# Troubleshooting

  • Too much foam. Foaming might be tricky but there are a few rules of thumb that will greatly increase the success rate:
    1. Make sure beverage is cold, 4C or lower
    2. Make sure carbonation is finished. We recommend using force carbonation (sit and forget) at stable pressure/temperature for 7 days or more. If you quick carb or use a carb stone, shake the keg, roll the keg, etc; from experience, we recommend letting the beer rest 4-7 days (at cold temperature) before filling. This is for the CO2 pressure to get completely in equilibrium with beverage pressure.
    3. DON'T SHAKE THE KEG during its stabilizing period.
    4. NEVER DECREASE KEG PRESSURE after carbonation is done / before filling. It might cause massive foam since CO2 bubbles will start to migrate out of the beverage. If pressure is decreased then repressurize and wait another day for it to stabilize again.
    5. Rule of thumb, if carbonation level is below 3 volumes then normal fridge temperature is normally cold enough for filling. If more than 3 volumes you might have to cool below 4C and maybe close to zero degrees to have a successful fill session. Always disconnect CO2 if you cool below 4C, otherwise, you will increase carbonation as the temperature drops. Disconnect CO2 -> cool down -> wait one day -> reconnect CO2 (remember, keg pressure is lower because the beverage is colder) -> start filling.
    6. Use the thinner tubing, it will have better foam reducing properties than the 1/4" OD beverage tubing.

      Together with carbonation level, temperature is the most important factors that affects foaming.


  • Too little foam. Cap on foam is desired to avoid oxygen contact with the beverage:

    1. Increase keg temperature. For example, take it out of the fridge and let it heat up before continuing.
    2. Increase keg pressure to increase flow. It will produce more foam but it's not as efficient as increasing the temperature.
    3. Get the flow control kit, it will get you more flow (and foam) with it, but also the possibility to reduce flow/foam if there's too much foam.

    People carbonated differently and it affects the foam cap. In general, we recommend always filling cold beer but it also might be that warmer than 4C (5-8C) will work best for your beverage type and carbonation level. Do your experiments over time. Start cold and let it heat up until you get that perfect foam cap, eventually go colder if there is too much foam at 4C


  • Beverage valve does not open on first-time use, beverage valve does not fully open / low flow and/or foaming:
    1. The valve tube has stuck in position. Don't worry it's normal and it's easily solved by increasing beverage pressure to assist it to open.
    2. Start a fill. Wait until LED is red. Red LED means that the beverage valve has an opening signal.
    3. Increase keg pressure slowly (max 20 psi / 1.4 bar) and the beverage valve will open. Listen for a loud click when it latches open. Lower keg pressure back to normal.
      If the valve still did not open:
    4. Try to pinch the tube in the top of the filler to create a counter pressure in the tube going through the valve.
    5. On all the following fillings the valve shall open fully without any assistance or delay. If it still troubles it might be too much stretch in the tube which pulls the valve plunger sideways and prevents it from opening. It can be solved by removing the strecth or simply reposition the tube in the valve groove. Contact us for assistanse.



  • Beverage valve does not close / fill head dripping:
    1. This happens if beverage pressure is too high. Lower beverage pressure to 20 psi / 1.4 bar or below.


  • Inconsistent fill level in Sensor Mode:
    1. Lower CO2 purge pressure. Max 3 psi / 0.2 bar. Slow purge without turbulence gives the best purge and saves you CO2. Too high purge pressure will disturb the level sensor and that will cause inconsistent fill level.
    2. Calibrate fill level with the actual beverage and actual flow rate.
    3. If the beverage is highly carbonated and has a large bubble size >1mm (water, soda, cider), the sensor mode will be more unstable as the large rising bubbles disturb the pressure reading.

      Fill level accuracy with an ideal beverage and ideal flow rate is fractions of a millimeter. If the level measurement is affected by other factors the fill level measurement might be affected and the actual fill level will become inconsistent. Such external factors can be (large) carbonation bubbles, flow from the beverage tube affecting the pressure reading done by the CO2 tube, too high CO2 purge pressure, etc.

      After each purge and before the beverage valve opens the filler does a reference pressure reading during the 1.5s delay between the two operations. You might want to check that droplets from the beverage fill tube don't form on the tip of the CO2 tube after purging. Then the reference pressure reading is affected and the fill level will end up wrong. There's a simple solution, just make sure the tip of the CO2tube is at the same level or higher than the tip of the beverage tube so droplets from the beverage tube will fall down and not stick to the CO2 tube.

      Another test to do is to put a glass of water under the fill head while the CO2 is pressurized. Check for bubbles coming out of the CO2 tube. If it does, verify that purge pressure is below 3psi. If not lower the purge pressure and check again. If purge pressure is lower than 3 psi and bubbles comes out, please contact us, you might have a defect purge valve.


  • Inconsistent fill level in Timer Mode:
    1. Check keg pressure / CO2 regulator. Stable keg pressure is the key to having a consistent fill level in Timer Mode. If you adjust flow or keg pressure then reprogram fill level. Make sure the beverage line is primed with liquid and that the can/bottle is empty before programming.


  • Sensor mode fill level is not stored:
    1. The sensor needs to register a liquid heigh of 25mm or more to store the fill level.