So a couple of months ago, my SWCG quit producing chlorine, but all my lights were working. So I cleaned the salt cell, and after a year of use - it was still pretty spotless. Nothing happened. So I kept googling, and there was mention of the current limiter (the quarter size black thing) on the PCB. So I desoldered the old one. At first, it didn't appear to be damaged, but sure enough, after very close inspection - the two parts were "undone", and it basically split pretty easily. So I took the old part number off the old limiter, and ordered one next day from amazon prime. Resoldered it back in, and it was working beautifully! It's a very clutch fix to a seemingly large problem. You'd think hayward would do something about it - but I digress.
Two months later, I'm having the same problem...except this time, no lights are on the board. But after researching, I'm assured it's the same problem again.
Every post I've read about the current limiter mentions digikey part number 570-1062-ND, which is SL32 2R025. However, looking back at my order...I ordered AS32 2R02, or digikey part number 570-1105-ND. The specs are below for each:
Data SL32 AS32
R@25 deg C 2.0 Ohm 2.0 Ohm
Tolerance +/- 20% +/- 25%
Current (SS max) 25A 25A
R@Current 0.024 Ohm 0.0185 Ohm
Diameter 30mm 30mm
Approvals UL/CSA UL
Lead Spacing 7.8mm 7.1mm
My question is, are the differences in specs that much different, or are the two parts interchangeable? The leads on the AS32 are way heavier vs the SL32...but I'm wondering since the replacement AS32 has already blown within a couple of months - that maybe I should try the SL32 with a tighter tolerance and higher resistance...but shoot, I may have that backwards. Anyone familiar with the tech specs of these two?