breaz25

Thanks for the info. I'll be ordering a pump in the near future and see if I can get the hot tub back up and running. Thanks for all the information. I will post my results.

Yes, all the lights go out when the 20amp trips. So I disconnected the circulation pump and tried it again. Seems that is my problem. The jets are running fine with the circ. pump disconnected and the breaker doesn't trip. The ready light and power light on the display panel blinks on and off continuous with the circ. pump disconnected. Is that normal or indicate something else? Thank you for the troubleshooting steps. I guess I will be replacing the circ. pump. Any recommendations for buying one? Thank You again PreservedSwine .

I don't have a service manual and the codes are not in the owner's manual. I didn't come up with anything yet on Google either. Anyone know where to obtain a service manual?

I recently did a water change on the spa. The spa had been turned off at the main panel. Once restoring power the 20amp breaker in the subpanel will trip within 5 secs. It doesn't trip at the main panel. I mad a video of the IQ2020 board lights but not sure how to post it to the forum. The heater 30amp breaker doesn't seem to have a problem. I think this is a 2004 or 2005 model. Here is what happens on the logic board: 1. The breaker is turned on 2a. LIM OK lights turns GREEN D13 2b. Control Unplugged turns RED D12 2c. Appliance controls D17 turns RED 3. Then a clicking noise and the D13 and D12 lights go off but the D13 LIM OK light stays GREEN. The Heater 30AMP breaker is off. Any ideas of the problem? suggestions? The unit has been running with no problems since it was purchased around 2004.