charging
- It finds its Home Base to charge; 'won't dock/charge' is usually dirty charging contacts, a moved/unplugged dock, or blocked clearance. Empty the onboard bin regularly since there is no self-empty base.
- Brushes, wheels & sensors
- A bristle brushroll plus a beater brush (older design that needs hair cleared more often), a side brush, wheels and cliff sensors — clear hair and wipe sensors if it gets stuck or picks up poorly.
- Symptom boundary
- This record covers iRobot Roomba 600 Series when it keeps stopping, pulsing or shutting off. A different symptom on the same hardware, or this symptom on a different iRobot product line, has its own record with its own causes and its own cited source.
Stop boundary
When this stops being a self-service repair
Continuing past any one of these costs more than the repair saves — in safety, in warranty, or in evidence a technician needs.
- !Stop for heat, swelling, an unusual odor, liquid contact or any smoke — these are safety conditions, not settings to work around.
Evidence ledger
Sources behind this answer
Visible sources support the visible claims. Home Product Support records the publisher, the fact used and the review date; community reports can suggest an issue but do not become a published fact on their own.
Where the manufacturer's article stops. iRobot Support publishes this as "Roomba support". Official Roomba setup, error, mapping, cleaning and repair support. What that article does not carry is the model boundary — it is written for a product line, and 614, 675, 692, 694 is the scope applied here. Where a control label, terminal, indicator pattern or reset sequence differs on your unit, the manual for that exact model is the authority, not this page and not the article.
Exact questions
Common follow-ups
Why does my Roomba 600 clean so randomly and miss spots?+
The 600 series navigates by bumping into things and turning (bump-and-go), not by mapping the room, so it deliberately cleans in a semi-random pattern and relies on time and coverage rather than a planned route — it is not lost or faulty. Give it enough time per room, clean its dual brushes and side brush of hair (the 600's brush design tangles more than newer models), empty the bin often (no self-empty base), and it will cover the floor. For mapped, room-by-room cleaning you would need an i-series or newer.
My cordless vacuum keeps cutting out on high power but works fine on low.+
That pattern points to either thermal protection (check recent storage temperature) or a battery that's starting to fail under heavy load. If runtime has also been declining, the battery is the more likely of the two.
Does this answer apply to every iRobot model?+
No. It is scoped to 614, 675, 692, 694. iRobot Roomba; mapping, obstacle avoidance, self-emptying and mop functions vary.
What should I record before troubleshooting keeps stopping or pulsing?+
Record the complete model identifier, exact message or indicator, software/firmware where visible, the operating stage and what still works.
Why is a factory reset not the first step?+
A reset can erase accounts, networks, maps, schedules or preferences without distinguishing keeps stopping, pulsing. The ordered checks preserve that evidence.
When should I stop and use qualified service?+
Stop for heat, swelling, odor, liquid or smoke.
Answer for the exact device and software version shown above.