Repair of the Proterm gas boiler: typical faults and methods for correcting 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.
The content of the article:
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 – “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.
Wall-mounted models include 1- and 2-circuit, naturally aspirated and turbocharged, power 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" – a popular wall-mounted model that can be installed both outside the city, in a country house or in a cottage, and in a city apartment.
- "Bear" – among representatives of various series - reliable units with a built-in boiler, cast iron heat exchanger and power up to 49 kW.
- "Bison NL" – universal models according to 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" – an electrically independent boiler with a steel heat exchanger, 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.
For example, if the coolant overheats to +98°C, the boiler pauses its operation and an error appears on the display F01.
Often ignition does not occur, and when trying to light the flame again, an error appears 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.
About blocked chimney of a gas boiler signals 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 notify about malfunctions of various sensors.
Replacing elements requires skill and experience - and if you do not have them, we recommend contacting a service center.
Quite often an error appears on the display F10pressure related. One of the reasons is a breakdown of the pressure sensor, the replacement of which is best left to the gas specialists with whom contract signed for maintenance and gas supply. But if the problem is a change in pressure parameters, you can correct the situation yourself.
Operating pressure range – 1-2 bar. If the value falls below 0.3 bar or rises above 2.7 bar, the unit stops. To return it to work again, you need to return the operating parameters.
How it's done:
- find the make-up valve in the lower part of the boiler, near the contour pipes;
- turn it counterclockwise until the pressure returns to normal;
- close the valve by turning it clockwise - if it is not closed, the pressure will continue to increase.
It is better to strive for 1.5 bar - the positive results of the actions will immediately be reflected on the display. If you overdo it and raise the pressure to 2.5 bar, the boiler will stop working again. During make-up, the pipes to which the hot water supply and heating pipes are connected must not be closed.
Floor-standing boiler “Bear”
Most of the malfunctions of the Bear gas boiler are eliminated in two ways:
- automatically, after eliminating the cause (for example, F.10 – short circuit of the temperature sensor in the water supply circuit, F.73 – short circuit on the housing or disconnection of the hydraulic pressure switch, etc.);
- by pressing the fault reset key located on the control panel (for example, F.20 – signal from the temperature limiter, F.28 – no ignition at the first start, etc.).
Some breakdowns or malfunctions can be adjusted/repaired manually, without contacting representatives of the gas supply and service company.
If the boiler refuses to turn on and work and does not heat the water, there are many reasons for this “behavior”.
Sometimes the boiler “protests” due to incorrect temperature settings - it is necessary to adjust the temperature on the supply line, as well as the temperature of the hot water. If there is not enough pressure, you need to add water, and if there are air pockets, bleed the air from the radiators.
The situation changes if one of the functions remains in force, but the second one fails. For example, the unit heats water in the DHW circuit, but refuses to heat the house. Most likely, the program settings have gone wrong and the boiler “believes” that the room is already warm enough. You need to adjust the calculated temperature value in the house, and the heating circuit will start.
If, on the contrary, the heating is normal, and cold water flows from the hot water tap, it is necessary to increase the temperature of the hot water.
If the boiler suddenly turns off and a code appears on the display F.20, the manufacturer recommends unlocking the safety temperature limiter.
Procedure:
- Wait until the unit cools down.
- Using the diagram of the device, remove the front trim from the body.
- Find access to the fuse under the junction box.
- Turn and remove the cap.
- Press the pin as deep as possible.
- Press the reset key.
- After making sure that the boiler is working, return the front panel to its place.
If the problem recurs regularly, it is better to contact service.
Wall-mounted boiler “Cheetah”
Error codes and recommendations for correcting them are similar for all Proterm wall-mounted boilers, but there are slight differences, since the technical characteristics also differ.
For example, the operating pressure range is from 0.8 bar to 2 bar, so only after the readings drop below 0.8 bar will the unit generate an error. In order for the device to work again, you need to add water to the heating system.
How to fill the heating system:
- Open thermostatic valves.
- Open the filling device.
- Slowly pour in water until the network pressure reaches operating parameters.
- Remove air from radiators.
- Close the filling device.
During the procedure, do not forget to monitor changes in pressure values on the display.
One of the common mistakes is the failure of the valve that regulates the gas pressure (error F.28-29), so let’s look at how to repair the Proterm gas valve yourself.
It is necessary to turn off the gas supply at the inlet and the power supply. Then remove the front metal panel, find for gas valve repair and carefully unscrew it.
If the valve is simply clogged with poor quality fuel, you need to disassemble it and wipe all elements, being careful. If the blockage occurs due to wear and tear of parts, the valve must be replaced. Most often, plastic elements break, which can simply be replaced.
The reason may also be hidden not in the valve itself, but in the power supply system - you need to check all contacts and make sure there is a stable power supply.
To correct errors in the Proterm Gepard gas boiler, you need to refer to the technical documentation, which contains the manufacturer’s advice. In case of failure gas boiler sensors and other elements require replacement.
If you are unable to replace temperature sensors, electronic boards, or fittings yourself, it is better to contact a service center. While the unit is under warranty, you cannot carry out repairs yourself.
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.
