Hi, you will have to take the plinth off and then take the black plastic cover off the front.Look inside with a torch and check if there is water in the base.Turn ALL the power off at the mains.then, drain any water out of the base.this should reset it.Check that the drain hose is raised up and not facing down as this causes a back fill, also do noy use 3 in 1 power ball tablets as these over foam.Hope all goes well.All the best.
FOXY
December 2008