I hope someone can help me: I had an electrician at my house that installed a pool timer. Since installation, the switch of the pool pump trips everytime during the course of the pump being on, resulting in me constantly having to put the switch on again. I have tried to contact the installer, but since paying him, he is missing in action and do not reply to my mails or smses. Do someone know why this switch will trip? The pump will sometimes run for an hour before tripping. How can I fix this or is there someone that can help?