Before you begin
A treadmill has electrical parts and a moving belt, so safety comes first.
- Switch it off and unplug it before any cleaning beyond a quick surface wipe. Pull the safety key as well.
- Let it cool after use, since the motor area can be warm.
- Check the owner’s manual. It will tell you which cleaners are acceptable, whether the deck is waxed or needs lubricant, and whether opening the motor hood is permitted. Opening it can matter for the warranty on some machines.
- Keep children and pets away. A treadmill belt can start unexpectedly if the machine is plugged in, and small hands or paws can be pulled in. Store sprays and cloths out of reach.
- Never spray liquid directly on the machine. Moisture in the console or motor can cause damage or shorts.
What you need
- Microfiber cloths
- Mild dish soap and water, or a cleaner your manufacturer approves
- Vacuum with a crevice and brush attachment
- Soft brush
- Clean towel
- A screwdriver or hex key for the motor hood, if allowed
- Treadmill-specific lubricant, only if your manual calls for it
Step-by-step
Console and screen
Dampen a microfiber cloth with a little water and wipe the console, buttons, and screen. For a touchscreen, use a screen-safe method such as a slightly damp microfiber cloth. Avoid alcohol or strong sprays unless the manufacturer says they are fine.
Handrails, frame, and side rails
Mix a small amount of mild soap in water, wring out a cloth until it is only damp, and wipe the handrails, frame, and side rails. Sweat contains salt and can be corrosive over time, so wiping handles regularly is worth it. Dry everything with a clean cloth.
The belt surface
Wipe the top of the belt with a damp cloth. Skip harsh chemical sprays or abrasive pads, which can wear the surface or leave a slippery residue. Go in short sections and rotate the belt by hand while the machine is off, or follow the manual if it recommends running it slowly.
Under the belt
Dust and lint can collect beneath the belt on the deck. The manufacturer may recommend slipping a clean towel under the belt and gently sliding it through to wipe the deck. Some guides suggest loosening the rear roller to make room, but that affects belt alignment and tension, so do it only if your manual describes it. Do not touch the deck with water or cleaners unless allowed. After cleaning under the belt, some models need the deck lubricated, and the manual will specify the product.
Motor compartment
Dust, hair, and carpet fibers can build up around the motor and electronics. If your manual allows removing the motor hood:
- Confirm the treadmill is unplugged.
- Remove the screws and lift off the hood carefully.
- Use a vacuum with a soft brush or hose to remove dust around the motor and circuit board, without touching wires or components.
- Replace the hood and tighten the screws.
Many people do this a few times per year or when the machine is used heavily or in a room with pets. If you are not comfortable, ask the manufacturer or a technician.
Floor and mat
Vacuum the floor around and beneath the treadmill, since dust there can be pulled into the motor vents. A treadmill mat catches some of this and protects the floor. Mats can be wiped or vacuumed as well.
How often to clean
- After each workout: Wipe the console, handrails, and belt edges if they are sweaty.
- Weekly: Vacuum around the base and wipe the frame.
- Every few months: Check under the belt, and vacuum the motor area if the manual allows.
Heavier use, pets, or a dusty room mean cleaning a bit more often.
Can I use WD-40 on a treadmill?
Most manufacturers say not to. General-purpose sprays can attract dust, break down some belt materials, or leave residue that makes the belt slip. Treadmills that need lubrication typically call for a silicone-based lubricant made for treadmills, applied under the belt in the way the manual describes. Follow your manual, and if you are unsure, ask the manufacturer.
Mistakes to avoid
- Spraying cleaner onto the console or motor
- Cleaning while plugged in
- Using bleach, ammonia, or abrasive scrubbers on the belt or console
- Mixing cleaning products
- Skipping the manual
- Over-lubricating the deck
How long does a treadmill last?
It depends heavily on the machine, how much it is used, and how well it is maintained. Regular cleaning and following the manufacturer’s maintenance schedule are generally thought to help extend life, but there is no single number that fits every model. Check the warranty and manual for guidance.
When to call the manufacturer
If the belt slips or sticks, you hear grinding or squealing, you smell burning, or the console behaves oddly, stop using it and contact the manufacturer or a qualified technician instead of trying to fix it yourself.