Gas boiler Proterm. Proterm boiler errors

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.

Types of gas boilers Proterm

According to the installation site, all models are divided into wall-mounted and floor-mounted double-circuit or single-circuit options. The second group includes steel or cast iron units equipped with injection or fan burners, capable of operating on natural or liquefied fuel. The power of floor-standing installations ranges from 12 to 150 kW. Wall-mounted units are either naturally aspirated or turbocharged. Their power ranges from 11-35 kW.

Protherm gas boiler series:

Lynx is a condensing device that provides energy-saving heating of country houses and mansions;
Proterm Medved 40 klom 17 - reliable models equipped with a boiler and a heat exchanger made of cast iron;
Bison - universal devices that work equally effectively on gas, fuel oil and diesel;
Panther 24 ktv – features easy-to-use KNX and a new security system;
Grizzly - suitable for heating buildings with an area of up to 1500 m², device power reaches 150 kW;
Jaguar is an inexpensive model that can be used simultaneously for heating and hot water;
Wolf - capable of working without power supply, equipped with a heat exchange unit made of steel;
Proterm Gepard 23 mtv is a wall-mounted unit that is suitable for a private house and apartment.

Proterm boilers are characterized by high build quality, reliability, simple installation and operation. But periodically the equipment requires cleaning, repair or replacement of parts. Spare parts for the Protherm boiler are supplied by the European company Vaillant. If problems are corrected in a timely manner, a long service life of heating devices is guaranteed.

Decoding

Fault code f75 is typical for all models of Proterm Gepard boilers - MOV, MTV of different power. Generated by the electronic board, it indicates an error (failure) of the extract air circuit pressure sensor. When the heating unit is started, the circulation pump comes into operation, therefore, pressure is created in the system, otherwise coolant flow cannot be achieved. In accordance with the program, the pressure should increase by at least 50 bar. If the sensor does not register a jump (5 unsuccessful starts of the pump), the ECU regards it as a blockage (malfunction) of the pumping device and issues error f75.

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Step 1

Restart . Imported equipment is sensitive to the quality and stability of the supply voltage. In case of surges, low values, or temporary disappearances, false fault codes appear caused by failures in the electronics of the Proterm Gepard boiler. Press the button Reset, hold for 5 seconds, error f75 will disappear.

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Basic error codes and malfunctions of the Protherm gas boiler

All problems are quickly detected by a self-diagnosis system, which includes thermistors and other parts that respond to changes in service settings. The sensor transmits a signal to the electronic board, which displays the error on the screen.

An alert consists of a specific combination of letters and numbers. For each fault there is a special code. The detailed list of errors is quite long and is specified in the repair instructions that come with the heating equipment. The frequency of occurrence of certain failures depends on the modification of the installation.

The most common error of the Proterm Gepard boiler is a breakdown of the gas pressure regulator (F28-29),

and Jaguar malfunctions are usually associated with sensors or changes in operating parameters to critical levels.

When the antifreeze overheats, F01 goes off. If there are problems with ignition, code F04 appears. Sensor malfunctions are indicated by the values F02, F03, F09. Often the code F10 is displayed on the screen, signaling pressure failures.

The most common Proterm Bear malfunctions are associated with errors F10, F73, F20, F28. The first two codes indicate a short circuit in the water supply circuit or on the housing. F20 signals overheating, and F28 indicates no ignition. The causes of the problems are related to incorrect temperature settings, which you can adjust yourself.

The Proterm Panther 30 ktv boiler is popular, malfunctions of which are often associated with system overheating (F20-21) and pressure failures (F22). The operation of pumping equipment is also often disrupted (F23, F24, F25). Proterm Leopard boilers are quite common in private homes, the errors of which are associated with the supply voltage. So, a drop in pressure is indicated by code F0, and problems with sensors are indicated by code F2-F8.

What does error f1 mean and how to fix it

Error f1 indicates that the ignition is blocked. The reasons for the breakdown are related to the lack of a signal about the presence of fire. In this case, the gas valve remains open, the safety system is activated and the equipment is turned off. To eliminate the malfunction, you need to restart the unit by pressing the corresponding button on the housing.

Read more: Why does a gas boiler go out? Main reasons

Error f3

Code f3 signals overheating of the heating equipment. When the temperature reaches 95 degrees, the protective mechanism is automatically activated and the system turns off. To resume boiler operation, it is enough to wait until the temperature indicators return to normal. If the failure recurs, the thermal fuse should be reset.

Error f4

If the hot water sensor is faulty, code f4 appears on the display. The equipment continues to heat the house, but does not heat the water. To get rid of this Protherm boiler error, you will need to replace the sensor or clean the oxidized contacts.

The gas boiler shows error f04 (ionization device malfunction)

Error f 04 indicates problems with ionization. To troubleshoot the ionization device, you need to reboot it and check whether the gas valve is open.

Error f7

Error f7 signals a broken connection. To eliminate the breakdown, you will need to inspect all wires for visible damage, ring the wires, check all inputs and the control board. If the source of the failure cannot be determined independently, then you need to contact a service center.

F20 fault

Error f20 is selected when the safety thermostat is triggered. The causes of the problem are overheating of the equipment or an open circuit. To repair, you need to test the wiring and reconnect the device. You should also inspect the pumping equipment and release the air.

Error f28, how to fix it

The reasons for the f28 error in the Protherm gas boiler are related to gas supply failures, breakdown of the ionization electrodes and electronic board, and grounding faults. Equipment repair depends on the source of the problem.

How to resolve error f28:

Make sure the gas valve is open, reboot the system several times, check the equipment settings;
Clean the ionization electrodes with fine-grained sandpaper;
Change the polarity of the socket and check the grounding of the unit;
Replace the electronic board.

What does error f75 mean in a Proterm gas boiler?

Error f75 is due to a faulty pressure sensor. The reasons for the failure are the occurrence of air locks in the pipes. The source of the problem may also be insufficient coolant pressure.

F01, F08.

Overheating is the most common error, typical not only for gas Proterm Jaguars. In 80% of cases it is caused by external factors; There is no need to remove the unit casing and repair it. This means that the warranty on the boiler will not be violated if the problem is fixed. This error is a consequence of a sharp slowdown (or cessation) of coolant circulation. As a result, the temperature of the liquid in the heating circuit rises to the maximum permissible value: the Proterm Jaguar protection is triggered.

Probable Causes

Recommendation:

Bleed the system until the coolant flows in a continuous stream.

Recommendation:

Inspect the heating circuit throughout the house. Stains on the floor and puddles will indicate where the system has depressurized. There may also be a hidden defect that cannot be detected visually. For example, when installing pipes under cladding. In this case, you need to add coolant and systematically monitor the pressure in the circuit. Its repeated decrease and error F01 are a sign of a leak in a place inaccessible to view. It's easy to figure out where to look.

Recommendation:

Check the voltage at the terminal block, the integrity of the wires, the absence of short circuits (to the body, to each other);

Dismantle the pump and rotate the impeller: it should rotate freely. Deformation of the blades or shaft, oxidation, salt deposits are the causes of error F01 Proterm Jaguar. If it is impossible to eliminate the defects, the boiler pump is replaced.

Recommendation:

Check signal line. It is not advisable to test the sensor for functionality using a multimeter - it is easier to replace it, since the error has an unambiguous interpretation.

Recommendation:

It is not difficult to remove the device from the Proterm Jaguar boiler to assess the condition of the cavity. But washing it at home is problematic. To soften deposits, a special solution is poured into the heat exchanger. And only after standing for several hours is it washed with water under pressure.

Cleaning the Proterm Jaguar heat exchanger yourself will cost free, but the effect will be short-lived. There is a high risk that at the height of the heating season an F01 error will appear and the boiler will have to be stopped and the device serviced again. It’s better to contact a workshop - for at least a year and a half there will be no complaints about the heat exchanger.

Hot water temperature sensor. If the wires are intact, there are no short circuits or breaks, replace them.

Possible reason

Possible cause of the error is a clogged secondary heat exchanger

Recommendation:

It is necessary to carry out maintenance of the device.

Heating circuit sensor: similar to DHW (F02).

No burner flame. The Proterm Jaguar error is caused by a lack of signal from the boiler ionization sensor.

Probable Causes

Air duct problem. The combustion chamber in Proterm Jaguar boilers is closed. Therefore, during installation, a coaxial chimney is connected to them. If it is clogged (for example, with debris or wind-blown leaves), then error F05 will appear on the display. It is also initiated by poor traction - it is quite easy to eliminate on your own.

If this problem arose during the initial start-up of the boiler, you need to make sure that the chimney is assembled correctly. The error may be the result of illiterate actions of the installer, and until the errors are corrected, Proterm Jaguar is unlikely to start.

The temperature in the heating return line is above critical. The error is issued if the corresponding sensor located in the boiler is faulty - replace it.

Problem with gas fittings Proterm Jaguar.

Recommendation:

All you can do yourself is check the signal circuits. A specialist should evaluate the performance of the valve and adjust it.

The error appears due to a failure or incorrect operation of the pressure switch.

Probable reasons:

Recommendation:

If everything is fine with the electrical part, you need to turn off the power to the boiler and push the turbine impeller. Rapid stopping of the blades is a sign of a split bearing and thermal deformation of the shaft. The Proterm Jaguar error can be resolved by replacing the fan.

Problem with pressure in the heating circuit. The reasons are partially described in relation to code F01. It is necessary to bring the coolant level to normal and monitor the system. If there are no leaks and the error is repeated, the conclusion is clear: sensor malfunction.

Recommendation:

Elimination must begin with assessing the condition of the signal wires and the reliability of the contacts.

Poor coolant circulation. See error F01.

Recommendation:

Such a code on the Proterm Jaguar display indicates a difference in temperature at the outlet and inlet of the boiler over 35 C. If it appears during the initial start-up, and no other reasons have been identified, you need to evaluate the correctness of the heating circuit diagram. When independently developing a project, errors can be made in calculating the length of the route, determining the number of radiators, or when choosing their type and dimensions - there are enough nuances that trigger the appearance of the F11 code.

Problem with supply voltage. If it drops to 165 V, the following error is displayed on the Proterm Jaguar display.

Recommendation:

This can be eliminated forever by connecting the boiler to the network via a UPS.

The error is similar to F11. Appears when the temperature of the coolant at the inlet to the boiler exceeds its value at the outlet.

Probable Causes

Advice.

All other causes of Proterm Jaguar errors are caused by malfunctions or malfunction of the boiler electronics. It is useless to diagnose the board yourself: you need to contact a service center - the module is replaced. The only thing you can do is check the fuse. It can burn out if the Proterm Jaguar is connected directly to an outlet, and there are constant problems with the power supply/voltage at the facility.

Source

Other faults

The appearance of an error does not mean that a major overhaul of the Proterm gas boiler is required. False alarms are common, so the equipment needs to be restarted first. If the problem does not disappear, then you will need to conduct a thorough diagnosis. Some boiler error codes are more common, others less common, but in any case you should act according to the instructions, without panic.

Error 00

Code 00 indicates a breakdown of the temperature sensor. To eliminate the malfunction, you need to reboot it, carefully inspect and clean the contacts. If necessary, the temperature sensor will need to be replaced. To avoid high gas consumption, it is recommended to buy original parts.

Error a6

In Protherm heating equipment, error a6 appears when the air temperature is low at the installation site of the unit. To solve the problem, you need to heat the room by installing a reducer.

Error f05

Error f05 in a Protherm gas boiler indicates a lack of air for the normal functioning of the unit. To eliminate the breakdown, you need to clean the chimney, check the draft, and open the window in the boiler room.

Decoding

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Step 1

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Step 2

Check the pressure . In the system instructions (t 0 p, blockquote 4,0,0,0,0 —>

Advice

In a closed system, one reason for a decrease in pressure is a violation of tightness, a leak. It is easy to detect visually by stains on the floor. But if the defect is minor (microcrack), it is more difficult to detect. This is indicated by the periodic appearance of error f75 and the need for recharge. The problem with determining the “culprit” section of the circuit is that coolant droplets evaporate from the hot surface. If the liquid is prepared and of high quality, then there will be no characteristic stains or yellow spots left on the materials (plastic, metal). The only solution is to turn off the Proterm Cheetah boiler, let it cool, and walk around the house. Using the stains from the dripping drops, you can determine the location of the defect. Leaks under the heating unit can be caused by a faulty safety valve.

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Step 3

Vent the air . It enters the system in different ways. Even if it is sealed, the installation of the Proterm Cheetah boiler was carried out professionally, the appearance of bubbles in the liquid cannot be avoided. Gas formation is initiated by heating the coolant: increasing temperature accelerates the process. The air impedes circulation, and the “bubble” completely blocks the tract. This causes error f75.

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There is no need to rely on automatic valves - if the coolant is of poor quality (hard water), they often do not work. Walk through the house, bleed manually in all areas where this is possible (provided), including the pump, expansion tank. Removing air from the circuit clears error f75.

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Step 4

Check the pressure sensor . Testing for serviceability is simple - by shorting the terminals. This simulates the operation of the device; a signal about a change in pressure (jump) is sent to the ECU of the Proterm Cheetah boiler. If error f75 disappears, the cause has been found.

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Malfunction or incorrect operation of the flow sensor is caused by contamination of the filter to which it is connected. Clogging of pipes and heating radiators with sediment causes error f75. It can be removed by washing the mesh. Do it carefully to avoid damage.

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Advice

Finding the cause of the fault code should begin by checking the signal lines. If there is a break or unreliable contact in the pressure sensor - ECU circuit, error f75 is guaranteed.

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Step 5

Pump diagnostics. It is not difficult to verify that the device is working properly and correctly. Error f75 Proterm Cheetah does not necessarily indicate a breakdown of the pump - it appears if the device does not reach the design mode. In this case, the pressure increase is insignificant, and the sensor does not detect it.

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Causes

There are several reasons for the incorrect operation of the Proterm Cheetah pump, in addition to those indicated: shaft curvature, bearing destruction, breakage or interturn short circuit of the winding. Each of them is reflected in the generated pressure and initiates error f75. It is impractical to restore functionality (repeating factory assembly, alignment will not work), and in some cases it is impossible (the shaft is not sold at retail). The pump for the Proterm boiler is inexpensive and easier to replace.

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Step 6

Inspection of the electronic board . To test the EPU, you need a stand that simulates the Proterm Gepard boiler. But a number of defects can be identified visually.

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Additionally

The article provides detailed recommendations. Proterm Gepard has different hydraulic units installed, depending on the year of manufacture of the boiler. But understanding what causes error f75 of the heating unit, you can remove it yourself. If the result is negative, contact customer service. When submitting an application, be sure to indicate the year of manufacture of Proterm Gepard and the full designation of the EPU (alphanumeric markings are applied to the board). The technician will replace the unit for testing in a hospital setting, and the boiler will not be idle.

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Signal Line Problem Codes

Troubleshooting for such errors Proterm Panther involves checking the reliability of the corresponding contacts, the integrity of the wires, and the absence of a short circuit (between them, to the body).

Sensor circuits

F0 (F1) – heating circuit at the output (input) of the boiler. In other words, on the supply or return.

F2 – DHW.

F3 – boiler.

F4 – collector (if it is built into the heating system).

F5 – exhaust gas temperatures.

F6 – traction.

F7 – return line (incorrect connection when included in the solar collector circuit).

F8 – boiler grounding.

F9 – hoods.

Important Rules and Precautions

Therefore, before you begin repair work, remember and never break the following rules:

A stingy person always pays twice, so trust the repair of your own equipment only to companies that specialize in such work. They will issue the appropriate document and also carry out repairs taking into account the characteristics of the breakdown. It's one thing to add water to the system, but another to replace the circuit board or internal pump.

In order for the boiler to break down less often (and this often happens in winter, during the period of active use), before the start of the heating season, a preventive start-up should be carried out by calling specialists.

They will evaluate the operation of gas equipment, carry out routine cleaning of the heating element from scale, and also give advice on how to properly use the boiler in the future. Prevention is always better than replacing broken expensive parts.

Helpful information.

Proterm Panther are wall-mounted gas heating boilers, available in several modifications: KOO, KOV, KTO, KTV. The differences between them are in the number of circuits, the type of combustion chamber, the principle of ignition of the igniter, and power. In all other respects there is no big difference. Therefore, errors that appear on the display are interpreted in the same way regardless of the version of Proterm Panther.
Finding and eliminating the problem that has arisen should begin with the following activities:

Double-circuit boiler Protherm Pantera
Single-circuit boiler Protherm Pantera

press the REZET button (on the boiler control panel). Often, Proterm Panther errors are caused by failures in the power supply network and false alarms: in 75% of cases, the code displayed on the display disappears. But its reappearance is a sure sign that there is a malfunction in the heating system or the boiler itself;
check that the parameters are set correctly. Perhaps, due to problems in the Proterm Panther power supply, the values of the values have changed - adjust.

For the convenience of the reader, all errors are grouped in the text into categories. This will speed up the search for a solution to the problem.

Noise in the middle of the tank

If the boiler is making noise, then you need to listen to the sounds.

The noise is uniform and monotonous.
The noise is uneven. Cods are heard.

If the boiler makes noise evenly and monotonously, then there are no problems with its operation. The source of noise is the heating of water. This noise can be weak, or it can be loud. It all depends on whether the heating system is open or closed. If it is open, the boiler makes louder noise. The reason is the presence of air in the coolant .

When the boiler makes uneven noise and crackles are heard, this is a breakdown. The cause may be scale on the heating element. The high temperature of the heating element causes the scale to heat up, which is accompanied by increased noise. Uneven sound and crackling occurs due to the fact that the thickness of the scale in individual areas of the heating element is different. The noise is generated like this:

First, thin deposits of limestone are heated. They don't make too much noise.
Thicker deposits are then heated. They take longer to heat up. That's why they hum louder than fine deposits.
The cracking sounds are very thick. This sound can also be created by plaque, which has begun to lag behind the heating element.

Causes of breakdowns

The causes of breakdowns can be established even before the boiler starts operating. These are: errors in the design and calculations for the selection of additional devices (not included in the boiler configuration), switching elements, determination of the type and cross-section of the required installation wires.

The causes of breakdowns in the future may be:

Poor quality, incorrect installation and connection of the device with deviations from installation requirements.
Violation of the basic rules for using the equipment specified in the instructions.
Failure to comply with the requirements for carrying out routine, preventive and periodic work and inspections.
The presence of a manufacturing defect, which is discovered both during the warranty period and after its completion.
All components and assemblies have a certain service life, and the reason for their failure is natural wear and tear.
In heating element boilers, the heating elements themselves may fail due to low water quality and the formation of salts and scale on their surface.
Failure of most components and assemblies due to large voltage surges exceeding all permissible standards. These tolerances are specified in the operational documentation.

For ion boilers, water compliance with the required standards is of great importance.