Controller shows E02 and the engine cranks but does not fire, then locks out on shutdown.

Safety: Isolate battery negative and ensure no open flames. Diesel fuel is flammable; use absorbent pads for spills.

• Check fuel level: Confirm the day tank and bulk tank have adequate fuel and that any manual isolation valves on the JCB fuel line are open.
• Inspect filters: Locate the primary and secondary fuel filters on the JCB engine (often spin‑on canisters). Check for contamination or water. Replace if clogged and prime according to the engine manual.
• Bleed air: Use the manual priming pump or electric lift pump bleed screw to remove air from the system until fuel flows bubble‑free.
• Test lift pump: With battery connected, turn key to run and listen/feel for the electric lift pump operation. If silent, check fuse and relay; replace the lift pump if not running with power present.
• Check fuel shutoff solenoid: Verify the fuel solenoid on the injection pump is energizing during crank. If not, test voltage at the solenoid and replace if it does not actuate.