Why My Beer Dispenser Has Insufficient Flow?

Aug 07, 2023, 14:43pm

The beer dispenser is an easy-to-use machine, but maintenance is essential. The beer circuit in the machine can be damaged and create certain failures, such as leaks or temperature failures. The beer dispenser has an electronic circuit to allow the operation of the various components such as the fan or the electronic card.

If the beer dispenser has low flow or pressure, then the keg and service tube will need to be checked as they may be responsible for the failure.

The perfect pour from a beer dispenser is a combination of several factors working harmoniously together. One of these factors is the flow rate, which, when regulated properly, ensures your beer is dispensed smoothly and with the right amount of foam. However, sometimes you might notice that your beer dispenser has insufficient flow, resulting in a trickle rather than a robust pour. This article will explore why this might be happening and how you can fix it.

Why My Beer Dispenser Has Insufficient Flow?

1. Clogged Dispensing Lines

One common reason for slow flow from a beer dispenser is clogged dispensing lines. This could be due to sediment build-up from the beer, especially if you frequently use unfiltered or homebrew beers.

Solution: Regular cleaning of the dispensing lines using a beer line cleaning kit can help prevent and resolve clogs. The frequency of cleaning will depend on your usage, but a good rule of thumb is to clean the lines every time you change the keg.

2. Incorrect Pressure Setting

The flow of beer is greatly affected by the pressure in the system. If the pressure is set too low, the beer will be dispensed slowly.

Solution: Check your pressure settings and adjust as necessary. The ideal pressure can vary depending on the type of beer and the length and diameter of your beer line, but generally, most beers are dispensed at around 12-14 PSI.

3. Faulty Regulator

The regulator controls the pressure of the CO2 gas that pushes the beer out of the keg. If the regulator is faulty, it might not maintain the right pressure, leading to insufficient flow.

Solution: If adjusting the pressure doesn’t resolve the issue, your regulator might be faulty and need replacement. This is a task best performed by a professional to ensure the system is properly balanced.

4. Damaged or Kinked Lines

If your beer lines are damaged, kinked, or pinched, the flow of beer can be restricted.

Solution: Inspect your beer lines for any visible damage or kinks. If you find any, you’ll need to replace the lines. Ensure the new lines are installed in a way that prevents them from being pinched or kinked.

Why My Beer Dispenser Has Insufficient Flow?

5. Temperature Issues

If your beer is too cold, it can become more viscous, slowing the flow. Conversely, if it’s too warm, it can foam excessively, which may also impede the flow.

Solution: Check the temperature settings of your beer dispenser and adjust if needed. The optimal temperature will depend on the type of beer, but typically, it should be between 38-44 degrees Fahrenheit (3-7 degrees Celsius).


A steady, robust flow is vital for the perfect pour from your beer dispenser. If your dispenser’s flow is insufficient, it could be due to a variety of issues, including clogged or damaged lines, incorrect pressure settings, a faulty regulator, or temperature problems. Understanding these potential issues and their solutions can help ensure your dispenser is always ready to deliver the perfect pint. As always, if you’re unsure about any steps or need more extensive repairs, it’s best to consult with a professional. Here’s to enjoying a smoothly dispensed, perfectly chilled beer!