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Discussion Starter · #1 ·
Hey guys, curios if anyone experienced this. I did the modification to get the charger to work on 240v. It's been fine for about month but lately after about 1-2 hours of charging, the charger stops and i see the red light is on. If i unplug it and plug it back in, its fine again. Nothing is hot or anything like that.

Looking at the plastic 'guide' on the charger it seems a solid red light is a ground issue. I checked the wiring and cant find anything wrong with it, i have 60amp cable running outside to a panel for my hot tub which draws 36 amps on a 40amp GFCI and i added a 15 amp dual poll breaker for the volt. I tried connecting it to neutral instead of ground and same thing. Checked all the connectors and i cant find any issues to be honest.

Not sure if this because i'm making the charger do something it should not (run at 240 vs 120), i'm interpreting the red light wrong or something else i did not consider.

Advice appreciated!
 

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I think that further investigation of the grounding circuitry all the way back to the circuit breaker panel may reveal the answer to your problem. I installed my hot tub and ended up with two ground circuits that played hell with the system. Removing one of the grounds corrected my problem.
 

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If what is mentioned above does not help use a small piece of sandpaper and clean all the contacts on all the connectors that are visible. Whatever female connector you are plugging into may also need to be cleaned/replaced.
 

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Be careful with the hot tub circuit, your breaker should be a 50 by code. Take the max current draw, multiply by 1.25 then round up to the next commercially available size.
 
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