I have a 2010/2011 HotSprings Grandee Spa that is not heating. The power and ready light are flashing but no heat. I think the tub was not quite filled and this is when the issue started. When I checked the system via the menu it states "functioning". I have cleaned the filters, drained and refilled the spa (twice). I refilled via the gray sandpipe and after filling the lights are still flashing (ready and power). I have taken the filters out, started the system and still the blinking "ready and power lights" and no heat.
Any help would be greatly appreciated.
Thanks so much.