Do-it-yourself Junkers column repair: main malfunctions

Geysers are installed in many apartments and private houses. They allow you to forget about problems with shutdowns and repair of water supply. On the other hand, they also have flaws and are prone to breakage. How to repair Junkers speakers with your own hands? In the article, we have analyzed the main methods.

Typical malfunctions of the Junkers geyser

The Junkers heater is more often subject to malfunctions that relate to ignition systems. Users complain that over time the wick or burner goes out, the device does not ignite, it does not heat the water well.

To determine the cause of the breakdown, you need to inspect the parts, check their performance. We will provide examples of common Junkers problems and how to fix them.

The equipment does not turn on, does not light up

Why is this happening? The reasons may be hidden in external factors:

  • Wrong water connection. Check the condition of pipes and connections. Open the instructions – make sure that the liner is done correctly, the water enters the system normally. Otherwise, the pressure in the line will be weak and will not allow the gas valve to be opened.
  • no traction. The latest models are equipped with protective sensors. The principle of operation of the thrust sensor is to detect its presence. If there is no draft, the sensor sends a signal to the module – the column turns off. The main reason is a clogged chimney. Combustion products are not discharged normally, the burner goes out. Perhaps the room is poorly ventilated. It is necessary to clean the chimney or install a ventilation valve.

To check the draft, bring a burning match to the control window. The flame deviated – there is thrust, it burns evenly – no.

  • A similar situation occurs when chimney outlet blocked. Look, maybe some object or a satellite dish on the roof is preventing the output of combustion products.
  • Overheating. Scale deposits reduce the efficiency of heat transfer, which can cause the column to overheat. Then the sensor is triggered, and it turns off. Once a year, it is recommended to clean the heat exchanger from scale, as well as install cleaning filters. How to clean the gas column, read the previous article.
  • Sensitive Relay. It can be observed that the burner ignites, then the igniter goes out. Try lowering the room temperature by opening the windows, or replace the relay.
  • The batteries are empty. Electronic ignition equipment receives a spark from batteries. If the batteries are dead, you need to install new ones.
  • Insufficient water pressure. Experts recommend choosing a column in accordance with the parameters of your system. If the device is too powerful and requires high pressure, you will have to install a pump or install a new one.
  • An abundance of dust. If you have not dusted the parts, the flame in the burner may mow and not warm up the thermocouple. Cleaning is carried out with a brush or vacuum cleaner.

The wick goes out. Internal problems

What to do if the equipment stops working? Understand the causes of the problem.

  • Faulty rubber membrane. Why is she needed? When you open the mixer, pressure builds up in the line, which acts on the membrane. Bending, she pushes the stem, and he opens the gas valve. If the membrane is damaged, stretched, the system malfunctions. Replace element. Read more about the repair in the article “Water geyser unit».
  • Clogged mesh filter. It is located at the entrance to the water node. Clogged with small debris, pieces of scale, rust. Remove and rinse the part under running water, you can use a brush.
  • Clogged burner in a gas boiler. During combustion, soot and soot are deposited on the walls. If they are not removed in time, they clog the burner holes. Clean up.
  • Microswitch failure. In the normal state, when ignited, a click is heard – the switch is activated. If you do not hear sounds, then check and change the element.
  • Water valve not working. It is necessary to clean the parts from rust, lubricate.
  • Wiring violation. Inspect the entire wiring loop, replace damaged parts.
  • Contacts broken. Tightening and cleaning of contact groups is carried out.

Other causes of such problems:

  • The gas supply valve is closed.
  • The piezo ignition does not work, or the time it is pressed is short (you need to hold it for 10-20 seconds).
  • Mixing of flows when a cold faucet is opened more than a hot one. The pressure decreases and the wick goes out.

Important! It is not recommended to engage in mixing, this contributes to the deposition of scale on the column parts. It is better to adjust the temperature on the panel.

  • The gas sensor has failed. Need a replacement.

What are the factors that cause equipment failure?

  • Poor ventilation. There is not enough oxygen to keep the flame burning. Check ventilation for obstruction. If you have plastic windows, installing a valve for ventilation will help.
  • Mixing streams.
  • Late maintenance of equipment.
  • When connected, long hoses are involved, which reduces pressure.

When to call the master

If you notice such problems, it is better to contact the service. But before that, you must make sure that it breaks:

  • The sensor of draft, overheating, flame is constantly triggered.
  • The column is clogged.

Often the pipe that is responsible for the gas supply is clogged. How to clean it:

  • Remove the temperature control knob.
  • Remove the cover of the device.
  • There are clips on top of the pipe. Unfasten them.
  • Take out the pipe, clean it, wash it under the tap.
  • Dry and install the part in place.
  • Test the technology. While holding the power control, press the piezo ignition button. Hold for 10 seconds.

If all else fails, it is better to contact the master to replace the sensors. Many reasons for the attenuation of the Junkers heater can be eliminated with your own hands. If you connect the device correctly, monitor its cleanliness and serviceability, such problems will not arise.

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