Update: Fixed Intellicenter IntelliChlor 12v circuit breaker that keeps tripping

[tomas21]

Background: So just about a year after having IntelliCenter with the built in intellichlor board and transformer.... ..

• Early last year the IntelliPH board connector went out like most do in that internal connector area (was replaced under warranty) all good
• Fast forward to now (8 months) later the IntelliChlor power supply board went out see some marks around solder pins

Troubleshooting: Did all the tests as others mentioned with voltage, unplugging salt cell, etc and isolated the issue to the IntelliChlor board going bad part no: 521218.

Fix: Swapped the IntelliChlor board out for a new one and back in business (12v breaker isn't tripping, green light is activated now on the board, and intelliPh & Salt cell are all good)


Potential root cause: The top heat sink screw was not screwed in all the way flush to the rectifier board on the inside (Check and make sure your top heat sink screw is snug)

• This IntelliCenter was purchased during the Covid time-frame and not sure if folks at Pentair who were assembling these units were going quick due to lack of staff, shortages, etc but I noticed one major thing...
• The heat sink screw at the top was NOT screwed down all the way flush.... so it was never completely touching the heat sink which is suppose to help reduce the bridge rectifier from overheating from what I have heard
• So from day 1, the top part of the IntelliChlor surge board had play in it and the heat sink screw was never touching the screw to rectifier.... maybe that is what happened and over time it overheated based on the pics of it (who knows maybe related the issue on the IntelliPH too)
• I found this information from this install guide a minute marker 5:30... that the bridge rectifier overheat protection comes from the heat sink top screw

 

[PoolStored]

Congrats!