Common faults of gas water heater maintenance of w

2022-07-22
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It can be said that there will be no perfect things in the world, even after the transformation of human wisdom. Because of this, our life is more interesting. If you are trying to become an electrical repairman

it can be said that there will be no perfect things in the world, even after the transformation of human wisdom. Because of this, our life is more interesting. If you are trying to become an electrical repairman. It will be fun to try to eliminate the daily accidents of gas water heaters. Today we will analyze the common accidents of gas water heaters? Gas water heater maintenance

common troubleshooting of gas water heater

first, the ignition is not smooth

the main reason why the ignition is difficult or does not ignite is the carbon deposition between the fire nozzle and the electric heater, or the fouling of the water valve filter screen. Cleaning method: check the fire nozzle and electric heater. If carbon deposits are found, clean them up; If the water valve filter screen is dirty, unscrew the water inlet pipe, take out the filter screen and clean it with water, or clean it directly on the pipe, and then install the water inlet pipe after cleaning

second, incomplete extinguishment

incomplete extinguishment will lead to the increase of harmful gases and serious environmental pollution. The main reason is the infarction of the thermal AC and the main extinguishment. Cleaning method: check that the heat exchanger enters the extinguisher, and stop cleaning to make it unobstructed

III. the air valve cannot be opened

after the water valve is opened, as long as there is an open fire, there is no fire for boiling water. The main reason is that the tympanic membrane of the air outlet nozzle breaks, and the air valve cannot be pushed open. Cleaning method: buy a new tympanic membrane and replace it. During the replacement process, avoid installing the hollow screws on the tympanic membrane upside down, otherwise, replace the new tympanic membrane and do not open the air valve

IV. the copper tube with burning leakage

is the most vulnerable to damage, which is the copper tube directly above the open flame. The main reason is that the management wall of the copper tube was burned into a flaw under the condition of water supply failure, low water pressure or long-term open fire. Cleaning method: when in urgent need, temporarily use a fuse to plug the eye. After use, remove the gas water heater, drain the water in the water pipe, and weld the leakage hole firmly with an electric soldering iron. In order that the place will not be burned out in the future, an iron sheet can be installed at the copper pipe directly opposite the long-term open fire to block the long-term open fire. In this way, the copper tubes here can be named for 3-5 years

v. fouling of heat storage sheet

fouling of heat storage sheet will affect heat absorption and ventilation. The main reason is that it takes a long time to use and the indoor air is not circulating. Sweeping method: remove the ash scale between the heat storage blades. If the ash scale is too thick, grind the hacksaw blade into an inclined knife shape, scrape the ash scale quietly, and blow the scraped ash scale clean with a bicycle air pump. Finally, you need a hacksaw blade or other tools to move the heat storage blades to the average distribution, so as not to affect the heat storage and ventilation

to complete the successful installation of the gas water heater, this is also a skill. You can operate according to the following installation steps

1. Installation position:

it is strictly forbidden to install the gas water heater in a closed room. Because a large amount of oxygen is consumed when the water heater is used, the room should have an air inlet channel of not less than 200cm2 when the water heater is working; Do not install it in the center where strong wind can blow, otherwise the flame of the extinguisher will be extinguished or incomplete extinguishment will occur; Keep away from stoves, inflammable and dangerous goods, water heaters, gas meters and gas stoves, and the net distance between them shall not be less than 300mm; The space width in front of the water heater shall be greater than 80cm in the center where the necessary device of the water heater is convenient for operation and maintenance and is not easy to be collided

2. The installation height of the water heater should be equal to the height of the fire observation hole of the water heater and the human eye:

generally 1.5m from the air; When installing the water heater, the two sides, top and bottom should be more than 5cm away from the flammability data; The wall on which the water heater is installed should be fire-resistant or with heat insulation board. If the device is not on the fire-resistant wall, it should be padded with heat insulation board of more than 2cm; The exhaust duct should be more than 3cm away from the wall or ceiling without heat insulation. If the wall or ceiling has a heat insulation layer of more than 2cm or is heat-resistant, the exhaust duct should be taken as 0cm device. It is strictly prohibited to install the water heater in a sealed cabinet; The upper part of the water heater shall be free of open power lines, electrical equipment and combustibles, and the net distance between the water heater and electrical equipment shall be greater than 300mm; When designing the position of smoke exhaust pipe and water heater device, the length of exhaust flue must be shortened as much as possible

3. It is strictly forbidden to install the gas water heater in the bathroom

4. Precautions for embedded devices:

the gas water heater stop device on the criterion is in the cabinet. If the user has a special request, the following criteria must be followed: the surface of the hanging water heater should be fire-resistant data, and if it is combustible data, it should be provided with a heat insulation board of more than 2cm; If the surface of the hanging water heater is fire-resistant data, the water heater can be directly hung; The gap between the two sides, top and bottom of the water heater and the cabinet shall not be less than 5cm; There is a ventilation area of not less than 200cm2 at the bottom of the cabinet; The smoke exhaust duct should be separated from the flammability data (cabinet, ceiling, etc.) by more than 3cm; If there is a thermal insulation layer of more than 2cm or heat-resistant data, take 0cm device for the exhaust flue; Inform users that they must open the cabinet door when using the water heater

5. Precautions for flue device:

the forced drainage water heater must have 220V AC power supply (voltage between 185-245v), and the grounding wires of the three power sockets must be grounded to ensure good grounding; The total length of the smoke exhaust pipe shall not exceed 5m, the number of turns shall not exceed 3, and there shall be no air leakage at the interface; The turning angle of the smoke exhaust pipe must be > 90°, Transition fillet is required

6. Precautions for gas pipe device:

select high-quality and qualified rubber pipe or rigid pipe and gas pressure reducing valve; The length of rubber pipe for liquefied gas shall not exceed 2m, and the rubber hose and air inlet joint shall be fixed with clamps; Artificial gas and natural gas products should use ≥ G1/2“ Hard pipe (steel pipe or aluminum plastic pipe); The air inlet joint connecting the water heater must have a sealing ring, and it is strictly forbidden to use raw tape to replace it (except for pipe threads) to ensure that the connection does not leak; Before installing pipeline gas products, you should contact harmonic gas company or the corresponding department with pipeline modification qualification to serve the users at the same time, install the gas pipeline and water heater at one time, and debug successfully

7. Precautions for hot and cold water pipe installations:

install a gate valve near the water inlet pipe of the water heater so that the water source can be turned off when the machine is repaired or not in use; A valve is also installed near the shower head in the bathroom for convenient use

the relevant information about water heater maintenance is introduced here. I hope this article is helpful to you. If there is anything else you don't understand, you can leave a message to Xiaobian below, and we will answer it for you as soon as possible

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