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Do you have this symptom? When you push in the start switch, the generator starts up, but dies as soon as you let go? You may have a defective voltage regulator instead of (or in addition to) a control board - See this troubleshooting

Control Board - Replaces Onan #: 300-3763, 300-3763-01, 300-3763-02,
300-3763-03, 300-3763-04, 300-5268-01 and 300-5268-02


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  • Part #: 3003763-A
  • 14 In Stock
  • Manufactured by: Dinosaur Electronics