Hi and welcome to Just answer.
Initially, it sounds like you have a blown seal, much like an o-ring, some where in the wand connection. If you can dis-assemble the device, voiding any remaining warranty by the way, you can try to just clean the o-ring area and it may become usable for another year at the most. Contact the vendor if possible for an OEM replacement o-ring so that it matches in size and thickness correctly.
Hope this information will be helpful.
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