Protherm boiler error f04 ionization device malfunction

The Proterm brand has long been known on the Russian market: gas equipment regularly performs its functions for heating and hot water supply in both residential buildings and small industrial facilities. Sometimes equipment breaks down. If the reason is a manufacturing defect, then it is better to replace the boiler immediately, but minor problems can usually be eliminated on their own.

We will tell you how you can repair a Proterm gas boiler yourself, based on self-diagnosis data and the manufacturer’s recommendations. We'll show you how to identify a malfunction of equipment using the code. We will advise you on how to accurately determine the cause of the breakdown by decoding.

In the article we present you will find a description of the popular positions in the model range of boilers of this brand. Get acquainted with typical malfunctions in the operation of units for heating systems and methods for troubleshooting.

Review of the Proterm brand series

If we consider gas-fired equipment, then according to the installation location, all boilers can be divided into two large categories:

• wall mounted – “Lynx Condence” and “Lynx”, “Panther”, “Jaguar”, “Cheetah”;
• floor-standing – “Bear” (series KLOM, KLZ17, PLO, TLO), “Bison NL”, “Grizzly KLO”, “Wolf (Volk)”.

Despite the Turkish and Belarusian assembly, the quality of the equipment is high in European style.

Among the wall-mounted models are 1- and 2-circuit, atmospheric and turbocharged, with a power of 11-35 kW.

Floor-standing models are made of steel or cast iron, equipped with injection or fan burners, and can operate on natural and liquefied gas. The power range is wide – 12-150 kW – so choosing a device for specific conditions is easy.

Each series has distinctive features regarding design, dimensions, installation method, technical characteristics, additional functions:

• “Lynx” - condensing models are 12-14% more economical than non-condensing models, therefore they are recognized as energy-efficient devices for heating country houses and cottages.
• "Panther" - the latest models are available with a convenient eBus communication bus and an updated security system
• “Jaguar” - the main advantages are the low price of the unit and the possibility of separately adjusting two circuits - heating and hot water.
• “Cheetah” is a popular wall-mounted model that can be installed outside the city, in a country house or cottage, or in a city apartment.
• “Bear” - among the representatives of various series - are reliable units with a built-in boiler, a cast-iron heat exchanger and a power of up to 49 kW.
• “Bison NL” are universal models in terms of the fuel used: they operate equally efficiently on gas, fuel oil or diesel fuel, power up to 71 kW.
• "Grizzly KLO" - capable of heating private houses and office premises with an area of ​​up to 1500 m², maximum power - 150 kW.
• “Wolf” is an electrically independent boiler with a steel heat exchanger that stably supplies heat to country houses and residential buildings even in the absence of electricity.

According to consumer reviews, Proterm units are reliable, efficient, easy to install and operate, and with regular maintenance they hardly fail.

However, durable materials, good fuel and excellent assembly do not guarantee impeccable service, so boilers of all the listed series sooner or later require replacement of spare parts, cleaning or repair.

Error codes and how to fix them

Thanks to the self-diagnosis function, modern boilers themselves detect faults, and information in the form of digital or alphanumeric codes is displayed on an electronic display. Once you understand what is hidden under a particular code, you can look at the table located in the installation and operating instructions.

The Proterm brand produces many modifications under different series, and the error codes for different models may not be the same. To clarify the meaning, be sure to study the documentation of your unit.

Let's look at the errors of Proterm gas boilers, which are most common in popular models.

Models "Jaguar 11" and "Jaguar 24"

The main problems that users encounter relate to either sensor failures or changes in performance indicators to critical levels. Let's look at the errors of the Proterm Jaguar gas boiler, represented by two popular models with a power of 11 kW and 24 kW.

F01 is displayed .

Often ignition does not occur, and when trying to light the flame again, error F04 . There may be two reasons: breakdown of the ionization electrode or interruption of the gas supply.

The easiest way is to check if the gas valve is open. If everything is fine with the fuel supply, the problem is in the ionization system, which not everyone can repair on their own. The manufacturer recommends contacting a service center.

A blocked chimney of a gas boiler is indicated by code F05 . If the air supply is restored, the unit will continue to operate. The same error indicates changes in voltage: if it drops below 165 V, the boiler operation stops until the operating parameters stabilize.

Codes F02, F03, F09 indicate a malfunction of various sensors.

Replacing elements requires skill and experience - and if you do not have them, we recommend contacting a service center.

Quite often the display shows error F10 associated with pressure.
One of the reasons is a breakdown of the pressure sensor, the replacement of which is best entrusted to gas workers with whom an agreement has been concluded for the maintenance and supply of gas. But if the problem is a change in pressure parameters, you can correct the situation yourself.

What to do if the boiler shows F?

This section lists all possible fault codes along with the corresponding corrective actions that the USER CAN perform to restore the equipment to operation (Corrective Action: ...). Other faults MUST only be repaired by a qualified technician.

Error messages are shown on the display in the place where the pressure value in the heating system is normally displayed. Along with the fault code, the telephone icon and the letter F with the corresponding error code flash on the display.

Under normal operating conditions, the 10 most recent error messages can be displayed on the display by pressing both buttons for setting the heating temperature at the same time for approximately 7 seconds.

Decoding

To eliminate the fault code f04 of the Proterm boiler, you do not need to call a service representative - the operation of the heating unit is restored independently. The difficulty is that it is interpreted differently if you study the correspondence on thematic forums. Hence the differences in recommendations for elimination. This is a consequence of the variety of models of Protherm gas boilers and the similarity in error designations. For some units it is indicated as F4 (reason - NTC DHW), in the instructions for others (Proterm Jaguar) - f04.

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This error informs that the electronic unit does not receive a signal from the ionization sensor about the presence of a burner flame. Appears on the display during unit operation or at startup. The reasons causing error f04 on different Protherm boilers are identical. To save time when troubleshooting the problem, the following troubleshooting algorithm is recommended.

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What to do

Step 1

Perform a reset. Errors in gas heating equipment are initiated by problems with the supply voltage: a decrease in value, a jump, a temporary shutdown. Fault codes can be cleared by pressing the “NETWORK” or RESET buttons (depending on the model).

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Step 2

Make a switch: pull out the plug from the socket, turn it over, and put it back in place. The functioning of a number of Proterm boilers depends on the correct connection to the network. The electronic circuit is phase-dependent, reacts if 0 and zero are applied to the board contacts F and zero

220 respectively. Error f04 will disappear.

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Step 3

Advice

The lack of gas supply to the Proterm boiler is also caused by malfunctions of the devices included in the main line: a meter, a reducer, a filter or an ice plug, or the depletion of LPG volume in the tank (with an autonomous supply). It is easy to check whether “blue fuel” is supplied to the house by checking the gas stove. The pressure is judged by the uniformity of the flame of all burners, intensity, and height of the reeds. Any of the factors causes the Proterm boiler to stop with error f04. Decision: depending on the circumstances.

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Step 4

Inspect the ionization sensor.

There are several reasons why error f04 appears:

Step 5

Clean the burner. Gradually, the injectors become clogged with dust and soot falling from the heat exchanger body. The mixture does not pass through the holes, the flame disappears, and error f04 is displayed. Solution: remove dirt with a brush and vacuum cleaner. You should not use pneumatics (for blowing), as some websites recommend - microparticles will scatter throughout the interior of the Proterm and the room.

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Step 6

Assess the condition of the electronic board. Diagnostics are carried out in a service workshop on a stand that simulates the operation of a Proterm boiler in various modes. You can independently determine only visible defects: damage to tracks, melting of parts, chips (cracks) of housings, charred areas. Error f04 appears when the ionization sensor-board circuit is broken: evaluate the reliability of the contacts.

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Step 7

Check the operation of the gas valve.

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The unit is controlled by commands from the electronic board of the Proterm boiler and is responsible for supplying “blue fuel” to the burner and its dosing. Incorrect operation, block failure causes error f04. Self-disassembly is not practical. The main problem is the deposits of microparticles in the cavity of the copper tube connected to the inlet of the fittings. Solution: disconnect, clean off sludge, join. Be sure to change the O-ring and check for gas leaks.

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In practice, the recommendations given make it possible to remove error f04 from the Proterm boiler. If the result is negative, contact the service department, indicating the model and year of manufacture of the heating unit.

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Share your experience

If you have experience in correcting error F 04 in a Protherm gas boiler, write in the comments to this article, we will try to consider your option and analyze it in detail in this or one of the following articles. You can also send photos and videos with comments and descriptions.

Czech-made Proterm gas boilers have long established themselves as reliable and easy-to-use heating devices. There are many different modifications of these units on the market: floor-mounted - bear, wall-mounted - cheetah, lynx, panther. All of them are equipped with a liquid crystal display, so all faults of the Proterm gas boiler appear on it.

Error codes for Baxi wall-mounted gas boilers

Summary list of fault indications for Baxi wall-mounted gas boilers equipped with a liquid crystal (LCD) display, models EcoCompact, Fourtech, Eco Four, Main Four, Main 5.

E01 (01E) - flame control sensor. Boiler blocking after three unsuccessful ignition attempts:

• There is no gas, the gas valve is closed, low pressure in the gas pipe.
• The phase and neutral wires of the electrical network for phase-dependent boiler models are mixed up.
• The ionization flame control electrode is faulty or dirty.
• The ignition unit or electrodes are faulty.
• The gas valve is faulty or incorrectly adjusted.
• Lack of air for gas combustion in the boiler burner

E02 (02E) - heating circuit temperature sensor. Overheating of the coolant in the heating circuit:

• Temperature sensor malfunction.
• Insufficient heat transfer to the sensor - it is recommended to apply thermal paste where the sensor body adheres to the adjacent part of the boiler.
• Insufficient coolant circulation through the heat exchanger due to pump malfunction or air in the system

E03 (03E) - draft sensor (thermostat in boilers with an open or pneumatic relay in boilers with a closed combustion chamber). Insufficient draft in the chimney or flue system:

• Traction sensor malfunction.
• Fan malfunction.
• Reducing the cross-section of a chimney or chimney.

Only for boilers with an open combustion chamber. As a result of the draft failure, the flue gas thermostat overheated and, as a result, an emergency shutdown of the boiler occurred. Check the chimney and whether it has the required draft.

Troubleshooting tips:

 Check the chimney for the tightness of the seams and connectors, for compliance with the manufacturer’s recommendations for length and diameter, for the absence of obstacles in the smoke channel (clogging, icing), for blowing and backing of draft by the wind (for the location of the chimney head relative to the roof)

 Check the free flow of air into the room where the boiler is installed. There must be an inlet from the street or from an adjacent room with windows.

For a boiler with an open combustion chamber, if the air comes directly from the street, then a supply ventilation opening of 8 cm2 per 1 kW of boiler power is sufficient, but not less than 200 cm2. If the air supply comes from an adjacent room of the building, then the minimum size of the supply ventilation opening should be determined at the rate of 30 cm2 per 1 kW of boiler power. The supply valve in the room with the boiler is installed at a height of no more than 30 cm from the floor. This could be a ventilation grille in the wall or door, or just a gap under the door.

Note: Electric hoods are prohibited in the boiler room.

 Check the functionality of the flue gas thermostat.

E04 (04E) - flame control sensor. Frequent, more than six times, loss of flame on the burner:

• The reasons listed in E01 and E42 are
• Exhaust gases entering the boiler supply air duct.

E05 (05E) - heating circuit temperature sensor. No signal from the sensor:

• Malfunction of the heating circuit temperature sensor or open circuit with the electronic board.

E06 (06E) - DHW circuit temperature sensor. No signal from the sensor:

• Malfunction of the DHW circuit temperature sensor or open circuit with the electronic board.

E07 (07E) - NTC flue gas temperature sensor. No signal from the sensor:

• Faulty flue gas temperature sensor or open circuit with the electronic board.

E08 (08E) - electronic board. Error in flame control circuit:

• There is no grounding of the electronic board, there is no contact in the circuit between the board (connector X4) and the power supply box.
• Malfunction of the electronic control board.

E09 (09E) - electronic board. Gas valve safety circuit error:

• Malfunction of the electronic control board.

E10 (10E) - minimum pressure switch for the heating circuit. Insufficient coolant pressure in the heating circuit:

• Check the pressure gauge readings and, if necessary, add water to the heating circuit.
• Minimum pressure switch faulty.

E12 (12E) - differential hydraulic pressure switch. There is no signal from the pressure switch:

• The circulation pump does not work.
• The heating system is contaminated.
• Insufficient coolant circulation (filter clogged, hydraulic resistance of the heating system is high).
• Malfunction of the pressure switch (membrane, microswitch, impulse tube)

E13 (13E) - differential hydraulic pressure switch. False signal from the pressure switch: stuck contacts of the pressure switch microswitch.

E22 (22E) - electronic board. Boiler shutdown due to low voltage in the electrical network, less than 162 V:

• The voltage in the electrical network does not meet the standard.
• The electronic board is faulty.

E25 (25E) - heating circuit temperature sensor. The rate of temperature increase in the heating circuit is more than 1 oC/sec:

• The circulation pump does not work.
• The heating system is contaminated.
• Insufficient coolant circulation (filter clogged, hydraulic resistance of the heating system is high).
• The heating circuit temperature sensor is faulty.

E26 (26E) - heating circuit temperature sensor. Exceeding the coolant temperature by more than 20 °C from the set one:

• The circulation pump does not work.
• The heating system is contaminated.
• Insufficient coolant circulation (filter clogged, hydraulic resistance of the heating system is high).
• The heating circuit temperature sensor is faulty.

E27 (27E) - DHW circuit temperature sensor. Incorrect sensor position:

• The DHW circuit temperature sensor is installed incorrectly.
• The DHW circuit temperature sensor is faulty.

E32 (32E) - temperature sensors for the DHW and heating circuits. Exceeding the heating temperature above 95 ° C twice in a row. Reducing the water temperature in the DHW circuit by 3 °C:

• Presence of scale in the bithermic heat exchanger.
• Malfunction of the NTC temperature sensor of the DHW circuit.

E35 (35E) - flame control sensor. Flame presence signal after the burner is turned off:

• The gas valve is faulty and does not completely shut off the gas supply.
• Moisture on the electronic board of the boiler.
• Interference coming from the electrical network. It is necessary to install a voltage stabilizer with galvanic isolation from the electrical network, and check the proper grounding of the boiler.

E36 (36E) - flue gas temperature sensor. The flue gas NTC sensor is faulty.

E40 (40E) – flue gas temperature sensor. GDC does not pass cyclic flue gas temperature tests:

• The flue gas NTC sensor is faulty.
• Obstruction of the chimney or air supply channel.

E41 (41E) - gas valve. GDC does not pass cyclic tests for ionization current:

• There is no gas, the gas valve is closed.
• The flame control electrode is faulty or dirty.
• Gas valve is faulty.
• Gas valve not calibrated.

E42 (42E) - fan. GDC fails initial tests. Boiler blocking after three unsuccessful attempts:

• The fan is faulty.
• Obstruction of the air supply channel.

E43 (43E) - electronic board. Blockage due to possible blockage of the air supply or too low gas pressure:

• Reasons described in E40 and E41.
• Inconsistency of the quality of supply electricity with the requirements of the standard (low voltage, interference)

E50 (50E) – NTC flue gas temperature sensor. Blockage due to flue gas temperature rising above 180 °C:

• Insufficient coolant circulation.
• The flue gas NTC temperature sensor is faulty.

E55 (55E) - gas valve. Gas valve not calibrated. It is necessary to perform calibration (parameters F45 and F48 of the service menu).

E62 (62E) - flame control electrode. Triggering of safety devices in the absence of stabilization of the flame signal or flue gas temperature:

• The flame control electrode is faulty or dirty.
• The NTC flue gas temperature sensor is faulty.

E65 (65E) - electronic board. Triggering of safety devices due to frequent, 10 times within 10 minutes, clogging of the air supply channel: reasons described in E40 and E41.

E96 (96E) - electronic board. Low voltage in the power supply network.

E97 (97E) - electronic board. The voltage frequency in the electrical network differs from 50 Hz.

E98 (98E) - electronic board. Internal error on the electronic board. Incorrect board parameter configuration:

• The parameters have not been configured depending on the boiler type.
• Parameters F03 and F12 of the service menu are set incorrectly.
• Electronic board malfunction.

E99 (99E) - electronic board. An internal error on the electronic board, which accumulates as a result of interference from the power supply network and leads to an independent reboot of the boiler.

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Error codes, their causes and solutions

The interpretation of error codes for Proterm units is approximately the same for different models. If you want to find out in detail what malfunctions of the Protherm Leopard or Panther gas boiler indicate, take a look at their operating instructions. Below are all possible error codes.

codes F00 and F01 – flow and return temperature sensors are turned off. This error means that ignition is blocked and fuel supply through the gas valve is stopped. It can be caused not only by a direct malfunction, but also occur due to the activation of the safety system - the emergency thermostat. Low fuel inlet pressure, incorrect phase and zero connections can also cause loss of flame.

Errors in Proterm floor units

If there is a problem with the Proterm Bear floor-standing gas boiler, error codes appear:

1. F2 – temperature sensor malfunction. This error indicates a breakdown of the temperature sensor or a decrease in the coolant temperature to 3ºC. The operation of the unit is blocked, since switching on at a temperature below 3ºC is not allowed by the manufacturer.
2. F3 signals an increase in coolant temperature to 95ºC. In this case, the unit is blocked. It will resume operation after the liquid has cooled.
3. F4 – boiler sensor failure. In this case, the unit does not heat the liquid in the boiler.
4. F5 – external temperature sensor is broken. The unit remains operational, but the coolant temperature will be regulated by the boiler sensor.

You can try to reset the error code that appears on the screen for the first time by pressing the “RESET” key. If this does not help and you cannot determine the cause of the failure, call a specialist from the Proterm service center.

Conclusions and useful video on the topic

Recommendations for repairing the Proterm Gepard boiler:

Potential problems of the Panther boiler and their solution:

Cleaning and diagnostics of the “Bear” boiler:

Two categories of people engage in independent repairs: home craftsmen who enjoy it, and equipment owners who are trying to save on calling a specialist. If you do not belong to these groups, we recommend that in the event of a serious breakdown, contact the service center immediately.

Professional repairs are always more expensive, but more reliable. The installation of new parts is guaranteed, and a representative of the service organization assumes responsibility for all replacement, repair or cleaning actions. In general, safety increases as a result of the actions of experienced professionals.

Not all factors that trigger heating unit fault codes are evidence of serious equipment failure. Users often encounter error f04 Proterm. Knowing the causes of the problem allows you to solve the problem yourself. How is described in the article.

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