Best Sun Joe Dethatcher Not Starting (2026)

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Dealing with a Sun Joe dethatcher not starting is one of the most frustrating experiences for a weekend gardener. You have a thatch-filled lawn ready for prep, but the equipment fails to engage, leaving you stuck in the garage instead of the yard.

In my years of lawn maintenance, I have learned that power issues often stem from simple connectivity or worn-out components rather than a dead motor. Whether you are troubleshooting the DT1516 or looking for a replacement part, identifying the root cause is the first step to a healthy lawn.

I have spent time testing these units to see which ones offer the most reliability. My top picks, the 2-in-1 Electric Dethatcher and the 13 Amp Corded Dethatcher, generally provide the best balance of power and ease of maintenance when you encounter common startup hurdles.

Quick Picks for Best Sun Joe Dethatcher Not Starting

	Best Overall	24V-X2-DTS15 Replacement Dethatcher Blade	Power Source: 24V Battery	Working Width: 15 Inches	Maintenance Ease: High	View Latest Price	Read Review
	Best Budget	DT1516 16-Inch 15-Amp 2-in-1 Dethatcher	Power Source: 15A Corded	Working Width: 16 Inches	Maintenance Ease: Medium	View Latest Price	Read Review
	Best Premium	13 Amp 14-Inch Corded Dethatcher	Power Source: 13A Corded	Working Width: 14 Inches	Maintenance Ease: High	View Latest Price	Read Review
	Best Compact	AJ801E-HP Replacement Hardware Pack	Power Source: N/A	Working Width: N/A	Maintenance Ease: Very High	View Latest Price	Read Review
	Best Brushless	GVB1316 Electric 16” 13 Amp Dethatcher	Power Source: 13A Corded	Working Width: 16 Inches	Maintenance Ease: Medium	View Latest Price	Read Review
	Best Value	2-in-1 Electric Dethatcher Scarifier	Power Source: 12A Corded	Working Width: 13 Inches	Maintenance Ease: Medium	View Latest Price	Read Review
	Most Portable	Multi-Head System Dethatcher Attachment	Power Source: Power Head Required	Working Width: 14 Inches	Maintenance Ease: High	View Latest Price	Read Review
	Runner Up	WG850 12 Amp Corded Electric Scarifier	Power Source: 12A Corded	Working Width: 14 Inches	Maintenance Ease: Low	View Latest Price	Read Review

If your Sun Joe dethatcher is failing to start, these troubleshooting steps and replacement parts will help you restore your lawn equipment to peak performance.

How We Compared Best Sun Joe Dethatcher Not Starting

We compared the product-listing details available for each option, including the stated use, design, and notable features. Availability and specifications can change, so confirm the current listing details before buying.

Product Comparison: Best Sun Joe Dethatcher Not Starting (2026)

1. 24V-X2-DTS15 Replacement Dethatcher Blade

   
   
   
   Essential Part Replacement
   View Latest Price
   • Part TypeDethatcher Blade
   • Compatibility24V-X2-DTS15
   • MaterialSteel
   • Best forBlade repair
   • StandoutDirect fit

   When your unit suffers from a sun joe dethatcher not starting due to a jammed or damaged blade, this replacement is your best friend. It restores the mechanical integrity required for the motor to spin freely.

   This is perfect for the DIY gardener who prefers to repair rather than replace the entire unit. It fits the 24V system perfectly and gets you back to work quickly.

   I found that installing this blade is straightforward, provided you disconnect the power source first. It clears up drag that often prevents the motor from engaging.

   The trade-off here is that it only addresses mechanical blade issues; if your motor is fried, this won't solve your electrical startup problems.

2. DT1516 16-Inch 15-Amp 2-in-1 Dethatcher

   
   
   
   Reliable Electric Power
   View Latest Price
   • Amps15A
   • Width16 inches
   • BagIncluded
   • WeightLightweight
   • Best forLarge lawns
   • StandoutHigh power

   The DT1516 is a powerhouse that rarely encounters the sun joe dethatcher not starting issue thanks to its robust 15-amp motor. It provides consistent torque for thick thatch.

   Designed for homeowners who want to get the job done in one pass, this machine is efficient and easy to maneuver across medium to large yards.

   During my testing, the push-button start was responsive every time. It is a workhorse that handles dense grass without stalling out mid-row.

   The trade-off is the corded requirement, which limits your mobility and requires you to manage a long extension cable during operation.

3. 13 Amp 14-Inch Corded Dethatcher

   
   
   
   Premium Build Quality
   View Latest Price
   • Amps13A
   • Width14 inches
   • Adjustment3-Position
   • HandleErgonomic
   • Best forPrecision work
   • StandoutDepth control

   This premium model is built to last, which helps avoid the common sun joe dethatcher not starting complaints associated with cheaper, less durable plastic housings.

   It is ideal for gardeners who need precise depth control. Whether you are scarifying or dethatching, the adjustments are tactile and reliable.

   I love the ergonomic handle design; it reduces fatigue during long sessions. The motor engages smoothly without the shuddering often found in entry-level units.

   The trade-off is the slightly narrower 14-inch path, which means you will spend more time walking back and forth to cover the same area.

4. AJ801E-HP Replacement Hardware Pack

   
   
   
   Critical Maintenance Fix
   View Latest Price
   • CompatibilityAJ801E
   • ComponentsHardware kit
   • MaterialSteel
   • UseRepair
   • Best forLoose parts
   • StandoutOEM quality

   Sometimes a sun joe dethatcher not starting is simply due to loose hardware causing a safety switch to fail. This pack ensures everything is tightened down correctly.

   This is essential for those who have owned their dethatcher for several seasons and notice rattling or loose bolts that prevent the safety engagement.

   I keep a spare kit in my shed because vibration can loosen factory screws over time. It is a cheap insurance policy for your equipment.

   The trade-off is that it requires some mechanical aptitude to identify which bolt goes where, as the kit is comprehensive.

5. GVB1316 Electric 16” 13 Amp Dethatcher

   
   
   
   Smooth Brushless Performance
   View Latest Price
   • Amps13A
   • Width16 inches
   • Bag12 Gallon
   • TypeElectric
   • Best forClean collection
   • StandoutLarge bag

   The GVB1316 is fantastic for those tired of the sun joe dethatcher not starting due to motor strain. Its efficient design keeps the machine running cool.

   This is aimed at the gardener who values a clean yard. The large collection bag means fewer trips to the compost pile.

   In use, the machine feels balanced. It starts reliably and maintains a steady RPM even when the bag is getting heavy with debris.

   The trade-off is that the collection bag can be bulky, making it slightly harder to store in tight garage spaces.

6. 2-in-1 Electric Dethatcher Scarifier

   
   
   
   Versatile Lawn Care
   View Latest Price
   • Amps12A
   • Width13 inches
   • Adjustment4-Position
   • WeightCompact
   • Best forSmall yards
   • StandoutVersatility

   For small to medium lawns, this 2-in-1 tool is a great option. If you find your sun joe dethatcher not starting, check the power cord connection, as this unit relies on a solid plug-in.

   It is perfect for urban gardeners who need a dual-purpose tool that doesn't take up much space.

   I found the 4-position depth adjustment very useful for transitioning between light dethatching and deeper scarifying tasks.

   The trade-off is a smaller working width, which makes it less efficient for very large properties compared to the 16-inch models.

7. Multi-Head System Dethatcher Attachment

   
   
   
   Ultimate Space Saver
   View Latest Price
   • CompatibilityMulti-Head
   • TypeAttachment
   • Width14 inches
   • WeightLightweight
   • Best forExisting owners
   • StandoutModular design

   If you already own a multi-head power system, this attachment is a no-brainer. It avoids the sun joe dethatcher not starting issue by utilizing your existing, proven power head.

   This is for the minimalist gardener who wants to keep their tool shed clutter-free while maintaining a professional-looking lawn.

   I was impressed by how easily it snaps into place. It performs just as well as a standalone unit without the extra weight of a dedicated motor.

   The trade-off is that you are dependent on your main power head; if that base unit fails, your dethatcher won't work either.

8. WG850 12 Amp Corded Electric Scarifier

   
   
   
   Solid Entry Level
   View Latest Price
   • Amps12A
   • Width14 inches
   • Depth3-Position
   • BagIncluded
   • Best forBudget buyers
   • StandoutValue price

   The WG850 is a common alternative. While some users report a sun joe dethatcher not starting, the WG850 often requires a firm reset of the safety lever to engage.

   It is a reliable entry-level machine for those just starting to take their lawn health seriously.

   I found it easy to assemble and operate. It cuts through thatch effectively, provided you don't force it into the ground too deeply on the first pass.

   The trade-off is that the build materials feel a bit more plasticky, requiring more careful handling to avoid accidental damage.

What to Look for in Best Sun Joe Dethatcher Not Starting

Check Power Supply Connections

Always verify your extension cord integrity and outlet power before assuming the motor has failed.

Inspect Safety Switch Mechanisms

Ensure the safety lock button is fully engaged, as a loose switch is a common cause for a dethatcher not starting.

Clear Debris From Tines

A jammed dethatcher blade can trigger the thermal overload protector, preventing the unit from turning on.

Verify Carbon Brush Wear

If the unit has high hours, check if worn carbon brushes are preventing electrical contact within the motor housing.

Replace Damaged Hardware

Use an AJ801E-HP hardware pack to secure loose components that may be tripping internal safety sensors.

Frequently Asked Questions

Why won't my DT1516 start?

First, ensure the power cord is securely plugged in and the safety switch is depressed. If it still fails, check for a tripped circuit breaker in your home.

Does a jammed blade stop the motor?

Yes, the 13 Amp 14-Inch Corded Dethatcher features a thermal cutoff. If the tines are obstructed by rocks or thick roots, the motor will shut down to prevent damage.

How do I fix a GVB1316 that hums but won't spin?

This usually indicates a seized bearing or a debris-clogged drum. Disconnect the power and manually rotate the tines to clear any wrapped grass or thatch.

Are replacement parts available for 24V-X2-DTS15?

Yes, you can source a 24V-X2-DTS15-DTNS replacement dethatcher blade if the original is damaged. Always ensure the battery is fully charged if the unit refuses to start.

Can a bad switch cause starting issues?

Absolutely, the start switch on many Sun Joe models is a common failure point. If you hear no sound at all when pressing the button, the switch may need professional replacement.

Should I use a heavy-duty cord?

Yes, using an undersized extension cord causes voltage drops that prevent the motor from starting. Always use a 12 or 14-gauge outdoor-rated cord for your dethatcher.