Hesston 700720674 Rev. A Controller

The Hesston 700720674 Rev. A is a programmable control board used in agricultural balers and other heavy‑equipment applications to monitor sensors, drive actuators, and log data. Common failure modes for this class of controllers include power supply degradation (brownouts or surges), I/O module faults (shorts or open circuits on sensor inputs/actuator outputs), and firmware corruption from improper updates. First‑check diagnostics: verify the 24 V DC rail and isolated power rails are within spec; inspect all connectors for corrosion, broken pins, or loose contacts; and review any stored error codes or watchdog resets in the controller’s diagnostic log.[oss-gpt-20b]

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We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.

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