(GUIDE) How To Fix Low Pressure On Breville Espresso Machine?

Espresso lovers are often willing to invest in high-quality espresso machines to replicate the perfect cup of coffee at home. Breville is a well-known brand that offers a range of espresso machines loved by coffee enthusiasts around the world. However, sometimes these machines can experience low pressure, which can result in under-extracted and weak-tasting espresso. In this article, we will explore the causes of low pressure in Breville espresso machines and provide you with step-by-step instructions on how to fix this issue and ensure that your machine is operating at its optimal pressure.

In Short: How To Fix Low Pressure On Breville Espresso Machine

Here is a quick summary of the steps to fix low pressure on a Breville espresso machine:

  1. Ensure the machine is clean and free from any blockages.
  2. Check the water tank and make sure it is filled to the recommended level.
  3. Remove and clean the shower screen and dispersion block.
  4. Descale the machine to remove any mineral buildup.
  5. Adjust the pressure settings or calibrate the pressure gauge if necessary.
  6. Inspect the pump and check for any leaks or damages.
  7. If all else fails, consider seeking professional assistance from a Breville authorized service center.

Now let’s dive into each of these steps in more detail.

Key Takeaways

  • Low pressure in a Breville espresso machine can result in under-extracted espresso and weak-tasting coffee.
  • Common causes of low pressure include clogged filters, low water levels, mineral buildup, and faulty pump or pressure gauge.
  • Troubleshooting steps include cleaning the machine, checking and adjusting water levels, descaling, and inspecting the pump.
  • Regular cleaning and maintenance is crucial for preventing low pressure issues in the future.
  • If all troubleshooting steps fail, professional repair might be necessary.

Understanding The Causes Of Low Pressure In Breville Espresso Machines

Low pressure in a Breville espresso machine can be caused by several factors. Understanding these causes is essential in diagnosing and resolving the issue.

  1. Clogged Filters: Over time, the filters in your espresso machine can become clogged with coffee grounds or mineral deposits. This can restrict water flow and result in low pressure.

  2. Low Water Levels: If the water tank in your machine is not filled to the recommended level, it can cause low pressure. This is because the pump needs an adequate water supply to generate the necessary pressure for a good extraction.

  3. Mineral Buildup: Mineral deposits from hard water can accumulate inside the machine, particularly in the internal components such as the boiler and tubing. This buildup can impede water flow and reduce pressure.

  4. Faulty Pump: The pump is responsible for creating the pressure needed to extract the espresso. If the pump is damaged or worn out, it may not be able to generate sufficient pressure, resulting in low-pressure issues.

  5. Pressure Gauge Calibration: The pressure gauge on your Breville espresso machine measures the pressure inside the machine. If it is not calibrated correctly, it may give inaccurate readings, leading to low pressure.

Troubleshooting Tips For Improving Pressure In Your Breville Espresso Machine

Before diving into any repairs or adjustments, it’s essential to begin with some basic troubleshooting steps to improve the pressure in your Breville espresso machine.

  1. Clean the Machine: Start by thoroughly cleaning your machine to remove any coffee grounds or mineral deposits that may be causing the low pressure. Refer to the manufacturer’s instructions for specific cleaning recommendations.

  2. Check Water Levels: Ensure that the water tank in your machine is filled to the recommended level. If the water level is too low, the pump may not have enough water to generate proper pressure.

  3. Check for Blockages: Inspect the filters, coffee baskets, and shower screen for any signs of clogging. Clean or replace these parts as necessary. A clogged filter can restrict water flow and lead to low pressure.

  4. Descale the Machine: If mineral buildup is suspected to be causing the low pressure, it is recommended to descale the machine. Descaling removes the accumulated minerals and improves water flow.

  5. Prime the Pump: If the pump has air trapped inside it, it may not be able to generate sufficient pressure. Priming the pump can help remove any trapped air. Refer to the manufacturer’s instructions on how to prime the pump properly.

  6. Check Pressure Gauge: Verify if the pressure gauge is calibrated correctly. Use a separate pressure gauge or consult the manufacturer’s instructions to compare readings. If the gauge is not accurate, you may need to calibrate or replace it.

  7. Check for Leaks: Inspect the machine for any visible leaks. Leaks can cause a drop in pressure and affect the overall performance of the espresso machine. Carefully check the tubing, connections, and seals for any signs of leakage.

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Adjusting The Pump And Water Flow To Increase Pressure In Your Breville Espresso Machine

If the basic troubleshooting steps fail to improve the pressure in your Breville espresso machine, you may need to adjust the pump or water flow settings. Here’s how:

  1. Adjust the Pump Pressure: Some Breville espresso machines allow you to adjust the pump pressure manually. Refer to your machine’s user manual for specific instructions on how to adjust the pump pressure settings. Increase the pressure gradually and monitor the results until you achieve the desired pressure for optimal extraction.

  2. Adjust Water Flow: Some models also have settings to control the water flow rate. Experiment with different water flow settings to find the sweet spot where the pressure is optimal. Again, refer to your machine’s user manual for instructions on adjusting the water flow.

  3. Ensure Consistent Water Temperature: Inconsistent water temperature can affect pressure. Check if your machine has temperature control settings and ensure they are set appropriately. Consistently hot water is essential for maintaining adequate pressure during extraction.

Cleaning And Maintaining Your Breville Espresso Machine For Optimal Pressure

Regular cleaning and maintenance are crucial for preventing low-pressure issues in your Breville espresso machine. Here are some maintenance tips to keep your machine running smoothly:

  1. Clean the Machine Regularly: Clean your machine after every use to prevent the accumulation of coffee grounds and oils. Follow the manufacturer’s instructions to dismantle and clean the removable parts. Pay special attention to the shower screen, dispersion block, and filters.

  2. Descale the Machine: Descaling should be performed regularly, especially if you live in an area with hard water. Follow the manufacturer’s instructions and use a descaling solution recommended for your Breville espresso machine. Descaling helps remove mineral buildup and ensures optimal water flow and pressure.

  3. Replace Worn-out Parts: Over time, certain parts of your espresso machine, such as the seals and gaskets, may wear out. Inspect these parts regularly and replace them when necessary. Worn-out seals can lead to leaks and decrease pressure.

  4. Use Filtered Water: Using filtered water can help prevent mineral buildup and extend the lifespan of your machine. If you have water with high mineral content, consider using a water filter or a water softener to reduce mineral deposits.

  5. Professional Maintenance: Even with regular cleaning and maintenance, there may come a time when professional maintenance is required. If you are experiencing persistent low pressure or suspect a mechanical issue, consider seeking assistance from a Breville authorized service center.

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How To Determine If A Professional Repair Is Needed For Your Low Pressure Breville Espresso Machine

While many low-pressure issues can be resolved through cleaning, maintenance, and adjustments, there are instances where professional repair may be necessary. Here are some signs that indicate your machine may need professional attention:

  1. Persistent Low Pressure: If you have tried all the above troubleshooting steps and the pressure issue persists, it may suggest a more complex problem that requires professional diagnosis and repair.

  2. Pump or Pressure Gauge Malfunction: If you suspect that the pump or pressure gauge is not functioning correctly, it’s best to have them inspected and repaired by a professional technician. These parts are crucial for maintaining proper pressure during extraction.

  3. Leaks or Water Damage: If your machine is leaking or you notice any signs of water damage, it’s important to have it repaired immediately. Leaks can lead to decreased pressure and further damage to the machine if not addressed promptly.

  4. Unusual Noises or Vibrations: Unusual noises, vibrations, or any other irregularities during operation may indicate mechanical issues. Continuing to use the machine in such conditions can worsen the problem, so it’s best to have it inspected by a professional.

When in doubt, it is always a good idea to consult the manufacturer’s customer support or contact a Breville authorized service center for guidance and assistance.

Tips For Preventing Low Pressure In Your Breville Espresso Machine In The Future

Prevention is always better than cure, and this applies to maintaining the optimal pressure in your Breville espresso machine. Here are some preventative measures you can take to avoid low-pressure issues in the future:

  1. Regular Cleaning: Clean your machine regularly to prevent clogs and mineral buildup. Make it a habit to clean the removable parts after every use and perform a thorough descaling at least once every few months.

  2. Use Quality Coffee and Grind Size: Use freshly roasted and high-quality coffee beans. Additionally, ensure that you are using the correct grind size for your espresso machine. Using a grind size that is too fine can lead to clogs and low pressure.

  3. Use Filtered Water: As mentioned earlier, using filtered water can help minimize mineral buildup. If you have hard water, consider using a water filter or a water softener to reduce mineral deposits.

  4. Follow Manufacturer’s Recommendations: Always refer to your machine’s user manual for specific instructions on cleaning, maintenance, and descaling. Following the manufacturer’s recommendations will help prolong the life of your machine and maintain optimal pressure.

  5. Regularly Inspect Seals and Gaskets: Inspect the seals and gaskets regularly and replace them when needed. Worn-out seals can lead to leaks and decreased pressure.

  6. Keep the Machine in a Suitable Environment: Ensure that your espresso machine is placed in a clean and dry environment. Avoid placing it near sources of heat or humidity, as these can affect its performance.

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By following these preventative measures, you can minimize the chances of experiencing low pressure issues in your Breville espresso machine and enjoy consistently great-tasting coffee.


Low pressure in a Breville espresso machine can be frustrating, but with the right troubleshooting steps and maintenance routine, it can be resolved. From cleaning and descaling to adjusting the pump and water flow, there are several DIY methods to improve pressure. However, if the issue persists or if you notice any major mechanical problems, it’s essential to seek professional assistance. By following the preventative measures mentioned, you can minimize the chances of low pressure and ensure your Breville espresso machine consistently delivers delicious shots of espresso.


What Are The Common Causes Of Low Pressure On A Breville Espresso Machine?

The common causes of low pressure on Breville espresso machines include clogged filters, water deposits, pump malfunction, and worn-out gaskets.

How Do I Know If My Breville Espresso Machine Has Low Pressure?

You can easily detect low pressure on your Breville espresso machine by observing the quality of espresso shots. If your espresso is lighter in color and less crema is visible, this may be an indication of low pressure.

How Can I Troubleshoot Low Pressure On My Breville Espresso Machine?

You can troubleshoot low pressure by descaling the machine, cleaning the filters, or adjusting the grind size of the coffee beans. Additionally, you can check if the pump motor is functioning properly and replace any worn-out gaskets.

What Is The Process For Descaling My Breville Espresso Machine?

To descale your Breville espresso machine, mix a 50/50 solution of water and white vinegar and run the machine through a brew cycle. Afterward, run several cycles of plain water to remove any residual vinegar taste. Refer to the machine’s instruction manual for more detailed instructions.

Should I Call A Professional To Fix My Breville Espresso Machine’s Low Pressure?

If the above troubleshooting methods do not work, or if your machine is still under warranty, it’s best to contact Breville’s customer support for assistance. However, if the machine is no longer under warranty, it may be more cost-effective to purchase a new machine instead of paying for repairs.

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