Below are the most common faults for lawn mowers, hedge trimmers, brush cutters, chainsaws and blowers — easy to understand and simple to fix.
I. Common Faults of Gasoline Powered Garden Machinery
1. Fails to start or hard to start
Causes: No fuel / old fuel, faulty spark plug, clogged air filter, blocked fuel line, closed choke.
Solutions:
- Check gasoline and replace old fuel
- Clean or replace air filter
- Remove spark plug, clean carbon deposits, replace if broken
- Clear fuel line and check for cracked hoses
2. Weak power, unable to reach full speed
Causes: Clogged air filter, worn spark plug, slipping clutch, dull blades.
Solutions:
- Clean air filter
- Replace spark plug
- Sharpen blades
- Check clutch wear
3. Fuel leakage
Causes: Aging fuel hose, cracked fuel tank, carburetor overflow.
Solution: Replace hoses / gaskets and repair carburetor.
4. Loud noise & strong vibration
Causes: Loose screws, deformed blades, lack of bearing lubrication.
Solutions: Tighten screws, straighten or replace blades, lubricate bearings.
5. Mower won’t move / self-propulsion failure
Causes: Loose or broken belt, lack of gear oil, worn drive wheels.
Solutions: Adjust or replace belt, add oil to gearbox.
II. Common Faults of Electric / Lithium Garden Machinery
1. No response when pressing switch
Causes: Dead battery / poor contact, faulty switch, broken wiring.
Solutions:
- Reinstall battery and charge
- Clean dirty battery contacts
- Check switch and wiring
2. Starts then stops, lack of power
Causes: Low battery, overheated motor, excessive grass clogging.
Solutions:
- Fully charge before use
- Stop to cool down and clear clogged grass
- Avoid prolonged overloading
3. Battery won’t charge
Causes: Dirty contacts, faulty charger, aging battery.
Solutions: Wipe contacts clean, test with new charger, replace battery if needed.
III. Common Faults of Hedge Trimmers & Brush Cutters
1. Blades not cutting, jamming branches
Causes: Dull blades, excessive clearance, insufficient oil.
Solutions: Sharpen blades, adjust clearance, add lubricant.
2. Blades / chain overheating, abnormal noise
Causes: Lack of oil, foreign objects, overtight installation.
Solutions: Remove debris, lubricate, adjust tension.
IV. Common Faults of Pole Saws & Chainsaws
1. Won’t cut, gets stuck
Causes: Dull chain, loose chain, lack of bar oil.
Solutions: Sharpen chain, adjust tension, add chain oil.
2. Oil leakage, heavy smoke
Causes: Incorrect fuel-oil ratio, carburetor abnormality.
Solutions: Use standard fuel mix, repair carburetor.
V. Quick One-Sentence Summary
No start: check fuel, air filter, spark plug.
No power: clean filter, sharpen blades, replace spark plug.
Not rotating: check wiring, belt, grass clog.
Overheating & noise: lack of oil, loose parts, overloading.
Electric faults: check battery first, then contacts, then switch.
