Faults and error codes of gas boilers Proterm: causes, manifestations and methods of elimination

A fault or error code can cause more than just inconvenience when your home’s heating system is a gas boiler; it can also interfere with your comfort and daily schedule. Despite their reputation for dependability and efficiency, Proterm gas boilers can occasionally have problems. It is essential for homeowners to comprehend common flaws, their causes, and how to fix them. This information can potentially save time and money on repairs by preventing the escalation of issues in addition to aiding in prompt troubleshooting.

A Proterm boiler’s error codes are intended to notify you right away if something goes wrong. These codes identify the exact issue, be it a minor one like a blocked filter or a more serious one like a broken heat exchanger. You can better understand the actions you need to take by understanding how to interpret these alerts and decide whether to seek professional assistance or attempt a small repair on your own.

We’ll examine the most frequent issues and error codes related to Proterm gas boilers in this post. We’ll go over the meaning of these codes, common symptoms to look out for when they arise, and helpful suggestions for dealing with them. Whether you’re an experienced do-it-yourselfer or a novice to home heating systems, you’ll find useful advice on how to effectively and safely manage and maintain the performance of your boiler.

Error Code	Cause	Manifestation	Solution
E01	Low water pressure	Boiler stops or fails to start	Check and refill the system to the correct pressure
E02	Overheating	Boiler shuts down or displays warning	Inspect circulation, remove blockages, and reset the boiler
E03	Flame failure	Intermittent heating or no flame ignition	Clean the burner, check the gas supply and ignition electrodes
E04	Fan or flue issue	Noisy operation, error message on display	Ensure flue is clear and check fan operation

Important rules and precautions

It goes without saying that using malfunctioning gas equipment puts lives in danger. A small mistake that a professional could have fixed in 15 to 20 minutes can explode and become deadly at any time.

Therefore, keep in mind and never break these guidelines before beginning any repair work:

1. Not all errors can be eliminated by yourself – some of them indicate systemic breakdowns, for the elimination of which only a specialist is needed. Opening the boiler and making repairs without authorization and without experience is fraught with negative consequences.
2. It is strictly forbidden to open the internal parts of the boiler – schemes on the Internet, hints from locksmiths or neighbors will not help if a person does not have the appropriate skill. So you can damage expensive parts, the replacement of which will cost not one thousand rubles.
3. Do not use faulty gas equipment – some craftsmen bypass all prohibitions, making system resets, forcing the boilers to work bypassing the control by the central board. This leads to rapid wear and tear of individual parts, as well as high explosion and fire hazards.
4. If all measures are taken to eliminate the error (the simplest ones) have failed and the boiler still does not function, it is necessary to call a specialist and not to repair the boiler yourself.

A miser always pays twice, so only use businesses that specialize in equipment repair to handle repairs on your own. Together with making the necessary repairs while accounting for the failure’s unique characteristics, they will also issue the proper paperwork. Replacing the board or internal pump is a different matter entirely from simply adding water to the system.

To reduce the frequency of boiler breakdowns, which typically occur during winter when the boiler is in use, it is recommended to perform a preventive start-up prior to the heating season by contacting experts.

They will evaluate how well the gas equipment is operating, perform a routine cleaning and descaling of the heating element, and offer guidance on future boiler operation. Avoidance is always preferable to having to replace pricey, broken parts.

The most common errors, deciphering and ways of elimination

Contemporary boilers Proterm equipment is fitted with automation that, in the event that any one of its individual components malfunctions, initiates and ceases the equipment’s operation. controls every function of the central board, which provides codes to the user as prompts. You can determine the precise reason for the forced shutdown and how to resolve it by deciphering them.

F0 – critically low pressure in the circuit

Pressure in the heating system drops sharply to critical values (0.65 bar) when the boiler emergency stops.

This may occur for the following reasons:

When condensation forms on the board, short-circuiting the contact tracks on the board itself, Protherm boilers frequently display the F0 error at the exact moment of board malfunction. externally appeared as pauses and the darkening of certain areas. Installing gas equipment in an unheated room at a low temperature causes condensation to develop.

Keep in mind that the coolant (water) cannot evaporate a priori because the heating circuit is a closed system. If this code appears frequently enough, try to find a leak.

How to fix this error without having to contact the masters:

• Go through the entire heating circuit in search of water leakage. Particular attention should be paid to the joints, especially if they are not soldered, and twisted. If there is damage to the pipes, the system is disconnected, the water is drained, repairs are made, after which the heating is started again.

• Inspect the expansion tank for leaks or check the water supply tap from the common water supply to the heating circuit. Often the problem lies precisely in the faucet, which over time gives a leak, visually assessing the presence of which is practically impossible. Replacing the gasket or replacing the entire valve in 95% of cases solves the F0 code problem.
• Check the bottom of the boiler for condensation or moisture.

Only skilled workers are capable of performing the remaining steps to open the boiler and evaluate the boards’ and each component’s level of operability.

Check your batteries for blockages if the issue has been resolved and the boiler restarts without displaying an error. Bleed the air through each until water appears.

F1 – no flame in the burner

When everything is done as planned but the ignition still fails, owners of Proterm boilers frequently complain about ignition issues. On the other hand, if the boiler does manage to ignite, it may extinguish on its own, resulting in the F1 error appearing on the display.

There are several such causes of a lack of flame in the burner that are unrelated to a breakdown:

1. Lights out in the house – no spark that could ignite the gas in the burner.
2. Gas supply valve is blocked – there is a spark, but there is nothing to ignite.
3. Triggering of the shut-off valve at power failure, which forms an error and blocks the operation of the boiler.
4. Clogged pipes, plugs, summer storage valves that are preventing gas from flowing out of the burner.

Make sure the gas and light supply are available before starting the boiler. Some customers complain about the lack of spark, forget to plug in the boiler, and call the repair service "for nothing."

For the same reasons, a Proterm boiler error and no flame may also occur, signaling a malfunction that requires repair:

• Triggering of the emergency thermostat when the temperature in the circuit is higher than the values allowed by the manufacturer. The boiler will start automatically as soon as the temperature is reduced. Why such a failure occurred – there are a lot of reasons. Particular attention is paid to assessing the condition of the thermostat. Often there are failures in it.
• Problems with the ionization sensor, which gives a false signal about the absence of flame, although in fact there is one. Frequent cause – soot on the electrode itself, which leads to the formation of cracks and fractures.
• Lack of contact of the ionization sensor with the burner. The recommended distance is no more than 5-7 mm, but during cleaning it can be increased up to 10 mm. It is necessary to correct the end of the wire to the burner and the problem will disappear.

• Contamination of the nozzles with soot and dust, which prevents adequate operation and ignition of the boiler.
• Failure of parameters in the boiler control system – removed by resetting and restarting the boiler. Occurs at sharp voltage surges in the network, which causes emergency stop of the Proterm boiler operation.
• Faults in the electronic board, including condensation and small short circuits. Along with the F1 error there are other errors that indicate the need for full diagnosis and repair.

Checking the gas supply and the boiler’s network connection is the most that can be done without repairmen. The professionals only handle the remaining tasks.

Opening the boiler and entering the nozzle by yourself is not advised. Erroneous decisions can have negative effects and result in significant extra expenses.

F2 – temperature drop to critical values

Two scenarios lead to this error:

1. The coolant temperature has dropped to +3°C, which is fraught with ice formation, so the boiler switches off automatically.
2. The temperature is inadequately evaluated, a conflict occurs.

The temperature sensor is the source of the issue; it has failed. Its breakdowns may be caused by shorted contacts or recurrent voltage surges in the power grid. In the event that such an error occurs, the sensor needs to be disassembled and examined for issues. Most of the time, a new one must be installed in its place.

F3 – boiler overheating

When the boiler’s allowable temperature is exceeded, an error occurs. This causes an automatic shutdown to take place in order to protect people and the equipment.

The Proterm boiler’s high critical temperature values may result from the following causes:

• Limescale in the heat exchanger that builds up without preventive cleaning. Hard water is also the cause of scaling.
• Transport plug, which is installed at the factory in order to prevent dust, debris and dirt from getting inside the boiler. It must be removed during installation, otherwise it will provoke overheating due to blocking of the circulation channel.
• Filter contamination – a filter is installed on the section from the return line connection pipe to the pump, which becomes clogged over time, protecting the heat exchanger and the internal circuit from suspended particles from the heating system.
• Pump inoperability – heating takes place inside the boiler, but the water is not distributed through the system, which provokes overheating of the unit and emergency shutdown. The pump should be inspected and the cause of the stoppage identified. Often these are internal contaminants, which can be easily removed with a napkin.

The only things that can be determined independently are pump operation issues. You can accomplish this by hearing it. The working apparatus makes a sound resembling liquid being pumped, along with a faint vibration. It’s crucial to confirm that the pump is connected to the network when using a single-circuit boiler, which has the pump located outside the heater’s structure. Experts handle the remainder of the work.

F6 – back draft sensor activation

Indicates that the sensor that regulates the release of gases is malfunctioning. A breach in the integrity of the contact between the board and the sensor is frequently the root cause (wire damage).

Diagnostics are required not just for the sensor but also for the circuit board. There are times when it is the cause. Additionally, you ought to be mindful of the ignition transformer. When it malfunctions, the sensor’s performance is distorted.

F7 – communication breakdown

One of the sneakiest mistakes that mechanics detest the most. It indicates that a break in the connection between the equipment’s connecting components occurred somewhere. And precisely where to look—you’ll have to look by hand, breaking down contacts into their component pieces.

F10-F19 – short circuit error group

Errors falling within this range denote individual element faults and short circuits, about which the code will inform you:

• F10 – the temperature at the outlet of the heat exchanger;
• F11 – inlet temperature;
• F12,13 – hot water temperature when the boiler is connected;

• F14,17 – If a solar collector is connected;
• F15 – chimney sensor;
• F16 – pressostat;

Serious malfunctions could occur if you do not remove this short circuit and restart the boiler to fix the issue.

F24 – rapid temperature rise

Reduced coolant levels and a sharp rise in system temperature are the issue, and they can be brought on by the following factors:

1. Malfunction of the pump, which does not pump water through the system: contamination, breakage, jamming of the main mechanism, lack of connection to the network.
2. Blowing out of the heating system, when there is air in the radiators that is heated faster than water. You need to go through each battery and drain it until there is a trickle of water without bubbles.
3. Water left the system due to an unclosed tap on the supply or the presence of leaks. Need to check all twists and solders as well as batteries and faucets for leaks.

A safety mechanism that stops the boiler from operating is automatically triggered if the temperature rises very quickly. Only after it has dropped a few degrees can it be restarted. The steps are the same as they were for issue F0.

F-25 – ventilation problems

When the boiler detects a high level of carbon monoxide, an automated sensor is activated. This opens the snout’s contacts and shuts off the boiler.

This kind of situation can arise for the following reasons:

• Chimney wall leaks, cracks and gaps appear in the joints.
• Faulty thermostat, which fixes false values.
• Fan failure, which prevents exhaust gas from escaping outside the living space.
• No draught, especially if the outlet pipe has been covered with paper or rags for the summer.
• Control board malfunction.

It is imperative to examine the ventilation system for the existence of drafts and any potential pipe contamination. The remaining diagnostic tasks are completed exclusively by a master.

F-28 – flame extinction at switching on

A flame wick forms at ignition and extinguishes in the first minute.

This issue is caused by the following factors:

• Low gas pressure or the faucet is not opened all the way (or closed at all).
• The ionization electrode is contaminated with soot, which should be periodically cleaned.
• Problems with the electronic board at frequent voltage surges in the network.

It is preferable to get in touch with an expert in this case, who will examine and clean the entire ignition group, helping to get rid of the error.

F-29 – flame extinction during boiler operation

Typically, there are two reasons:

1. Gas supply interruption in the system – the boiler operation is blocked, as an emergency shutdown signal is generated on the board.
2. Faults in the board itself – gives false signals due to damage or short circuits.

Only an expert should attempt to solve the issue.

How to avoid errors: general tips and recommendations

Preventing something always seems easier than dealing with the fallout. Recall these subtleties:

• Work with gas equipment should be entrusted only to professionals who give a guarantee.
• Faulty parts should be replaced only with originals. If spare parts from other boilers are installed (especially dangerous second-hand), no one can guarantee the safety of the work of such equipment.
• Do annual preventive cleaning of the boiler. There are special companies that provide these services in full.
• Do not forget to check the extractor hood. Sometimes it can become clogged.
• Do not allow the temperature in the room where the boiler is located to drop below 3°C.
• Check the water level in the system, paying attention to the pressure. The norms for your boiler are written in the operation manual.

The most crucial guideline is to never use a boiler that is broken or consistently displays certain errors.

Finally, it’s important to remember that occasionally, gas boilers manufactured by Protherm will give false fault codes. In the event that this occurs, the cause must be found and removed. Like the repair, only a specialist can provide a complete diagnosis. Opening the lid and replacing parts by yourself is not advised since it may be dangerous for your health and life in general.

Although troubleshooting Proterm gas boiler faults and error codes can initially seem overwhelming, knowing the typical problems and how to solve them can make the process much simpler. It is imperative that homeowners become acquainted with the fundamental expressions of these mistakes. They frequently indicate problems with blockages, malfunctioning sensors, or ignition, all of which are fixable with cautious troubleshooting or expert assistance.

Regular maintenance can help prevent a lot of boiler issues. Annual inspections, for example, can assist in identifying minor problems before they become more serious ones. By doing this, you can prolong the life of your boiler and ensure that it runs efficiently, which will ultimately save you money and hassle. Maintaining the functionality of your heating system requires practical knowledge such as when to call a technician, how to reset your boiler, and how to clean important parts.

Lastly, it’s helpful for users to have a reference on the most typical error codes and what they mean for their Proterm boiler close at hand. Certain problems can only be fixed by experts, but there are other problems that can be fixed with a few easy steps, like cleaning the filters or resetting the boiler. Recall that timely and well-informed action is the key to efficiently managing boiler malfunctions. When in doubt, the safest way to make sure your heating system stays dependable and effective is to speak with a certified technician.

When dealing with faults and error codes in Proterm gas boilers, homeowners may encounter various issues that could disrupt their heating systems. Common problems include error codes indicating ignition failures, pressure drops, or overheating, which often stem from blocked filters, low gas pressure, or system leaks. To effectively address these issues, it"s crucial to first understand the specific error code displayed by your boiler. This can guide you to whether you might need to clean or replace parts like sensors and filters, reset the system, or in some cases, consult a professional technician for more complex repairs or adjustments. Regular maintenance and timely troubleshooting based on error codes can help ensure your boiler runs efficiently and reliably, keeping your home warm and comfortable.

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