Touchless Toilet Flush Kit, Adjustable Sensor, 1256315 Adapt k1954, Automatic Toilet Flusher - Easy to Install

How is that nothing happened when I tried to activated the sensor?

Make sure the battery case and the sensor are connected.Make sure the batteries in the case still have power.

The wheel rotates, the chain moves but no flush, why?

Make sure the wheel and the fapper is properly connected.

Check whether the chain is too long.

The wheels touches the flush valve when rotating.

Put the sensor more fare away from your flush valve.

The sensor works.But the water is too weak to fush thing away, why?

Check whether the chain is too long.Adjust the flushing time.

The sensor won't work when l wave my hand above it.

Adjust the sense range.

Make sure that indicating sticker that sticked on cover of the tank is locate right above the sensor in the tank.