When the gas water heater is in use, there will be some faults. When the power is turned off, the fault is eliminated. Some faults still exist. At this time, we must accurately determine whether there is a problem in that part. So what are the gas water heater failures ? The following decoration home decoration network Xiaobian will bring you the common causes and treatment of gas water heaters for your reference.
What are the common faults in gas water heaters?
Gas water heater failure 1 , water is not hot:
(1) Low gas pressure: gas pipeline is blocked and gas pipeline pressure is low. Self-check gas pipeline is blocked (can be connected from the gas meter to a water heater gas inlet, directly connected to the water heater, such as the water heater can work normally, the pipe from the watch to the water heater inlet is blocked), please gas company Check the gas line pressure.
(2) The water flow is too large: the pipeline pressure is too large and the pipe diameter is too large. It can close the valve of the small inlet pipe and increase the set temperature of the water heater.
(3) Improper setting, should be adjusted in high-grade or winter, and now in mid-range or spring and autumn. Solution: Set it correctly according to the usage method on the manual.
Gas water heater failure 2 , water is too hot:
(1) Low water pressure, small water flow, and blocked water pipes. Change the water pipe to a certain caliber; install a booster pump; clean the water heater inlet pipe filter; adjust the water volume on the water heater to adjust to a large; change the shower, the shower eye should be as large as possible.
(2) Gas pressure is too high, mainly reflected in liquefied gas ( LPG ) . Replace the liquefied gas pressure reducing valve (must be a labor card) and adjust the gas pressure to the required value.
(3) Improper setting, mainly caused by setting the water heater in the high temperature zone. Follow the instructions on the instructions to set it correctly.
Gas water heater failure 3, there is a piece of cold water after the water heater is ignited, and there is a piece of cold water after re-opening water:
This is mainly a characteristic of a strong exhaust water heater, not a malfunction. The strong exhaust air heater is to improve the safety of the user. Before the water heater is ignited, the front cleaning is set. After the water heater is turned off, the cleaning is performed, and the original exhaust gas in the water heater is discharged into the water heater, so that a cold water appears after the water is reopened. .
In addition, due to the distance between the user's faucet and the water outlet pipe, and the water heater to heat the cold water to the hot water takes a certain time, causing a cold water after the water heater is ignited. The user can shorten the period of time, set the water heater first in the high temperature range, and then set the water temperature to the required temperature after the water is hot.
Gas water heater failure 4, fan operation sound:
The new user of the new user does not understand that the inside of the machine is equipped with a blower device, and the sound generated by the motor plus the wind is a certain sound when working. Compared with the strong exhaust type machine, the natural exhaust type machine is equipped with a blower device. The sound generated by the motor plus the wind is not available in the original natural exhaust machine, so the user feels the sound of the machine. sound.
Since the thermostat is a DC variable speed motor, the operation is to adjust the rotation speed according to the actual output heat load of the machine. In addition, the DC motor itself runs smoothly compared with the AC motor, so the motor operation sound is relatively light. The non-thermostat machine uses an AC motor, the motor runs constantly, and the sound is relatively louder. Therefore, the operation of the thermostat is lighter; the operation of the non-thermometer is louder .
Gas water heater failure 5, burning sound:
Mainly the old users who used the natural venting type, they do not understand the sound source of the strong-discharge type water heater: one is closed combustion, (the energy rate of the water heater is closed combustion), because the hot air heated by the burning is trapped in the change In the heat exchanger, a sharp oscillation is generated to make a louder sound than the open burning. There is also an air box principle that amplifies the sound of the combustion in the heat exchanger and through the heat exchanger wall to the space. Second, the strong exhaust machine is equipped with a blower device. The sound generated by the motor plus the wind is not available in the original natural exhaust machine. The sound of the two is certainly much louder than the natural exhaust water heater.
Gas water heater failure 6, vibration sound:
The main reason for the vibration of the machine is that the gas and the combustion air are not well matched, and the flame is separated from the flame, causing the machine to vibrate. Specifically speaking, it is caused by a deviation of the primary pressure. The phenomenon of the flame is that the flame is sometimes separated from the fire and sometimes returned to the fire. This back and forth vibration is a source of vibration. Machine resonance is caused when the vibration frequency of the vibration source is consistent with the natural frequency of the machine or the frequency phase difference is constant.
Gas water heater failure 7, overheated water, poor temperature regulation:
The temperature of the outlet water of the quick water heater is closely related to the water output. When the machine outputs the same power (firepower), the small water output will inevitably cause the water temperature to rise. The water output is relatively low, and the water output is small. When the minimum limit necessary for the normal operation of the machine is exceeded, the water will inevitably be overheated and the water temperature cannot be adjusted at this time.
Gas water heater failure 8, the amount of water is small, causing downtime:
When the water output is small enough to exceed the minimum limit necessary for the normal operation of the machine, it will inevitably cause the water to overheat, which will cause the intelligent machine to display 16 faults; the ordinary machine will cause the temperature relay to work, causing the machine to stop working or stop. Then start again.
Gas water heater failure 9, the amount of water is small, leading to abnormal sound:
When the water output is small enough to exceed the minimum limit necessary for the normal operation of the machine, the internal water temperature of the machine is heated to near the boiling point, and the water pipe wall is subjected to heat convection, and an abnormal sound is emitted.
Gas water heater failure 10, the general machine firepower switching selection does not cause poor temperature regulation:
Due to improper firepower selection and mismatch in water volume adjustment, the outlet water temperature is too hot or too hot. This situation is often caused by the user's understanding of the working principle of the water heater or the wrong thinking is like a boiler bath, the choice is high temperature firepower and then add cold water to water temperature adjustment. There are also users who are based on saving, choosing a small firepower and requiring a large amount of water to use the water temperature is not enough.
Gas water heater failure 11 , the temperature setting of the thermostat is incorrect, causing poor temperature regulation:
Since the user does not understand the performance of the constant temperature water heater, the temperature setting is incorrectly operated. For example, setting the high temperature and adding cold water to the water to adjust the temperature results in poor temperature regulation, and severely causes the display 16 to cause downtime.
Gas water heater failure 12 , set temperature is lower than the outlet water temperature:
There are two main reasons: First, the water quantity control is poor, the water output is better than the heat load capacity of the machine; the second is that the hot water delivery pipeline is too long, the heat preservation is poor, and the heat dissipation is more. Generally, the hot water pipe should be controlled within 5 meters, and non-metallic materials should be used. PPR material pipes can be selected .
Gas water heater failure 13. The water volume is too small to cause the water temperature to be too high:
Such problems often occur when the user does not understand the temperature adjustment system, and the water adjustment lever is reversely adjusted, and the water discharge amount is small, resulting in an excessively high outlet water temperature.
Gas water heater failure 14, the water volume adjustment is too large, causing the water temperature is not high:
Such problems often occur when the user does not understand the temperature adjustment system. The water adjustment lever is reversely adjusted, and the water output is amplified, resulting in a low outlet water temperature and no water.
Gas water heater failure 15, adding excessive cold water, causing flameout:
Because the user wants to achieve large water usage or water volume adjustment operation error, the firepower is turned up or set to a high temperature, and then the cold water is added to the water to adjust the temperature, so that the hot water in the machine is squeezed by the cold water, when the machine is inside The outflow of hot water is reduced by the squeeze flow to less than the machine start flow, and the amount of water entering the water heater is diverted, reducing the amount of water entering. At this point the machine will turn off and shut down.
Gas water heater failure 16, low gas pressure, causing low water temperature:
The air supply pressure is lower than about 80% of the normal pressure. The main cause is the user's gas pipeline blockage, insufficient ignition system pressure, insufficient gauge specifications, and defective valves.
Gas water heater failure 17, gas pressure is too high, causing no fire:
The supply pressure is higher than 30% of the normal pressure , which may cause the machine to ignite or not burn properly. The reason is that the back pressure of the safety solenoid valve in the machine is increased due to the high pressure of the air supply, and it is difficult to open, so the ignition is not possible. If the pressure is too high, the proportional valve may be broken to cause the proportional valve to be damaged, which means that the ignition is not possible.
Gas water heater failure 18 , gas pressure is too low, causing no fire:
Since the primary pressure of the air supply is too low, the flame inside the machine is in a flame-off state, so that the water heater cannot be ignited.
Gas water heater failure 19 , gas pressure is too high, causing machine damage:
If the gas supply pressure is too high, the proportional valve will be subjected to high pressure shock, and the membrane rupture proportional valve will be damaged, resulting in machine damage.
Gas water heater failure 20 , small amount of water, high water temperature:
The starting water pressure or water volume is the minimum water pressure or minimum water amount that can only be used to start the machine. The water volume of the water heater is designed to be 2.8 liters, that is , the machine can start when the machine water reaches 2.8 liters. It is really difficult to see. And in order for the machine to work properly, the water pressure should be between 80 and 500KPa . That is to say, from 0.8 kg to 5 kg of water pressure, the machine's water output reaches 6 to 16 liters.
The above is what is the fault of the gas water heater brought by Xiaobian? The full contents of common faults in gas water heaters, I believe that after reading this article, you have a basic understanding of common faults in gas water heaters. If you want to know more about decoration consultation, please click to enter the decoration knowledge channel .
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