Sun Joe Cordless Lawn Mower Won’t Start

Troubleshooting the Issue

It is not uncommon for cordless lawn mowers to encounter starting issues over their lifetime. For Sun Joe cordless lawn mowers, understanding the nature of these issues and knowing how to tackle them can ensure your machine’s longevity and optimal performance.

1. Check Battery Power

If your Sun Joe cordless lawn mower won’t start, it could be due to an insufficient battery charge. These mowers rely on their batteries for power, and without a sufficient charge, the mower may not start at all. Always ensure that your battery is fully charged before using the mower. If the battery is old or damaged, it may need to be replaced.

A common safety feature is that if the batter gets too hot the mower will not start and the battery will not charge untill the battery has cooled below a certain temperature.

2. Examine The Safety Key

Sun Joe models come with a safety key that must be in place before the mower will start. If this key has been dislodged or lost, the mower won’t start. Check to ensure that the safety key is inserted correctly and that it’s not damaged.

3. Inspect the Blade

If the blade is clogged with grass or debris, it can prevent the mower from starting. Turn off the mower and disconnect the battery before inspecting the blade to ensure safe handling.

BEST SELLING SUN JOE CORDLESS LAWN MOWERS

SaleBestseller No. 1
Sun Joe MJ401C-PRO 14-Inch 28-Volt Cordless Push Lawn Mower, w/Rear Discharge Chute, Pro Version
Sun Joe MJ401C-PRO 14-Inch 28-Volt Cordless Push Lawn Mower, w/Rear Discharge Chute, Pro Version
ADJUSTABLE DECK: Tailor cutting height with 3-position manual height adjustment; ACCESSORIES: Detachable 10. 6-gal (40 l) grass catcher for easy disposal
$81.92 Amazon Prime
Bestseller No. 2
Sun Joe 24V-MJ14C 24-Volt IONMAX Cordless Push Lawn Mower Kit, 14-inch, W/ 4.0-Ah Battery + Charger
Sun Joe 24V-MJ14C 24-Volt IONMAX Cordless Push Lawn Mower Kit, 14-inch, W/ 4.0-Ah Battery + Charger
[STEEL BLADE]: 14” durable steel blade cuts a crisp path with every pass; [COLLECTION BAG]: Detachable, 10.6 gal grass bag for easy disposal of grass clippings
$194.00 Amazon Prime
Bestseller No. 3
Sun Joe 24V-X2-21LM 48-Volt 21-Inch 1100-Watt Max Brushless Cordless Lawn Mower, 7-Position Mowing Height Adjustment w/Rear Collection Bag
Sun Joe 24V-X2-21LM 48-Volt 21-Inch 1100-Watt Max Brushless Cordless Lawn Mower, 7-Position Mowing Height Adjustment w/Rear Collection Bag
[MOWING WIDTH]: 20-inch mowing width; [HEIGHT-ADJUSTMENT]: 7-position manual height-adjustment lever: 1.2-inch to 3.5-inches
$379.99 Amazon Prime
SaleBestseller No. 4
Sun Joe MJ401E-PRO Electric Lawn Mower w/Collapsible Handle, 3-Position Height Control, 10.6-Gallon Bag and Side Discharge Chute, 14'/13 Amp, Green
Sun Joe MJ401E-PRO Electric Lawn Mower w/Collapsible Handle, 3-Position Height Control, 10.6-Gallon Bag and Side Discharge Chute, 14″/13 Amp, Green
[POWERFUL]: 13-amp motor cuts a 14-inch wide path.No Load Speed (rpm) 3500; [ADJUSTABLE DECK]: Tailor cutting height with 3-position height control
$119.99
Bestseller No. 5
Sun Joe iON16LM 40-Volt 16-Inch Brushless Cordless Lawn Mower, Kit (w/4.0-Ah Battery + Quick Charger), ION16LM
Sun Joe iON16LM 40-Volt 16-Inch Brushless Cordless Lawn Mower, Kit (w/4.0-Ah Battery + Quick Charger), ION16LM
No pull cords, gas, oil, tune-ups, carbon emissions or tangled extension cords; 6-position height adjustment lever tailors grass cutting height from 1.18 to 3.15 Inch
$299.99 Amazon Prime

 

Maintenance for Longevity

Preventing your Sun Joe cordless lawn mower from experiencing starting issues involves regular maintenance and proper handling.

1. Regular Battery Care

Adequate battery care is crucial for the functionality of your cordless lawn mower. Always ensure the battery is fully charged before use and remove the battery when not in use.

2. Proper Storage

Storing your lawn mower properly when it’s not in use is vital for its longevity. It’s best to store it in a dry, cool place and cover it to protect it from dust and other potential damages.

3. Regular Cleaning

Regularly clean the mower, especially the blade, to avoid any clogs or build-ups that might prevent it from starting. Always ensure to disconnect the battery before cleaning for safety purposes.

Professional Help

If your Sun Joe cordless lawn mower won’t start even after troubleshooting and maintenance, you may need to consult a professional. They will be able to diagnose and repair more complex issues that may be beyond your capabilities.