Rake is stuck or does not return
Stop and check The rake stops partway across the tray or fails to return to its parked position.
Likely causes
- A large clump or a foreign object is blocking the rake path.
- Crystals have been pushed into a ridge the rake cannot climb.
- The tray is not seated square in the bay.
Fix it, in this order
- Unplug and clear the path. Remove the obstruction by hand. Never force the rake while the unit is powered.
- Level the crystals. Rake the crystal bed flat by hand every week or two. This prevents most jams before they happen.
- Reseat the tray. The tray must sit flat and square with no lip catching the rake.
When to stop and get help: A rake that stalls on a clean, level, correctly seated tray has a drive fault. PetSafe offer US-based support — use it.
The health counter looks wrong
Common The usage count on the display seems far too high, too low, or does not move at all.
Likely causes
- The motion sensor counts movement, not cats — a passing dog or a robot vacuum registers as a visit.
- The sensor window is dusty.
- The counter has not been reset since the last tray change.
Fix it, in this order
- Wipe the sensor window. Clean the small sensor window with a dry cloth. Crystal dust is fine but it still builds a film.
- Move traffic away. Anything crossing the opening counts. A box in a hallway will over-count badly.
- Reset on each tray change. Clear the counter when you fit a fresh tray so the number means something.
When to stop and get help: A counter that never moves with a clean sensor and confirmed use has a sensor fault and is a warranty item.
It still smells
Common The box rakes normally but the room smells worse than expected, usually later in a tray cycle.
Likely causes
- The crystals are saturated. They absorb well early and much less well once loaded.
- Solid waste is sitting in the covered compartment longer than the crystals can dry it.
- It is an uncovered box, so there is no sealed drawer doing any containment.
Fix it, in this order
- Change the tray sooner. Tray life is a guideline, not a guarantee. A larger or more frequent cat will exhaust the crystals early.
- Stir the crystals. Mixing the bed weekly exposes dry crystals and noticeably extends useful tray life.
- Empty the waste compartment. Solids collect at one end. Clearing them is a separate job from changing the tray.
When to stop and get help: A persistent ammonia smell on a fresh tray can point at a cat health issue rather than the box. That is worth a vet conversation.