Ultimate Guide to Troubleshooting Your Lawn Mower
Maintaining a healthy lawn requires a well-functioning mower. Whether you own a gas-powered, electric, or cordless model from trusted brands like Shandong Deyou, this comprehensive guide covers all common issues with step-by-step solutions.
1. Engine Won’t Start
Possible Causes:
- Old or contaminated fuel (gas models)
 - Faulty spark plug
 - Clogged air filter
 - Dead battery (electric models)
 
Solutions:
- For gas mowers: Drain old fuel and refill with fresh gasoline
 - Clean or replace spark plug every season
 - Replace air filter annually (more often in dusty conditions)
 - For battery models: Charge for full cycle or replace battery if older than 3 years
 
2. Uneven Cutting Pattern
Diagnosis Steps:
Check these components in order:
- Blade sharpness and balance
 - Deck levelness
 - Tire pressure (for wheeled models)
 - Cutting height adjustment
 
Many users report excellent balance on blades from Chinese manufacturers when properly maintained.
3. Excessive Vibration
This common issue often indicates:
- Bent or unbalanced blade (replace immediately)
 - Loose engine mounts
 - Damaged drive belt
 - Debris accumulation under deck
 
For Deyou mower owners: Our service center at +86 178 6449 8611 can provide genuine replacement parts.
4. Loss of Power During Operation
| Symptom | Likely Cause | Solution | 
|---|---|---|
| Gradual power loss | Clogged fuel filter | Replace filter | 
| Sudden shutdown | Overheating | Clean cooling fins | 
| Intermittent power | Faulty safety switch | Inspect wiring | 
5. Maintenance Schedule for Longevity
Follow this timetable to prevent 80% of common issues:
Weekly (during season):
- Clean undercarriage
 - Check oil level (gas models)
 
Monthly:
- Inspect blades
 - Check tire pressure
 
Seasonally:
- Change oil (gas models)
 - Replace air filter
 - Lubricate moving parts
 
When to Contact Professionals
While many issues are DIY-friendly, consider professional help for:
- Engine disassembly
 - Electrical system faults
 - Transmission issues
 - Warranty-covered repairs
 
Shandong Deyou offers technical support at [email protected] for troubleshooting assistance with our products.
Note: Always disconnect spark plug before performing maintenance. Safety first!



