Strong burning smell from the unit during use, even if it continues to run.

Safety first: Unplug the Philips carpet cleaner immediately. Do not continue to operate with a burning smell.

• Check brush and belt: Remove the brush cover and inspect the belt for melting or burning. Clear any jammed debris from the brush roll and replace a damaged belt.
• Inspect for blockages: Check suction paths, hoses, and filters for clogs that could overload the motor.
• Assess motor condition: If the smell is electrical (sharp, acrid) and comes from the motor area, the motor windings may be overheating. Replace the motor assembly.
• Do not ignore: Continued use with a burning smell is a fire risk. Resolve the cause before using the machine again.