Troubleshooting Prime machine symbol does not disappear from my Philips espresso machine If this message does not disappear there can be several causes and solutions. Follow the steps in the video to solve the problem. Start the process when the symbol appears on the display If the prime symbol appears on the display, there is air in the system. Perform the following steps to start the process: Check if there is water in the water tank Insert the hot water spout (machines with a milk carafe) Press the OK button to start the process. The machine will start dispensing some water Are there coffee beans under the water tank? Perform the following steps: Remove the water tank Clean the part below the water tank, remove any loose coffee beans Place back the water tank, switch the machine off and back on If the prime symbol appears, start the priming. Are you using an extra water filter, AquaClean or Brita filter? It can be that the extra water filter is not well prepared or clogged. Remove the extra placed water filter from the water tank. Hold the filter upside down in a bowl of water until all air bubbles have come out. Place back the filter in the water tank, and fill with water. Place back the water tank. Switch the machine off and back on. If the prime symbol appears, start the priming. If the symbol does not disappear, the filter might be clogged. Always replace the filter when the machine indicates this, or when you are using it longer then 2 months. Replace the filter if you are using it longer then 2 months or when d Play Pause You need Flash to see video. Click here to download it.