
Bread machine pans are a convenient way to make bread at home, but they can sometimes leak. This can be due to a faulty bread pan shaft seal, which can be replaced at home. Various replacement parts are available online, and some people have found success using Viton oil seals. The process involves removing the spindle, washers, impeller, and circlip, before fitting the new seal and reassembling the parts. It is important to test the bread pan for any leaks after repairing it.
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What You'll Learn

Bread pan seal replacement parts
If you're looking to replace the seal on your bread pan, it's likely that your current one is damaged or leaking. This is a common issue with bread pans and can often be fixed by replacing the seal or gasket.
There are several options available for replacement parts. Firstly, it's important to identify the make and model of your bread pan or bread maker. This is crucial as different models will have different-sized parts. For example, the Kenwood BM450 bread maker has a spindle diameter of 8mm, so the inner diameter of the replacement seal should also be 8mm. In this case, the owner opted for a Viton oil seal purchased from AliExpress. The Breadman Bread Machine has a specific replacement part, the Breadman Bread Machine Pan SEAL Gasket Part TR444, available on Amazon. Bread pan seals are also available on eBay, with one user reporting success in purchasing a seal for their Breadman machine from a seller on this platform.
When replacing the seal, it's important to follow the correct procedure. This may vary depending on the make and model of your bread pan, but generally, it involves removing the old seal and any associated parts, cleaning the area, and installing the new seal. In the case of the Kenwood BM450, the replacement process involves pushing the spindle from the pan's upper side, removing the brass washers, impeller, and circlip, and then extracting the old seal. A new seal can then be pushed into the pan shaft hole from above, and the washers, impeller, and new circlip can be fitted. It's important to note that no glue should be used in this process.
It's also a good idea to test the new seal for any leaks. This can be done by filling the pan with water, placing paper underneath, and checking for any leaks after an hour. The paddle can also be turned manually to further test for leaks.
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How to fix a leaking bread pan
A leaking bread pan can be frustrating, but there are ways to fix it. Here is a step-by-step guide on how to address this issue:
Identify the Source of the Leak
The first step in fixing a leaking bread pan is to identify where the leak is coming from. Unplug the bread machine and remove any dough or ingredients. This step is crucial as it allows for a thorough inspection of the pan.
Clean and Dry the Pan
Once the source of the leak is identified, it's important to clean and dry the pan thoroughly. Use a damp cloth to wipe down the surface, removing any dirt, dough residue, or debris.
Apply a Waterproof Sealant
After the pan is clean and dry, it's time to apply a waterproof sealant. Choose a sealant designed specifically for metal pans, such as silicone or epoxy. Using a brush or roller, apply a thin, even layer of the sealant over the entire surface, paying close attention to any cracks or crevices. Allow the sealant to dry completely before moving on to the next step.
Test the Pan
Before using the bread pan again, it's important to test it to ensure it's reliable and leak-free. Fill the pan with water and place it on the stove at the lowest heat setting. Monitor the water level and temperature to ensure it's not boiling away too quickly. If the pan still leaks, you may need to reapply the sealant or consider a replacement pan.
Replace the Pan if Necessary
If your bread pan continues to leak despite your efforts, it may be time to replace it. Choose a replacement pan made from quality materials with a good warranty. Measure the old pan to ensure the new one fits correctly.
Additional Tips
In some cases, the leak may be due to a missing washer or a faulty seal. Before attempting any repairs, it's worth consulting the manufacturer's instructions or seeking expert advice to ensure you're taking the appropriate steps for your specific bread pan model.
By following these steps, you can effectively fix a leaking bread pan and continue enjoying homemade bread without the mess!
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Bread pan shaft seal lubrication
The bread pan seal is an essential component of a bread maker, as it keeps the dough inside the bread pan and prevents oil from the axle from contaminating the bread. Over time, the seal can degrade and leak, requiring replacement or lubrication.
To lubricate the bread pan shaft seal, it is important to first identify the type of bread maker and its specific design. The process may vary slightly depending on the model. For example, the Kenwood BM450 bread maker requires a specific set of steps to access and lubricate the seal.
Firstly, it is necessary to remove the bread pan and extract the spindle by pushing it from the pan's upper side. Set the spindle aside safely, along with the accompanying brass washers, impeller, and circlip. Next, use a screwdriver or a bent-tip tool to carefully remove the old rubber seal, ensuring that all rubber residue is cleared from the cavity. Clean the spindle and the cavity thoroughly before proceeding.
Once the area is prepared, it is important to determine the correct size of the oil seal required. Measure the spindle diameter with a caliper to ensure the inner diameter of the seal matches. For the Kenwood BM450, the spindle diameter is 8mm, so the inner diameter of the seal should be the same. The outer diameter and width of the seal can vary, but for this model, an outer diameter of 17mm and a width of 7mm are suitable.
After acquiring the correctly sized oil seal, it is time to install it. Push the new oil seal into the pan shaft hole from above, using a PVC pipe with a diameter of less than 8mm to firmly tap it into place. Ensure that the oil seal is securely seated without using any glue. Refer to the bread maker's assembly drawing to re-install the brass washers, impeller, and new stainless-steel circlip.
Finally, conduct a leakage test by filling the bread pan with water, placing it on paper, and observing for any leaks over the next hour. Manually turn the paddle for a while and re-check for water leakage.
It is worth noting that some sources suggest using an edible oil with a high smoke point, such as safflower oil, as an alternative lubrication method. However, the general process outlined above provides a comprehensive guide to lubricating and maintaining the bread pan shaft seal.
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Bread pan seal maintenance
Maintaining the bread pan seal of your bread maker is important to ensure it has a long life and continues to produce great bread. Here are some tips for bread pan seal maintenance:
Firstly, it is important to clean your bread pan properly. Avoid cleaning the pan while it is still hot, as this can cause issues with the shaft seals due to the sudden temperature change. Instead, wait for the pan to cool down before cleaning the inside.
If your bread is not baking properly, there are a few things you can check. Firstly, ensure that the heating element, power relay, and thermal fuse are all functioning correctly. A thermal fuse is designed to interrupt power to the heating element if the unit reaches an unsafe temperature, so this may need to be replaced if it has been tripped.
If you notice grease stains on your bread, this could be due to a leaking seal around the drive shaft of your bread pan. In this case, it is recommended to buy a replacement pan. When applying oil to the bottom of the pan or the drive shaft, always use a very small amount. Excess oil can leak into other parts of the machine and cause issues with the drive belt.
If you need to replace the bread pan seal, you can follow these steps:
- Remove the spindle by pushing it from the pan's upper side.
- Set the spindle aside safely, along with the two brass washers, impeller, and circlip.
- Remove the old seal with a screwdriver or a bent tip tool.
- Clean the spindle thoroughly.
- Fit a new Viton oil seal onto the spindle. The inner diameter of the seal should match the diameter of the spindle, which is typically 8mm.
- Push the spindle back into the pan shaft hole from above. Use a PVC pipe with a diameter of less than 8mm to tap it firmly inside with a mallet.
- Refer to the assembly drawing and fit the two brass washers, impeller, and new stainless steel circlip.
- Fix the bread maker paddle onto the spindle.
- Fill the pan with water and place some paper underneath. Leave it for an hour and check for any leaks.
- Manually turn the paddle and continue to check for leaks.
By following these maintenance tips and replacement procedures, you can ensure that your bread pan seal remains in good condition and your bread maker continues to function properly.
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Bread pan seal repair or replacement
First, it is important to identify the issue. If your bread machine is leaking, it is likely that the bread pan seal needs to be repaired or replaced. Start by removing the bread pan from the machine and inspecting it for any signs of damage or wear. If the seal is damaged or worn, it will need to be replaced.
Next, you will need to gather the necessary tools and materials. These include a screwdriver or a bent-tip tool, a replacement seal (ensure you have the correct size), a PVC pipe with a diameter of less than 8mm, a mallet, two brass washers, an impeller, and a new stainless steel circlip. It is also recommended to have some water and paper handy for testing the seal after replacement.
Now, let's begin the repair process:
- Remove the spindle by pushing it from the pan's upper side. It should come off easily.
- Set the spindle aside safely, along with the two brass washers, impeller, and circlip.
- Carefully extract the old seal with a screwdriver or bent-tip tool, ensuring you also remove a metal clip and any other components in the cavity.
- Clean the spindle thoroughly to prepare for the new seal.
- Fit the new Viton oil seal onto the clean spindle. The oil seal should have an inner diameter of 8mm, an outer diameter of 17mm, and a width of 7mm.
- Push the new seal into the pan shaft hole from the upper side, using the PVC pipe and mallet to firmly secure it in place. Do not use any glue.
- Refer to the assembly drawing and fit the two brass washers, impeller, and new stainless steel circlip back into place.
- Attach the bread maker paddle onto the spindle.
- Fill the bread pan with water and place some paper underneath it.
- Allow it to rest for an hour and then check for any leaks by examining the paper for water.
- Manually turn the paddle for a while and continue to check for any signs of water leakage.
If no leaks are detected, your bread pan seal has been successfully repaired or replaced! This process can be applied to other bread machine models, but ensure you source the correct seal size and any necessary components.
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Frequently asked questions
One option is to use a Viton oil seal as a replacement for the bread pan shaft seal. Another option is to use an ordinary rubber oil seal of 17 mm outer diameter.
First, remove the spindle, brass washers, impeller, and circlip. Then, remove the old seal and any remaining rubber from the cavity. Clean the spindle thoroughly and fit the new seal onto it. Refer to the assembly drawing and fit the brass washers, impeller, and new circlip. Fix the bread maker paddle onto the spindle. Fill with water and place some paper under the pan. Keep for an hour and check for leakage. Manually turn the paddle and test for water leakage again.
Bread pan seals are available on Amazon and eBay. They are also available on AliExpress.




















