Roland

Hi everyone, after the winter it was time to take the poolheater out. Everythings seems to work but the only problem I have is that it will not heat. I have no error messages. The control starts with "sensing water temperature remaining = 1 minute" after this minute the next message comes on : "Restart Delay remaining= 5 minutes" after those 5 minutes it starts again with "sensing temperature" . and on and on and on.... when i push te big contactor for the compressor it starts, so this part works. I hope some one has the solution for this problem. kind regards Roland