How to solve the problem with the boiler without calling the wizard? Pay attention to signs of malfunction. Sometimes unobvious failures are displayed as errors of Termon boilers. This triggers a self-diagnosis system that includes monitoring sensors. By finding out the meaning of the error code, you can quickly find and eliminate the cause.
Features and device boilers
Czech Thermona heating equipment is available with one or two circuits. More powerful floor units require a separate room for installation, as well as a solid foundation. Wall-mounted appliances are popular in apartments, their compact body fits seamlessly into small kitchens.
The design is no different from other boilers. It includes an expansion tank for the selection of excess fluid during heating. Electronic control, easy adjustment thanks to an automatic system.
Mounted
These are devices from 14 to 90 kW. Water heating is carried out both through a flowing method, and using an additionally connected boiler. The device works efficiently on main and liquefied fuels. The combustion chamber is open and closed. Focus on your type of chimney.
Burner with flame modulation allows you to adjust the heating power, save fuel. Ignition is performed automatically. The protection system is provided:
- Overheating, ionization, exhaust gas sensor.
- Bypass
- Anti-freeze mode.
Among the model range you will find convection (standard) units and condensing ones. The latter additionally use the energy of the condensate, which increases their efficiency to 107%.
Floor
There are non-volatile models that do not require a connection to electricity. Long-life cast-iron heat exchangers increase the efficiency of the gas boiler. Power is regulated by a reduction gear. Such devices are not equipped with a pump, so the fluid circulates naturally. Electronic ignition.
Malfunction codes
The codes on the display can be reset by rebooting if this is a simple system failure. If after switching on the symbols again light up on the screen, then you need to find their reason.
Malfunction code | Value | Remedy and repair |
E01 | Problems with ignition. |
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E02 | The pressure in the system has dropped. | What you need to check:
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E04 | The heating thermistor is not functioning. | Diagnose the thermistor, its connections, and wiring for short circuit and open circuit. |
E05 | The hot water thermistor is defective. | |
E06 | Overheat protection tripped. | Perform diagnostics and inspection:
|
E07 | The external thermostat has failed. | Check performance. Connect work item |
E08 | Error manostat (in turbocharged models), exhaust gas sensor (open chambers). |
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E09 | Insufficient mains voltage. The boiler does not turn on. | Connect the stabilizer. |
E12 | Poor fluid circulation in the system. | Check pump. See the solution for E02. |
Other malfunctions of Termon boilers
In addition to the error code on the display, you may notice other problems.
The device is noisy when turned on
Check flame adjustment. You may need to lower the gas pressure. Remove the boiler body and look into the heat exchanger. If the equipment is constantly operated at a temperature of more than 55 degrees, scale quickly settles on the parts. Removing deposits will help pumping with a reagent, after which the unit is washed with clean water.
Install water filters to prevent salt deposits. They purify the liquid from magnesium and potassium salts.
When firing, popping sounds
The first reason is the poor quality of gas, which contains a lot of air. Also, excess air may come from the chimney, so adjust the damper.
If the flame breaks out during ignition, clean the burner of soot and soot. Clean the electrode from corrosion using fine-grained sandpaper. Sometimes the part is displaced when heated, normally the electrode should be located at a distance of 3 mm from the flame. Inspect its wiring and tightness to the control module. Reduce flame level.
Almost all electronic-related malfunctions can indicate a malfunction of the electronic board. If you checked all the options, then lastly check the board. Repair parts are best entrusted to a specialist.
DHW heating does not work
Ensure that the three-way valve is functioning properly. Perhaps it stuck. It is required to lubricate its parts or to install a new valve.
Follow the state of the art:
- Connect and install according to the instructions.
- To connect to the gas pipeline, invite a specialist.
- Remove dust, soot, dirt and scale from the heat exchanger, ignition units, chimney system, pipes, ventilation.
- Follow the readings of sensors, manometer. In case of any failure, it is better to initially eliminate its cause than to wait for a serious breakdown.
Experts recommend regular maintenance of gas equipment. Once a year, carry out cleaning, monitor the technical condition of units and parts. Now you know how the error codes look and how to deal with them.