Fixing Common Power Tool Problems: Simple Solutions

Before you send a tool for service or buy a replacement, check these common issues. Many problems have simple solutions that don't require professional repair.

Tool Won't Start

Work through these checks:

• Battery: Is it charged? Try a known-good battery
• Connection: Clean battery contacts with a dry cloth
• Trigger: Check for stuck debris or damage
• Thermal protection: Let the tool cool if it's been running hard
• Brushes: On brushed motors, worn brushes cause starting issues

Reduced Power

Gradual power loss often indicates:

• Worn carbon brushes (brushed motors)
• Battery degradation - test with a new battery
• Blocked air vents restricting cooling
• Internal dust buildup
• Dull accessories (blades, bits) making the motor work harder

Excessive Vibration

Unusual vibration suggests:

• Damaged or unbalanced accessory (blade, disc)
• Loose components - check all fasteners
• Worn bearings - usually requires service
• Bent shaft - from drops or impacts

Overheating

Tools running hot need attention:

• Clear blocked ventilation slots
• Reduce load - take lighter cuts
• Check for internal dust accumulation
• Ensure battery is correct specification
• Allow cooling periods during heavy use

Battery Issues

Common battery problems:

• Won't charge: Clean contacts, try different charger
• Short runtime: Cell degradation, may need replacement
• Drops out suddenly: Cell imbalance or protection triggering

When to Seek Service

Some repairs need professionals:

• Electrical faults beyond brushes
• Bearing replacement
• Gearbox problems
• Electronic control failures
• Anything involving disassembly you're not confident with

Authorised service centres maintain warranties. DIY repairs on tools under warranty usually void coverage.