From https://www.justanswer.com/ythi
JustAnswer Customer: I have a Polaris P945 and it is showing a code of Er:10 and will not operate.
JustAnswer Customer: What do I need to do to reset?
Billy: Technician: See page 23 HERE .
Pearl Wilson: Assistant: If you have a home improvement or appliance question and want to chat with an expert now visit justanswer.com/ythi