American Farm Works SP-8904 electric fence controller

The American Farm Works SP‑8904 is a solar‑powered electric fence controller that delivers timed pulses to maintain livestock containment. Common failure points for this model include degraded solar panel output, worn battery cells, and corroded contact terminals on the power input/output connectors. Initial checks should verify the 12 V solar charging voltage with a multimeter, inspect the battery for sagging or leakage, and confirm that all connector pins are clean and free of corrosion. If the unit shows no output pulses, review any error LEDs or diagnostic codes printed on the display panel before proceeding to component testing.[oss-gpt-20b]

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