OmniLogic Hayward T-Cell PCB burned board

[B.Deputy]

I found this exact same issue on my board. What causes it to happen? How to I prevent it from happening again?
- Hayward Omnilogic Salt Cell Burned at motherboard


Since I have the Omni HL Base (and not AquaRite)
- Looks like the part to replace on the main board is 0015247103, CONN RCPT 10POS 0.165 GOLD PCB, Molex: https://www.digikey.com/en/products/detail/molex/0015247103/480806
- And the HLX-PCB-TCELL Board is $125-150

 

[Guy559]

You found the right thread (the one you linked to). In short, it’s as AJW22 stated: “High salt causing high amps combined with some corrosion in the connector causing resistance on the pin connection all causing heat at the pin.”

Doesn’t always have to be high salt but if cell is pulling high-ish amps AND there’s oxidation on the connector pins, that can cause an arc under the right conditions. To help prevent connection corrosion, I typically unplug my connectors re-plug periodically to provide cleaner connection.

 

[ajw22]

I found this exact same issue on my board. What causes it to happen? How to I prevent it from happening again?
- Hayward Omnilogic Salt Cell Burned at motherboard

High salt causing high amps combined with some corrosion in the connector causing resistance on the pin connection all causing heat at the pin.

Keep your salt at the low end of the range 2800-3000 ppm and amps under 7.