Engine Will Not Start

Brake not pushed down.

PTO/RIO switch in on position.

Relieve fuel line pressure if run out of fuel.

Upper (switch) fuse blown.

Improper fuel.

Dirty or faulty injectors, see your John Deere dealer

Plugged fuel filter.

Spark plug wire(s) loose or disconnected.

Spark plug(s) not gapped correctly.

Engine Is Hard to Start

Loose or corroded electrical connections.

Stale or dirty fuel.

Battery voltage is too low.

Improper fuel.

Plugged fuel filter.

Dirty or faulty injectors, see your John Deere dealer.

Spark plug(s) fouled. Check choke position.

Faulty spark plug(s).

Spark plug(s) not gapped correctly.

Engine Misfires Under Load

Stale or dirty fuel.

Improper fuel.

Plugged fuel filter.

Dirty or faulty injectors, see your John Deere dealer

Faulty spark plug(s).

Spark plug(s) not gapped correctly.

Engine Runs Unevenly

Fuel line or fuel filter plugged.

Stale or dirty fuel.

Improper fuel.

Loose electrical connections.

Air cleaner element plugged.

Dirty or faulty injectors, see your John Deere dealer.

Engine Overheats

Engine air intake screens plugged.

Radiator fins plugged.

Engine oil low.

Engine operated too long at slow idle speed.

Coolant low.

Loose or defective fan/alternator belt.

Engine Loses Power

Engine overheating.

Improper fuel.

Too much oil in engine.

Air Restriction Indicator - Air cleaner element plugged.

Engine Stops When Brake Is Disengaged

Seat switch not engaged.

Seat switch disconnected or broken.

PTO Stops

Engine overheated. Allow engine to run and cool until needle on temperature gauge returns to the green range.

Starter Does Not Work Or Will Not Crank Engine

Brake pedal not down.

PTO/RIO switch in ON position.

Faulty seat switch.

Battery terminals corroded.

Upper (switch) fuse blown.

Battery dead or low charge.

Starter Turns Slowly

Low battery output.

Engine oil viscosity too high.

Loose or corroded connections.

Battery Will Not Charge

Dead cell in battery.

Low engine speed or excessive idling.

Battery cables and terminals dirty.

Fan/alternator belt loose or damaged.

Battery Discharge Indicator Stays On With Engine Running

Low engine speed.

Defective alternator or regulator.

Defective battery.

Lights Do Not Work

Light fuse(s) blown.

Harness unplugged.

Loose or burned out bulb.

Machine Vibrates Too Much

Attachment drive belts worn or damaged.

Check and grease driveshafts.

Engine speed too low.

Engine overloaded.

Broken engine mount.

Machine Will Not Move With Engine Running

Parking brake locked.

Transaxle oil level low.

Free-wheeling lever engaged.

Mower (or other attachment) Stops When REVERSE or BRAKE Foot Pedal is Depressed and Attachment Is Engaged

Normal condition. See Using Reverse Implement Option (RIO).

Mower Deck Will Not Raise or Lower

If installed, be sure hydraulic cylinder lockout valve is open.

Steering Not Working Correctly

Improper tire inflation pressure.

Transaxle oil level is low.