Hi everyone,
I'm at my wits end, I have a Tiger River Caspian spa that quit heating a while ago. I've since replaced the heater relay board (which was fried), both thermistors, and recently the heater. I live in Iowa and the temps are dropping daily and I need help figuring this out. Currently, when power is applied to the hot tub my display has "Ready" flashing. According to the spa place in town, they tell me it is most likely a flow problem, however, the circulation pump is working and I believe I filled it up so there is no air lock but to ensure I had the air removed I opened the pipe around the pump. I've run the pump for about 30 minutes, then reset by cutting power for about a minute. Still no heat. When the cover of the iq2020 is removed I noticed there are two LEDs, one for LIM OK, which is green. The other is HTR ON which when first powered on is red for about ten seconds then cuts out and isn't lit at all. Any idea what is causing my problem? I've searched the internet, watched videos, and still have no clue. Is my iq2020 motherboard fried? Any advice is much appreciated!!!!
Thanks,
RIck