Gas water heaters are installed in many apartments and private houses. They allow you to forget about problems with outages and repair of the water supply. On the other hand, they also have flaws and are prone to breakdowns. How to do DIY repair of Junkers columns? In the article, we examined the main ways.
Typical Junkers Geyser Malfunctions
The Junkers heater is more likely to be affected by ignition systems. Users complain that over time the wick or burner goes out, the device does not ignite, it does not warm 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 solutions.
The equipment does not turn on, does not light
Why is this happening? The reasons may be hidden in external factors:
- Incorrect water connection. Check the condition of the pipes and connections. Open the instructions - make sure that the connection is correct, the water flows normally into the system. Otherwise, the pressure in the line will be weak and will not allow to open the gas valve.
- No traction. The latest models are equipped with protective sensors. The principle of the traction sensor is to detect its presence. If there is no traction, the sensor sends a signal to the module - the column is turned off. The main reason is the chimney blockage. The combustion products are not normally discharged, the burner goes out. There may be poor ventilation in the room. 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 draft, burns exactly - no.
- A similar situation occurs when chimney outlet is blocked. Look, maybe an object or a satellite dish on the roof interferes with the output of combustion products.
- Overheat. 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, and also install cleaning filters. How to clean the gas column, read the previous article.
- Sensitive relay. You can observe that the burner ignites, then the igniter goes out. Try lowering the room temperature by opening windows, or replace the relay.
- The batteries are low. Technique with electronic ignition receives a spark due to batteries. If the batteries are dead, install new ones.
- Insufficient water pressure. Experts recommend selecting 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.
- Plenty of dust. If you have not cleaned the parts from dust, the flame in the burner may mow and not heat up the thermocouple. Cleaning is carried out with a brush or vacuum cleaner.
The wick goes out. Internal problems
What if the equipment stops working? Understand the causes of the problem.
- Defective rubber membrane. Why is it needed? When you open the mixer, pressure arises in the line that 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 the item. More details about the repair are written in the article “Water column gas column”.
- Filter mesh clogged. It is located at the entrance to the water node. Clogged with small debris, scum, rust. Remove and wash the part under running water, you can use a brush.
- Burner clogging in gas boiler. In the process of burning, soot and soot are deposited on the walls. If they are not removed on time, they clog the burner openings. Clean.
- Microswitch malfunction. In the normal state, when you ignite, a click is heard - the switch is activated. If you do not hear sounds, then check and change the item.
- Water valves do not work. It is necessary to clean the parts from rust, grease.
- Faulty wiring. Inspect the entire wiring loop, replace damaged parts.
- Contact broken. Lift and cleaning of contact groups.
Other causes of these problems:
- The gas supply valve is shut off.
- Piezo ignition does not work, or a short time of its pressing (you need to hold 10-20 seconds).
- Mixing flows when the cold faucet is open stronger than the hot one. The pressure decreases and the wick goes out.
Important! It is not recommended to mix, this contributes to the deposition of scale on the column details. It is better to adjust the temperature on the panel.
- The gas sensor failed. Need a replacement.
What factors cause equipment failure:
- Poor ventilation. Oxygen is not enough to maintain flame burning. Check for clogged ventilation. If you have plastic windows, installing a ventilation valve will help.
- Mixing streams.
- Untimely equipment maintenance.
- When connected, long hoses are used, which reduces pressure.
When to call a wizard
If you notice such problems, it is better to contact the service. But before that you have to make sure the breakdown:
- The traction, overheating, flame sensor 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 adjustment knob.
- Remove the device cover.
- There are clamps on top of the nozzle. Unfasten them.
- Take out a branch pipe, clean, wash under the tap.
- Dry and reinstall the part.
- Test the operation of the equipment. While holding down the power control, press the piezo ignition button. Hold for 10 seconds.
If all else fails, it is best to contact the wizard to replace the sensors. Many causes of the Junkers heater attenuation can be eliminated with one's own hands. If you connect the device correctly, monitor its cleanliness and serviceability, such problems will not arise.