Ariston boiler Error 108

What is the Ariston 108 error fault affecting your boiler?

If you have an Ariston boiler in your home, you probably enjoy an efficient, safe, and eco-friendly heating system. However, like any device, it may experience some faults or malfunctions that are reflected on the screen through a specific error code. One of the most frequent ones is error code 108, which indicates that the water pressure in the heating circuit is too low and that's why the boiler is locked. In this article, we will explain what this Ariston boiler error means, what its possible causes are, and how to solve it easily and quickly.

Water pressure is an important factor for the correct operation of the boiler, as it allows the water to circulate through the radiators and heat properly. The optimal pressure for a domestic boiler is usually between 1 and 2 bars, and it can be checked on the boiler's pressure gauge. If the pressure is less than 1 bar, the boiler detects a problem and locks up for safety, displaying the error code 108 on the screen.

The possible causes of error code 108 in an Ariston boiler could be the following:

• Lack of water in the heating circuit: this is the most common cause and it is due to the water being evaporated or lost due to a leak or radiator bleed. In this case, it is necessary to refill the circuit with water until reaching the appropriate pressure.
• Valve or tap closed: it may happen that the valve or tap allowing water into the circuit is closed or partially closed, preventing the water from flowing correctly. In this case, it is necessary to fully open the valve or tap to restore pressure.
• Temperature changes: abrupt temperature changes can affect water pressure, as water expands or contracts according to its temperature. In this case, the pressure may temporarily vary and normalize after a while.

How to fix the Ariston boiler 108 error?

To resolve the error code 108 on an Ariston boiler, you should follow these steps:

1. Restart the boiler: The first thing you should do is turn off and turn on the boiler to see if the error disappears. Sometimes it is a one-time fault that is resolved with a simple restart. By doing this, the pressure gauge resets and this may fix the problem.
2. Check the water pressure: The second thing you should do is look at the boiler's pressure gauge and see if the water pressure is between 1 and 2 bars. If it's below that, you need to refill the circuit with water until you reach that pressure.
3. Refill the circuit with water: To refill the circuit with water you must locate the valves or taps that are under the boiler and open them slowly. You need to do this until the pressure gauge indicates the correct pressure. Then you should close the valves or taps and check for leaks.
4. Repeat all the above steps if the problem persists: If after refilling the circuit with water the error code 108 still appears, you can repeat all the previous steps until it is resolved. It may be necessary to bleed the radiators to remove any accumulated air in them.
5. Contact Ariston technical service if the problem isn't resolved: if after performing all the above actions, the error continues to appear, it may be a more serious problem requiring the intervention of a qualified professional. In this case, you should contact the official Ariston technical service and request a review of your boiler.

In summary, the solutions for error code 108 on an Ariston boiler are as follows:

• Restart the boiler
• Check the water pressure
• Refill the circuit with water
• Repeat all the previous steps if the problem persists
• Contact Ariston technical service if the problem isn't resolved

We hope this article has been helpful for you to understand and solve the error code 108 on your Ariston boiler. Remember that if you have any questions or need professional help, you can contact the official Ariston technical service and request quality technical assistance.