chucksrt Posted May 15, 2024 Report Posted May 15, 2024 I have a cape cod spa that I bought new in 2004. I have done some work to it over the years but recently I needed to replace 2 of the pumps and the control board and heater. It has a Balboa control board and the pump #3 fuse is blowing. The pump will start and spin almost 1 revolution then blow the fuse. The fuse on the control is a fast blow 10A 250v. This is the hot tubs 3rd control over the years, but I swear the original control was equipped with a slow blow fuse. Can anyone tell me if motor/pump fuses are typically fast or slow blow fuses. I am waiting for the retailer who sold me the control and heater to contact Balboa to confirm, but they have not been great at paying attention to what I said was happening. The last 2 controls I bought have been from the same company but the fuse on both controls came with fast blow fuses and it did work for a while. The new pump is rated for 10 amps and on start up does reach almost 40 amps when almost instantly drops down to about 3 amps of draw. I am told that this is normal which is why I am questioning the fuses that have come with the last 2 controls. Any input is greatly appreciated. Thanks, Chuck Quote
Stratmaster Posted June 2, 2024 Report Posted June 2, 2024 Had same issue on mine motor on pump was fried after pump had a small leak Quote
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