If you have already replaced the batteries but you are using white-label batteries and/or of low cost batteries, they may not have a high enough capacity to run the product. This may affect the duration of time the product works. Only use batteries in accordance with market standards, recognised brands and recommended by the manufacturer.
97940_Check that there is still soapy solution inside. If there is, use the purge function indicated in the product instruction manual until the bubbles appear. After not using the product for some time it could be necessary to reactivate the purge function to make the bubbles appear again.
95939_For the correct operation of the suction engine it's necessary the use of high performance alcaline batteries as indicated in the product instruction manual. The batteries included in the product are only for the TRY-ME functions and they could be exhausted.