Roborock Error 19 — Charging Dock Issue

What Does This Error Mean?

Error 19 means the robot is on the dock but isn't charging — usually the metal contacts on the dock or robot are dirty.
Wipe both pairs with a dry cloth and re-dock.
If charging starts, you're done.
If not, check that the dock has power and try a different wall outlet.

Affected Models

Roborock S7
Roborock S8
Roborock Q7 Max
Roborock S5 Max
Roborock S6 MaxV

Common Causes

Charging contacts dirty — dust, pet hair, or oxidation on the metal pads
Dock not powered — adapter loose or wall outlet dead
Robot battery aged out (over 3 years) and won't accept charge
Dock-side charging circuit failed (uncommon)
Wrong-spec replacement adapter being used

How to Fix It

Wipe the contacts on the robot.

Flip the Roborock and find the two metal pads on the underside.
Wipe with a clean dry cloth.
If they look dull or oxidised, a pencil eraser brings them back to clean metal without damage.
Wipe the contacts on the dock.

The dock has matching contacts where the robot meets it.
Wipe those too with a dry cloth.
Hair and dust accumulate at floor level and the dock contacts are right there.
Check that the dock has power.

Look for the indicator LED on the dock — it should be on solid.
If it's off, check the adapter is plugged in firmly at both ends.
Try a different wall outlet to rule out a dead one.
Manually re-dock the robot.

Place the Roborock on the dock by hand, lining up the contacts carefully.
You should hear a chime within a few seconds and the battery indicator should start animating.
If charging starts, you've cleared Error 19.
Check battery age if everything else is clean.

Roborock batteries typically last 3 years.
If yours is older and the contacts and dock both check out, the battery is at end of life.
Roborock sells replacement batteries that slot in with a few screws — $40–$80 depending on model.

Frequently Asked Questions

Why doesn't my Roborock auto-dock to charge?

Auto-docking is a navigation feature — the robot finds the dock using its lidar or camera.
Failure to auto-dock isn't usually Error 19 specifically — it's a navigation issue with the dock placement or the room layout.
Error 19 is what shows when the robot is physically on the dock but can't charge.

Can I use a third-party Roborock dock?

Original Roborock docks are recommended for reliable charging.
Cheap third-party adapters can produce Error 19 even with a healthy robot — voltage tolerances on the charging circuit are tighter than they look.
If you've recently switched, switch back and see if Error 19 clears.