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If your pump suddenly stops on you, or you can hear it working yet there is no suction, the problem and solution are usually simple. Your pump's parts may be loose. Try reattaching any removeable parts and turn it on again. Try a different electrical outlet. If this doesn't work, try using battery power. There could be a problem with your cord. It is difficult to find replacement parts for pumps without direct contact with the manufacturer. Hopefully you kept your receipt and if nothing else can turn that contact with the seller into something productive. This is a time when a back-up hand-held pump might be useful.