Deutronic DBL430-141115UL charger

The Deutronic DBL430‑141115UL is a high‑current industrial battery charger featuring MPC4 control board, 14 VDC output, and built‑in overcharge, temperature, and reverse‑polarity protection. Common failure points include the power MOSFET array (overheating or failure), the temperature sensor/thermistor circuit (misreading causing premature shutdown), and the reverse‑polarity protection diode or relay (shorted or open). For first‑check diagnostics, verify that the input supply matches the specified voltage and current ratings; inspect the output terminals for correct polarity and continuity across the MOSFETs; and review any fault codes or LED status indicators on the MPC4 board.[oss-gpt-20b]

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