the Oracle® Troubleshooting

After I pull a shot, my filter cup is being pulled out of the portafilter when I unlock it from the group head.

If the fitler up seems to be stuck to the group head when the portafilter is unlocked, it may be a few things that are causing this.

My Oracle® is leaking

Leaking of the Oracle® can not only happen in several places but can have a few different causes and solutions.

  • Leaking around the Portafilter- Check the gasket around the group head. If it looks damaged, cracked or work out, you will need to replace it. You can find the replacement gasket here
    Instructions for replacing the gasket are as follows:
    1. Power off the Oracle® and unplug it from the outlet.
    2. Remove the water tank and drip tray from the machine.
    3. Using the Allen Key that accompanied your Oracle®, remove the screw from the center of the shower screen.
    4. Carefully remove the screw and the shower screen as well as the dispersion plate that is behind the shower screen.
    5. Remove the silicone seal.
    6. Insert the replacement seal, flat side first, so the ribbed side is facing down.
    7. Replace the dispersion plate then the shower screen, carefully using the screw to tighten back into place.
    8. Reassemble the Oracle®.

    • Water Tank Leak – Remove the water tank, set it in the sink and fill with water. Check beneath the tank and see if the leaking water is visible in the sink. If so, a replacement tank can be purchased from here.
      1. If water is not visible in the sink beneath the tank, then the leak is most likely internal. Please contact Consumer Support for service options via phone:(866) 273-8455, Mon.-Fri 6 AM-4 PM PST. Via the Web. Via e-mail at AskUs@BrevilleUSA.com.
      • Purging – The Oracle® will automatically purge water into your drip tray when heating up to temperature, during use, and when cooling down after it’s powered off. Be sure that the purging is not confused with leaking. Securely place the drip tray into your unit at all time and push it all the way back, even after you have powered off the Oracle®
      • Descale Port – If you have recently descaled your Oracle®, the descale valves may have been left slightly open. Lightly tighten the scrre to the descale access located on the front of your Oracle®, behind the steam wand.

My Oracle® is making a nonstop pumping/vibrating sound.

The vibrating/pumping noise the can occur with the Oracle® can be caused by a couple of things and they are absolutely common in all espresso machines.

  • Water – Using the right water is essential to achieving the best flavor from the coffee and ensuring your espresso machine operates well without interruption. We do not recommend the extremes, either highly filtered reverse osmosis/demineralized/zero filtered water or completely unfiltered water. You will need to drain your boilers (see instructions below) and try an alternative water type, ideally spring.
  • Draining the Oracle® Boilers

    • Mineral Build-Up – The sound may be occurring because of build-up within the machine. As a preventative maintenance, we recommend you descale your Oracle® every 4 – 6 months. You may need to descale more often if you use very hard water or if the unit gets used very frequently.
    • For descaling, you will need a store bought descale solution and a thing, long, flat-head screw driver (Do Not Use Vinegar). For descaling, follow these instructions:

    - Descaling the Oracle Version 1 (Batch code 1534 or lower)

    - Descaling the Oracle Version 2 (Batch code 1535 and above)

My Oracle® will not brew

There can be a few reasons for your Oracle® to stop brewing and here are a few solutions.

  • Coffee: Test your espresso machine by brewing with no coffee in the basket. If water does come out, the issue is the coffee is too fine and creating too much resistance. Try grinding coarser, higher number.
  • Buildup: If water does not come out even with no coffee in the basket, your shower screen might be clogged. Try removing the shower screen to thoroughly clean it. Please note that the brew head of your unit needs to be cleaned on a regular basis. At the brew head or shower head, where you attach the Portafilter (or handle) to make your Espresso, you will see a metal grid. Please carefully remove the screw in the middle of the grid (when the unit is cold and unplugged), and then remove the grid and the seal ring. Once they are off, you should rinse them well under running water. Then dry them well with a paper towel, removing all the grinds that may have accumulated behind the grid. (We suggest repeating this maintenance every few months. You may try running a couple of back to back cleaning cycles with your espresso cleaning tablets.

My Oracle® Will not heat up to temperature

There are a few steps that can be taken to troubleshoot the Oracle® and the temperature it’s heating up to.

  • Water type: Check the type of water you are using. Highly filtered water like Reverse osmosis, distilled, demineralized or Zero water remove all minerals and affect how the espresso machine operates. You may need to drain your boilers, follow link below. Then try mixing half and half tap and filtered water, or use spring water which is best.
    Draining boilers for the Oracle®
  • Steam lever: Your steam wand lever might be open. Make sure your steam wand lever on the right side is on standby. Should be pointing directly towards you.
  • Mineral Buildup; Your unit might need to be descaled. We recommend descaling your unit every 4-6 months as preventative maintenance. More often if heavily used or using hard tap water. See instructions below. You will need a store bought descale solution (no vinegar) and a long, thin flat head screw driver.
  • - Descaling the Oracle Version 1 (Batch code 1534 or lower)

    - Descaling the Oracle Version 2 (Batch code 1535 and above)

My Oracle® will not produce steam

When the steam wand of your Oracle® is not producing steam this is generally due to it being clogged. Clogging of the steam wand is something that can very easily happen and it doesn’t take much to clog it.

  1. Power your unit off.
  2. Unscrew the steam wand tip.
  3. Fill the frothing jug with approximately 8 oz. of hot water and a few drops of dish soap and mix.
  4. Place the wand tip and the steam wand into the jug and allow to soak for roughly 20 minutes.
  5. After soaking is complete, brush the inside of the tip with the dish soap and water, cleaning the gaskets.
  6. Use your cleaning tool with the needle to poke through holes at the end of the steam wand tip.
  7. Re-assemble the steam wand by screwing the tip back on and wipe down the want and tip with a clean damp towel.
  8. Turn your Oracle® on.
  9. Once the Oracle® reaches temperature, test your steam wand by adding cold water to your frothing jug, insert the steam wand and activate it.

My shot just doesn’t taste right and there is no crema.

This type of experience can be caused by several things.

  • Grind size, coffee bean quality and freshness, dose amount and tamp are the contributing factors to the flavor profile of your espresso.
  • Coffee beans are considered fresh for only a few weeks immediately after their ‘roasted on’ date printed on the bag. When only showing a “best by” date they may, in fact, be months old from roast even at the time of purchase. Beans are best stored in an air-tight container and kept in a cool dark place. Coffee beans should not be frozen or refrigerated.
  • If the water flow is too slow, the espresso will be very dark and bitter with a mottled and uneven crema on top.
  • If the water flow is too fast, the espresso will be under-extracted and the optimal flavor will not be developed. The espresso will be watery and lack the thick crema on top.
  • The water flow can be adjusted by changing the grind of the coffee. Grinder finer will slow down the water flow and grinding coarser will make it faster.
  • Your Oracle® will automatically dose and tamp for you.

Testing the Steam Wand froth: Water & Soap Test.

In order to test the frothing of your steam wand, there are a few simple steps.

  • Max Texture Test -
    1. Fill the milk jug about half way with water then add 1 drop of liquid soap.
    2. Set the temperature to the maximum temperature of 170°F
    3. Set the texture to the maximum value (or the most cappuccino).
    4. Insert the milk jug and engage the automatic steam wand until the cycle completes.
    5. The results should be a thick amount of foam on top of the water with very large bubbles.
  • Min Texture Test
    1. Fill the jug to about half way with water then add 1 drop of liquid soap.
    2. Set the temperature to the maximum temperature of 170°F.
    3. Set the texture to the minimum value (the least latté).
    4. Insert the milk jug and engage the automatic steam wand until the cycle completes.
    5. The results should be a very dense amount of bubbles, the layer not being very thick, consisting of small bubbles on top of the water.

Please note: The difference between the foam in the MAX test and the MIN test should be that the MAX texture should be approximately twice as much foam as the MIN texture to pass the Water & Soap Test

Results showing an issue: After performing both the MAX and MIN texture tests, and if both results produce very little foam on top of the water, there is nothing more that can be done by troubleshooting via email/chat/phone. The unit has an issue and needs to either be serviced, or the warranty status needs to be verified. If both MAX and MIN Texture tests results are very thing on the soap layer, then the unit has FAILED the Water & Soap Test.

The frothing isn’t working.

  • Steam Wand – There are two steps needed to ensure that the steam wand is not a factor in any frothing result issues. The steam wand needs to be purged before and after every use and should be cleaned after every use as well. Purging prior to texturing milk allows the water that is in the wand (the cooled steam, condensed back to water) to be purged out prior to frothing. Purging after use allows any milk residue that may have gotten into the steam wand tip to be pushed out. Cleaning the exterior makes sure that there is no residual build up on the tip or around it.
  • Non-Fat and Non-Dairy Milk – When frothing milk, the lower the fat content, the ‘bigger’ the foam. The results will be a lot of foam with larger bubbles in it. Non-fat milk is best at this. Due to a lack of fats, the liquid is able to create and maintain larger fluffier froth/bubbles. If the goal is ‘microfoam’, the smaller-bubbles and more silky textured foam then fat is needed. If the froth is not the consistency that is desired, using a higher fat content milk is suggested. This is also true with non-dairy types of milk. Some non-dairy milk types are best used with the manual frothing setting as the results can vary from product to product.
  • Low-Fat Milk – The higher the fat content of the milk, the higher the temperature will need to be in order to create the foam. Low-Fat or 2% Milk is a mixture of the silky fat enhanced milk and the bubblier non-fat milk. It will take longer to get the quality and volume that is intended with a higher fat content but the results will be closer to the silky texture.
  • Whole Milk – Whole Milk is about 4% fat content and will take a higher temperature and longer heating/frothing time in order to reach the resulting silky foam.
  • Freshness – Regardless of the milk chosen for frothing, it is very important that the milk be cold and fresh. The colder and fresher the milk, the better the froth/foam results will be.
  • Cold Frothing Jug – The standard for frothing jugs is actually the exact opposite of that for anything touching the espresso: colder is better. The higher the temperature of the milk, the more the fats break down so the colder the milk is when frothing begins, the longer the steam has to froth and texturize the milk. We do not recommend that you store the frothing jug on top of the espresso machine. If you are using a frothing jug at room temperature, the milk will froth just fine, however, having it chilled in the refrigerator or freezer extends the frothing time.

When the Steam Wand is not frothing though the milk is fresh and has a fat content that will support thick froth, please check the Water & Soap Test.

The grinder on my Oracle® is releasing too little to no coffee.

If the grinder of your Oracle® is not releasing enough coffee, there are a few steps that can be taken to ensure that it’s not clogged.

  1. Remove the hopper, ,upper burr and the tamper fan.
  2. Using a vacuum hose or the included cleaning brush, thoroughly clean the upper grinder area and the tamper fan area to remove residual beans, pieces and grounds. Removing the lower burr is not necessary.
  3. Align and lock the upper burr back into place, reattach and lock the bean hopper and reattach the tamper fan.
  4. Adjust the grind size dial to the coarsest setting and run the grinder empty of beans.
  5. To help resolve a clog, we recommend a handful of unseasoned uncooked white rice be placed ito the hopper and ground through the system on the coarsest setting.
  6. Follow the rice with a thorough cleaning then repeat this with coffee beans.
  7. The grinder should be working well now. begin grinding beans and, while grinder, adjust the grind size back it’s preferred setting.
  8. The following links will also provide this information:
  9. Cleaning the Grinder
    Cleaning the Grinder 2

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