Can you hear the pump running when turned on , unplug the pipe from the jet's turn on washer check water from pipe ,
Possible causes washer jet's blocked pump blocked with sediment . pump gone ,faulty can you get the pump to run on the bench ? electrical connection to pump rusty , advise take it to reputable garage they may find the fault quickly and may be a simple fix , you could phaffing for ages , too cold for phaffing but not to cold for elephants