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- 70 amp breaker gets hot then trips
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04-09-2010, 04:50 PM #1
I am helping a friend get their spa up and running. When we turn it on it runs for 20 mins then shuts down;the 70amp breaker trips. Narrowed it down to when the heat is on but checked heaters and both look almost new. Has a (fls) or switch on one of the heaters that has adjustments but not sure how to adjust the wheel (up or down or if it matters). Also it has some overload switches for the aerator, pump and heater but none of them ever trip. One of the relays (2) is moderately rusty I havent checked them yet but think one runs pump high and low and the other is the heater or aerator not sure what tocheck at this point. I can send pics if it would help.
04-09-2010, 06:39 PM #2
A pressure switch that is not adjusted wouldn't cause the GFI to trip. I would turn the power off the spa and disconnect the heater, then power back up and run the pump for that time period to see if it trips. Even though a heater looks clean the element could have a very small pin hole in it somewhere causing it to short.
05-02-2010, 08:14 PM #3
Sorry I didnt get back sooner. I finally gave up and took the whole system pack off the spa. It is seperate of the heating system. The original system is comprised of 2 solenoids 6 override breakers; 2 for pump, 2 for blower, and 2 for the heater. I discovered that one of the solenoids is no longer functioning (I think the blower one, which keeps it in heavy amp draw. Looks like I may need new solenoids for both but not sure where to get them.
05-02-2010, 08:20 PM #4
I took the pack off the spa and started doing some trouble shooting. Found that one of the solenoids no longer switches so it stays in the heavy amp draw mode. Where is a good place to find solenoids or can you recommend something else.
05-04-2010, 07:34 PM #5
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