Ed Z Posted January 23, 2018 Report Share Posted January 23, 2018 (edited) Folks, Have a 2002 Maquis spa, with a 1 (of 2) new pumps and a new heater. Wired myself. Ran fine for several months, now that it's winter, seems to consistently be tripping the supply (not the GFI cut-out box) CB. Have some milder weather, so testing again, but what is reasonable to expect? In "standby mode", with only the one pump on low and the heater on is when this is happening. Is this a hot tub problem, or an electrical problem? Seems to run fine, even with all pumps on, for about 10 mins, then trips the CB. Thanks!! Z Edited January 23, 2018 by Ed Z added info Quote Link to comment Share on other sites More sharing options...
castletonia Posted January 23, 2018 Report Share Posted January 23, 2018 What size breaker and is the breaker original from 2002? I would lean towards breaker but without knowing how many amps the pumps are pulling, I'm not certain. If the heater was bad. 99% of the time it would trip the breaker and not allow you to reset unless you disconnect the heater or replace it. The pumps should be pulling 8-9 amps on high speed and the heater probably 15-16, so with everything running, about 32-34 amps. Quote Link to comment Share on other sites More sharing options...
Ed Z Posted January 25, 2018 Author Report Share Posted January 25, 2018 Thanks! The breaker in question is at the main box, maybe about 10 years old. Unfortunately, the previous owner only ran line for a 60A sub-box in the garage, which this is wired to. Yes, I checked the wire gauge, and its only 6AWG, so too small for anything bigger. I'm suspicious of the breaker, because when re-set, it feels "mushy". Anticipating another question, yes, there are a couple of other small draw items on the list (lights, cordless tool charger), but I've tested with everything else off, and get the same results. Ran it yesterday, with air temps in the 60's, and it ran for about 15 mins, eventually with one pump in low mode and the heater on. Quote Link to comment Share on other sites More sharing options...
Ed Z Posted January 27, 2018 Author Report Share Posted January 27, 2018 And the winner is.....Power! Changed out the old CB for exact same, just new, and tub seems to be back to normal. Will be keeping an eye on it, but 4 hours of heating without any issues. Looking forward to a good soak tonight! Quote Link to comment Share on other sites More sharing options...
Jersey Hot Tub Repair Posted January 29, 2018 Report Share Posted January 29, 2018 Just an FYI - NEC says a hot tub is supposed to be on it's own breaker. You shouldn't have outlets to plug in lights, tool chargers, etc. Dave Quote Link to comment Share on other sites More sharing options...
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