Jandy Industries PCB #8124A Pool control board

Jandy PCB #8124A is the main control and power distribution board for the AquaLink Power Center, handling 25‑V AC supply, relays, fuses, and signal routing to pool/spa components. Common failure modes include a blown 3‑amp fuse or damaged relay contacts, burnt solder joints on the 52‑pin layout, and degradation of the onboard voltage regulator that can cause intermittent operation or total loss of power to connected accessories. First‑check diagnostics: verify the 25 VAC input at the board’s terminals, inspect the fuse and relay pins for continuity or corrosion, and perform a visual scan for burn marks or cracked traces before proceeding with component testing or replacement.[oss-gpt-20b]

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