Took advantage of the warm 1/1/11 day and drained and refilled my hot tub. When I turned the power back on I heard the water circulating for a few seconds and then it went dead quiet. Looked at the control panel and it shows -----, which according to the manual is a watchdog error and the tub is inoperable and says I should contact authorized service personnel. Shut power off for a few minutes and turned it back on thinking it would reset itself, but to no avail. Anyone have any suggestions?