Trash compactor starts but not compacting properly: Troubleshooting tips

A trash compactor is designed to provide a convenient way to handle household refuse, so when it isn’t compacting properly, it can throw a kink in your routine. But don’t worry – we’re here to help you fix the problem yourself so you can save time and money. Let’s get started!

If you find out that you need any replacement parts for your trash compactor while you’re troubleshooting, you can enter your model number at AppliancePartsPros.com to order them. Most orders arrive in just two business days, and we have thousands of free guides to show you how to install your new parts.

Important: The troubleshooting information provided in this article may not apply to your specific appliance model. While we strive to offer helpful advice for DIY appliance repairs, variations in models and configurations can lead to differences in troubleshooting steps, error codes and part replacements. For the most accurate guidance, we strongly recommend consulting the technical sheet for your specific appliance model.

What you need

• Multimeter
• Screwdrivers
• Cleaning supplies

Important: The specific tools required may vary depending on the model of your appliance and the type of fasteners used on it. Always consult the user manual or refer to any specific instructions provided by the manufacturer for the recommended tools for your appliance model.

Read more: How to replace a Whirlpool / KitchenAid / Maytag trash compactor on-off rotary switch kit 

Safety precautions

When working on any appliance, remember to keep safety first. Here are some tips to keep in mind:

• Always power off and unplug your appliance or switch off the circuit breaker before you attempt any maintenance or replacement work. This keeps you safe by eliminating any risk of electric shock.
• If the appliance has recently been used, give it plenty of time to cool down before working on it.
• Don’t test live voltage with a multimeter if you’re unfamiliar with how to prevent short-circuiting.
• Take your time while working to prevent accidents and personal injuries. Rushing is the enemy of precision.
• Work in a well-lit area so you can see and access appliance parts.
• Keep your workspace free of clutter and other obstacles. Keep children and pets away from the work area.
• Never work on internal parts with wet hands. Make sure the work area is completely dry.
• Check the user manual to see if there are specific installation or safety instructions related to your appliance or replacement part.
• Be gentle when handling or removing parts. Excessive force might damage the appliance or cause personal injury.
• Wear insulated work gloves to protect your hands from sharp metal parts and debris.
• When working with wires, avoid touching any exposed wires or terminals. If you need to touch a wire, use a non-conductive tool or wear insulating gloves to prevent electrical shock.
• Always take photos or make a note of wiring terminals or other connections before disconnecting them to make reassembly easier.

Read more: Trash compactor ram stuck? Top 5 reasons & fixes

How to troubleshoot your trash compactor

Follow these steps to fix a trash compactor that isn’t compacting trash properly.

Step 1: Check for blockages or overloading

1. Disconnect the compactor from the power supply.
2. Visually inspect the compaction chamber for any blockages or jammed items. Remove any objects or debris that may be preventing the ram from compacting properly.
3. Make sure the compaction chamber is clear and there’s nothing preventing the ram from moving. If there’s excess trash in the chamber, remove it so the ram has sufficient space to compress the waste.

Always refer to the manufacturer’s recommended load capacity and don’t overload the compactor.

Step 2: Examine the drive belt and chain

1. Find the drive belt that connects the motor to the compaction mechanism.
2. Inspect the belt for any signs of wear or cracks. If the belt is loose, adjust the tension according to the manufacturer’s instructions. Replace the drive belt if it’s damaged or broken.
3. Find the drive chain that connects the motor to the compaction mechanism.
4. Inspect the drive chain for any signs of wear, looseness, or damage. Adjust the chain tension if necessary by following the manufacturer’s recommendations. Replace the drive chain if it’s worn or broken.

Step 3: Inspect the motor pulley and drive pulley

1. Check the motor pulley and the drive pulley for any signs of looseness or misalignment. Tighten the set screws or bolts that hold the pulleys if they are loose.
2. Make sure the pulleys are properly aligned and not causing any belt slippage.
3. Check the motor for any obvious damage or blockages.

Step 4: Inspect the drive sprocket roll pin

Find the drive sprocket and check the condition of the roll pin that secures it to the drive shaft. If the roll pin is broken or bent, replace it so the compaction mechanism can work correctly.

Step 5: Check the drive shaft

• Inspect the drive shaft for any signs of damage, wear, or misalignment.
• Make sure the shaft isn’t bent or compromised, as this can affect the performance of the compaction mechanism.
• Replace the drive shaft if it’s faulty.

Step 6: Check the ram

• Inspect the ram (the compaction plate) for any signs of binding, wear, or other damage.
• Make sure the ram moves smoothly and isn’t blocked.
• Lubricate the ram if needed.
• Replace the ram if it’s damaged or worn.

Once you’ve completed troubleshooting, test the trash compactor to make sure it’s working correctly.

Read more: How to fix a noisy trash compactor in your kitchen  

Additional information

Thank you for reading! We hope this guide helped you get your trash compactor working again.

If you have any other appliance repair needs or projects, don’t hesitate to explore our other troubleshooting guides and videos.

If you need replacement parts or some extra help with ordering them, grab your model number and head over to AppliancePartsPros.com, where you can chat with a pro, read our DIY blog and more.

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