Cummins-Onan KY error code 42 (KY)
Processor — a microprocessor ROM error occurred during self-test.
What to check, and in what order, is in the app. A step-by-step flow walks this code with the pass/fail measurements, wiring schematics and procedures that go with it, and it works offline in the bay.
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- Onan RV Generator Set KY Operator ManualCummins-Onan
Related codes
- 36 (KY)Engine Stopped — the engine stopped without receiving a command from…
- 37 (KY)Invalid Generator Set Configuration - the genset configuration is…
- 38 (KY)Over Current (Field Overload) — low power-factor loads.
- 41 (KY)Generator Rotor — the control is unable to sense field or output…
- 43 (KY)Processor — a microprocessor RAM error occurred during self-test.
- 45 (KY)Speed Sense — the control is unable to sense quadrature frequency.
- 47 (KY)Ignition — the control is unable to sense ignition.
- 48 (KY)Generator Field Sense — the control is unable to sense field voltage.