Is the gas boiler making noise? This symptom may indicate a malfunction in the heating system. To cope with breakdowns, you need to find the reasons. Do not constantly ignore the problem, because it can lead to a complete failure of the boiler. If the appliance slams, pops, beeps, start troubleshooting.
Technique noisy when heating water
Modern boilers work quietly, so vibration, noise, extraneous sounds should alert you. What may serve as an indirect reason:
- Incorrect installation, connection.
- Incorrect setting.
- Deterioration of knots.
There are quite specific reasons why the boiler is buzzing.
High oxygen content
The water in the pipes is oversaturated with oxygen, which is why bubbles are released during heating. This effect leads to increased noise and vibration of not only the device, but also the batteries.
Air accumulation in the system
If the boiler knocks and puffs, it is necessary to bleed air in the pipes. Cranes are installed on modern radiators. Unscrewing them, you can remove the accumulated air.
Scale formation
The high salt content in the water leads to their deposition on the walls of the heat exchanger. Therefore, when heated, the unit will hiss. In addition, the heating rate and heat transfer are reduced. Once a year, it is recommended to clean the radiator. To do this, a reagent pump is prepared, and cleaning fluid is pumped through the hoses.
Fan problems
The fan works in models with a closed chamber and forced exhaust of combustion products. Why does he make strange sounds when spinning, whistling:
- The grease in the bearings has dried due to placement above the burner. Under the influence of high temperatures, the grease dries quickly, which leads to wear on the bearing. Disassemble and lubricate the part.
- Imbalance of blades, accumulation of dirt and dust. The blades are being cleaned and adjusted out of rotation.
Overpressure in the heating pump
The pump pumps high pressure, you need to adjust its settings. Too high system pressure can lead to an emergency. You can adjust the values by switching the white lever on the terminal box.
Serious overheating is caused by a lack of water in the system. First of all, check the thermostat values, set lower values. Measure pressure, add coolant if necessary.
And:
- If the boiler howls, the problem is in the incorrect setting of the gas valve or bypass (jumper pipe).
- When operating at high power, a gas meter may rattle.
- A worn valve makes rattling sounds.
Pops and clicks when firing up
When you start the boiler "Ariston" or another brand heard knocks and claps? The problem requires an immediate solution.
Three-way valve
The part is used to switch the operation of the unit from heating hot water (DHW) to heating, and vice versa. A faulty valve will click each time it is ignited. In this case, he needs a replacement.
Ignition unit
Loud cotton occurs during prolonged ignition of a spark. Then a lot of gas accumulates, which flares up during ignition. Be sure to diagnose the unit: burner, igniter, electrode, contacts and connections.
Wick clogging
When firing up, the product bangs, which indicates a blockage in the wick or chimney. The problem is typical for semi-automatic models. Inspect the wick: if a blockage is found, clean it.
To verify that the chimney is clogged, check for traction:
- Bring a lit match to a control window or ventilation.
- If the flame deviates to the side, the draft is normal; if it burns evenly, cleaning is needed.
For your part, you can clean the shaft. But for complete removal of pollution it is better to contact the utilities.
In models with automatic ignition, the electrode could become clogged. Strip the part and install 3-4 mm from the burner.
Nozzles clogged
When heating, noise is heard, ignition does not occur, or the flame breaks out jerkily. Shut off the gas supply and clean the holes with a thin wire.
Incorrect installation
If the calculation and mounting of the device case is incorrect, the sounds of metal shocks appear. When the lining is heated, the metal expands, and when cooled, it returns to its previous position, which leads to extraneous sounds.
The same thing happens with pipes that are walled up in the walls. When you turn on the heating and start the hot water, the pipes expand slightly, which leads to knocks. When installing pipes in the walls, it is required to leave a gap for thermal expansion.
Heat exchanger plates clogged
Then the boiler explodes when heated. And the plates can become clogged with dust, soot and soot. Remove the case and clean the parts with a metal brush, a special vacuum cleaner.
Dust clogged the mesh, which is located at the bottom of the case. In an open combustion chamber technique, this results in lower thrust. Do not forget to clean.
Incorrect operation of the circulation pump
As a result of uneven operation, a resonance occurs in the system, which leads to extraneous noise. Correct the pump settings.
Turn off the gas valve before starting any work.
Important! If you smell gas, turn off the tap and call the gas service.
Place a gasket under the body to reduce vibration. Regularly service the unit and clean all scale and dirt. This will allow a long and safe operation of the boiler.