Domusa Boilers Error 02

What does this fault affecting the Domusa boiler want to tell us?

Boilers play an important role in our homes, as they help us keep them warm and comfortable. However, like any other appliance, they can experience faults that affect their operation, and Domusa boilers are no exception. Error code 02 is a message indicating that there is a fault with the boiler pressure. This error code can be more than just a number; it's a warning sign for us to take action and prevent larger problems in the future.

This fault affecting Domusa boilers occurs when the device detects insufficient water pressure for stable operation. This can be due to various reasons, from a simple water leak to a more complex issue with the safety valve. Identifying the exact cause of the problem is important so that you can find an appropriate solution and ensure that the boiler operates efficiently and safely.

These are the possible causes that may lead to this problem in Domusa boilers:

• Low gas pressure: If the gas pressure is less than 1.2 bar, the boiler cannot operate properly. Therefore, you will need to investigate why this pressure has decreased and rectify the fault.
• Water leaks in the circuit: A leak can reduce internal pressure and affect the boiler's performance, causing various errors to appear on its display.
• Faulty circulation pump: A pump that is not functioning correctly can prevent proper water circulation throughout your boiler's circuit.
• Damaged safety valve: A faulty safety valve can release pressure and cause the error to appear on your boiler's display.

Now that you know the causes that can lead to this problem and harm your boiler, let's look at the solutions you can apply to continue using your boiler without any problems or faults.

Can a solution be found for error code 02 in the Domusa boiler?

This is a list of possible solutions that we have prepared for you today. Please take note of each of these steps, follow them to the letter and do not skip any, since they are all important:

1. Turning off and disconnecting the boiler can help solve the problem, as this procedure resets its sensors: We can start with the easiest and simplest of all steps, which is to perform a boiler reset. To do this, you need to completely turn off your boiler and unplug it from the power outlet for a few minutes. Wait for about 15 minutes and then reconnect the boiler. Turn it on and now check if this error has disappeared. If the problem persists, then you'll need to proceed with the other steps we'll outline below.
2. Check that the water supply is active and working correctly: Open the other faucets in your home or office to verify that you have water supply activated. If you experience a water supply interruption, contact the company supplying the service to confirm whether the interruption is due to a payment issue or scheduled maintenance in your area. Also, check the shut-off valve that supplies water, both the main one for your entire home or office and the one specifically for the boiler. If these valves are partially open, please fully open them to ensure smooth and consistent water supply to your boiler.
3. Adjust the water pressure and ensure it is configured according to the manufacturer's specifications for Domusa: Check that the water pressure is correct; it may be too low, and you may need to adjust the pressure gauge accordingly. This pressure should be between 1.2 bar minimum and 1.5 bar maximum, but these values may vary depending on the model and capacity of your boiler. Refer to the manufacturer's manual before making any adjustments to water pressure. Once you have corrected the water pressure, check if the error has disappeared.
4. Inspect the circulation pump of your Domusa boiler and ensure it is functioning properly: Check that the pump is working correctly and is not obstructed by anything. If necessary, remove it from the boiler and perform preventive maintenance. If you have electronics knowledge, test it with a multimeter and ensure it has good continuity in connection to the PCB electronic board of your boiler. Also, check that the wiring connecting this pump is in excellent condition.
5. Evaluate the safety valve of your Domusa boiler: Ensure that the valve is not releasing pressure unnecessarily and/or leaking. If the valve is damaged, it may be necessary to replace it with a new one, but before doing so, you can try performing some minor preventive maintenance. Disassemble the valve and clean it with water and a bit of vinegar, use a brush with bristles to clean it thoroughly, especially in the holes. Let it dry thoroughly and then reassemble it onto your boiler. Now check if this procedure has resolved the problem you were experiencing with the boiler.
6. Inspect the entire water circuit of your boiler and look for any unwanted water leaks: Ensure that the boiler does not have any leaks in the entire water circuit. To verify this, you'll need to inspect the hoses, joints, connections, filters, and valves, basically everything. Check everything thoroughly, and if you find any leaks, make the necessary repairs or replace the affected components and parts with new ones to prevent leaks in the future.
7. If the problem with your boiler persists, carefully review each step we've explained in this article: Don't get discouraged if you haven't found the solution yet; make sure you haven't skipped any of the steps mentioned in this troubleshooting guide. If you still can't find the solution, it's time to consult with an expert in the field who can assist you. A qualified professional or Domusa's official technical service can help diagnose and resolve the problem accurately.
8. If the problem persists, don't worry, because the experts have the right solution: A qualified technician or Domusa's official technical support will help you solve the issue with your Domusa boiler in record time. They have the necessary experience and knowledge, along with the tools and original spare parts to handle this situation in the best possible way, ensuring an effective repair. You can contact them by phone and schedule a home visit. Don't hesitate to seek professional help to get your boiler working correctly again!

To summarize, in order for you to find the solution to error code 02 in Domusa boilers you have to follow all the steps that we have described in this advice guide. This failure is due to low pressure in the boiler water circuit, and its causes may be the following: low gas pressure, water leak in the circuit, damaged circulation pump and/or or the safety valve that is damaged or dirty. Remember that if you cannot solve the problem yourself, you can always rely on Domusa technical support to find the solution to this problem. Don't get discouraged and focus on fixing your boiler. Thank you very much for reading this far, and good luck with the repairs!