i bought a hot tub a few years ago, i love it, but its had two problems..

its a pinnacle series 2 pack, with a balboa top side...

-once it just stop working, i sent entire pack and top side back and they fixed it..

-second time it was overheating, OH... sent entire pack back, they fixed it..

unfortunately i dont know what they did to it both times it was sent back..

now its out of warranty and it giving me the OH top side flashing signal...
i touch the pad and it starts back up and heats back up...

it did this about a month ago, and has been fine up until today...
its running now and seems to be fine, for how long i dont know...

i dont have anyone good local that can come out and fix it,
ive taken the tub apart several times myself so i feel comfortable fixing whatever it might be...

any ideas would be great...
thanks

OH (overheat) is related to low flow(clogged filter, low water or obstructed skimmer, skimmer door jam)

My spa heater is overheating but I have the temperature guage turned all the way off on the heater and on the top of the tub with the adjustment knobs. I read that a dirty filter or restricted flow can overheat, but when I have it completely turned down to the minimum setting...how is it still overheating? It is at 110 degrees and I can't get it down. Please help!!!!!!! I can look up the number on the heater if that would be helpful.

i have cleaned everything really well,
it still does it,

can it be something in the box that regulates the temp?