eufy robot vacuum mopping function not working

If the mop pad stays completely dry on a Eufy G30, the fault is usually with the water tank, filter/vent, outlet blockage, or the water control valve/pump inside the tank assembly. The good news is that the basic checks are usually DIY.

1. Check the tank is the correct 2-in-1 mopping tank Make sure you are fitting the actual water tank/dust box combo properly and that it clicks fully into place. If it is not seated correctly, water may not feed.

2. Prime the mop pad properly On many robot mops the pad does not get soaked instantly by itself. Dampen the mop cloth with warm water first, wring it out, then refit it. Try a short run on a hard floor. A completely dry cloth can sometimes make it seem like no water is being dispensed.

3. Inspect the water outlets and vent Remove the tank and check the small water holes underneath for limescale or debris. Clean them gently with a pin or soft brush. Also check the tank vent/breather hole if fitted - if blocked, water will not flow.

4. Check the tank filter/valve If there is a small rubber valve, silicone plug, or filter in the tank outlet, make sure it is not stuck closed. Fill the tank and see whether water will slowly drip through when held over a sink.

5. Consider internal failure of the tank If the tank is full, clear, fitted correctly, and still bone dry, the internal valve or wick system may have failed. On these machines this often means replacing the water tank assembly rather than repairing it.

Safety reminder: isolate the appliance from the mains before inspecting any internal parts. If the fault involves electrical testing or dismantling beyond the removable tank, use a qualified engineer.

Most likely it is fixable without an engineer if it is just a blockage, but if the tank itself has failed, replacement is usually the practical answer.

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