Nothing works on my 2003 watkins bengal hot tub

[Eoc]

I drained my tub yesterday and refilled it. i turned tge breaker back on and noticed no bubbles coming fromtge floor drain. I turned on the jets and they came on. I shut it off and tried it again and nothing works ftom the control panel. The panel is lit up and you can see all functions but nothing happens.  I turned off the breaker and removed the outer panel and then the iq2020 cover. I turned the breaker back on and saw both red and green led lights lit on heater relay panel and motherboard.  Then the lights went out on motherboard and the heater relay green light stayed on and a red led in center of motherboard was lit I think it was next to a label like D17 or D19 something like that.I did replace the heater relay earlier this year. Since no pumps or light will come on how do I tell if I have a bad motherboard?

[Hot Spring Official]

Sounds as though your circulation pump is the likely problem there. It should always run when the spa is powered on. Check for power to it and replace it if necessary. p/n 74427

[Eoc]

 I just went out with my fluke and measured everything I have 120 volts at the terminals I undid the circulation pump put a temporary plug on the end of wires and plug it into an extension cord and I have nothing at the circulation pump so thank you and I'll look up a part number and possibly see if I can order one local or order one from a warehouse thanks and see if that's my problem. I have a Watkins Bengal model M serial number M1 G1 257