Pool Support LLC
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Coleman Horizon 400 Won't Stop Heating.
Pool Support LLC replied to jbailey's topic in Portable Hot Tubs & Spas
Same problem. Filter cyles set to 1 hour each with no heat. Low speedjet comes back on and drives the temp up. I can open relay with jet button and it cuts off for 5 seconds, then it cuts back on. Been getting OH error, now SN1 error. Should I replace hi-limit or is it a board issue? TY, Steve