Error 01 Immergas Boilers

What does this fault affecting Immergas boilers mean?

Immergas gas boilers are reliable equipment but sometimes they may experience errors and faults that require our attention. Error code 01 is one of the most common in Immergas boilers, especially during installation or after preventive maintenance, as this issue is related to ignition problems in the appliance.

If your boiler doesn't start, doesn't ignite, and/or displays this code, you don't need to worry, because today we're going to explain in detail what causes this problem and what solutions are available to fix it definitively.

This fault that occurs in Immergas boilers indicates a security lock due to ignition failure. However, this problem can occur after a prolonged period of inactivity of the boiler or even on the first ignition after installation. Fortunately, there are simple solutions to solve this problem and restart your boiler.

These are the causes that can trigger this fault on your boiler's display:

• A dirty and/or damaged electrode: The electrode is responsible for the ignition spark. If it's damaged or dirty, the boiler won't start correctly.
• Issues with the internal wiring: A problem in the wiring can affect communication between the boiler's components.
• An inactive gas supply: If there's no gas available or you're experiencing supply problems, the boiler can't ignite, plain and simple.
• A faulty ionization probe: The ionization probe measures the presence of the flame in your boiler. If this probe is very dirty or damaged, the boiler won't function correctly.
• A fault in the PCB electronic card: The electronic card or PCB controller is responsible for managing all the boiler's functions. If it's damaged or faulty, it will obviously display an error on the screen, potentially being error code 01.

All of these are the causes that can trigger this fault in your Immergas boiler. Now, let's see how we could fix this problem.

Can a definitive solution be found for error code 01 on the Immergas boiler?

We have prepared for you a list of solutions to fix this problem. Don't skip any step, follow everything to the letter, and you'll see that sooner rather than later, your boiler problem will be resolved!

1. Turn off and disconnect the boiler can help solve the problem, as it resets the sensors: We can start with the easiest and simplest of all steps, which is to apply a boiler reset. To do this, you need to completely turn off your boiler and disconnect it from the power outlet for a few minutes. Wait for at least 15 minutes and reconnect the boiler. Turn it on and now check if this error has disappeared. If the problem persists, then you'll have to proceed with the other steps we've provided below.
2. Check the gas supply to your Immergas boiler: Make sure there is gas available and that the shut-off valve is fully open. If you suspect that the pipes may be obstructed or something similar, then open the valve of another appliance that uses gas as fuel to check, whether it's a gas stove or a gas grill. Verify if the supply is indeed active; otherwise, contact the company supplying the service to check if the problem is due to a billing issue or scheduled maintenance in your area.
3. Clean the electrode of your Immergas boiler and calibrate it if necessary: Locate the electrode of your boiler and clean it carefully to remove any dirt or residue. Also, check that it's level and calibrated to provide a good spark and ignition. Make the necessary corrections according to the manufacturer's manual and following the instructions for your boiler's specific model. Once you've corrected the electrode, check if the error has disappeared.
4. Check the internal wiring of your Immergas boiler and make sure it's in perfect condition: If you haven't used your boiler for a long time, a rodent may have chewed on one of the cables. It's also possible that the cable protections have deteriorated due to the boiler's excessive temperature or that moisture has corroded the connections. So, you need to check all the wiring of your boiler, from end to end, wire by wire, and connection by connection, to ensure it's in optimal working condition. If you find corrosion, you need to remove it. If you find cut, bitten, burned, or scorched cables, you need to replace them. Once you've made the necessary repairs, check if the error has disappeared from your boiler.
5. Ensure the ionization probe is in good condition to function: If the probe is very dirty, then it's time to perform preventive maintenance because this probe is responsible for detecting whether there's a flame in the ignition of your boiler. If the probe is very dirty, remove it from the boiler and clean it carefully; you can use a soft cloth moistened with alcohol or electronic cleaner to assist you with this task. Once you've cleaned it, check if the error in your boiler has disappeared; otherwise, you'll need to replace it with one of the same model that is compatible with your Immergas boiler.
6. Inspect the PCB electronic board of your Immergas boiler if you have knowledge in electronics: Use a multimeter and check each of the components connected to the electronic board of your boiler, as well as the resistors, capacitors, etc. It's possible that one of these components is not sending the correct values or is already defective and needs to be replaced. Before replacing any of these components, visually inspect them for attached corrosion or if they appear burned or swollen, as a simple maintenance may fix the problem. If not, then you'll need to replace these components and/or replace the electronic board entirely.
7. If the problem persists with your boiler, carefully check each step we've explained in this article: Don't get discouraged; make sure you haven't skipped any of the steps mentioned in this guide. If you still can't find a solution, then maybe it's time to consult an expert. A qualified professional or the official Hermann technical service can diagnose and solve the problem accurately.
8. If the problem has become too difficult, don't worry, because the experts have the right solution: A qualified technician or the official Immergas technical service will help you solve the problem with your boiler in record time. With experience, knowledge, and appropriate tools, they will guarantee an effective repair for your boiler. Don't hesitate to seek professional help so that your boiler can function correctly and without any problems.

In summary, the error code 01 in Immergas boilers indicates ignition problems with the appliance. This fault can be caused by various issues such as a problem with the gas supply, electrode problems, failure of the ionization probe, internal wiring problems, and/or issues with the PCB electronic card of the boiler. To fix it, you need to follow all the steps we've provided in this guide.

We hope we've been very helpful in fixing this problem affecting your boiler. Remember that good preventive maintenance can be the solution to all the problems that may arise with your boiler. Good luck!