Perkins generator controller shows E006 and engine does not crank at all

Safety: Isolate the generator from load. When working on the starter, disconnect the negative battery cable to prevent accidental cranking.

• Check battery voltage: Measure voltage at the battery terminals. For a 12 V system, expect around 12.6 V fully charged; for 24 V, around 25.2 V. If significantly lower, charge or replace the batteries.
• Inspect terminals and cables: Clean corrosion from battery posts and cable lugs. Tighten all connections at the battery, starter motor, and engine ground strap.
• Test starter solenoid: During a start command, check for control voltage at the solenoid small terminal. If present but the starter does not engage, the solenoid or starter is likely faulty.
• Bypass test (advanced): Briefly bridge the main starter terminals with an insulated tool to see if the starter turns (only if you are trained and local safety rules allow). If it cranks when bridged, the solenoid or control circuit is at fault.
• Replace starter assembly: If the starter draws excessive current, makes grinding noises, or fails to turn despite good voltage, replace the starter motor assembly with a Perkins‑approved unit.