After the gas main valve is turned off, you can still cook but the water heater has no hot water, is

If the main valve is closed, you can't cook on the fire, or it's not a valve, otherwise it's broken.

Classify. Gas valves are widely used, there are many types, and there are many classification methods. The general can be divided into two main categories:

Type 1 Automatic Valves: Valves that operate on their own by relying on the ability of the gas itself. Such as check valves, regulating valves, pressure reducing valves, etc.

Oxygen quick shut-off valve.

The second type of actuation valve: a valve that controls the action with the help of manual, electric, and pneumatic movements. Such as gate valves, globe valves, throttle valves, butterfly valves, ball valves, plug valves, etc.

In addition, there are several ways to classify valves:

According to the structural characteristics, according to the direction of the shut-off relative to the movement of the valve seat, it can be divided into:

1.Truncated door: The shut-off moves along the center of the seat.

2.Gate shape: The shut-off moves along the center of the vertical seat.

3.and spherical: The closure is a plunger or ball that rotates around the centerline of itself.

4.Swing shape: The shut-off rotates around the shaft outside the seat.

5.Disc: The disc of the shut-off that rotates around the shaft inside the seat.

6.Spool valve: The shut-off slides perpendicular to the channel.

According to the type of structure, it is mainly divided into:

Plug valves, gate valves, globe valves, ball valves – used to open or close the gas flow in pipelines. Check valves (including foot valves) – used to automatically prevent gas backflow in the pipeline.

Throttle valve – used to regulate the flow of gas in the pipeline.

Pressure Reducing Valves – Used to automatically reduce the pressure of gases in pipelines and equipment. When the gas passes through the gap of the valve disc, resistance is generated, resulting in pressure loss, so as to achieve the purpose of decompression.

According to the use, according to the different uses of the valve, it can be divided into:

1.Interrupting: used to connect or cut off pipeline gas, such as globe valves, gate valves, ball valves, butterfly valves, etc.

2.Check use: used to prevent gas backflow, such as check valves.

3.Regulation: It is used to regulate the pressure and flow of gases, such as regulating valves and pressure reducing valves.

4.For distribution: It is used to change the gas flow direction and distribute gas, such as three-way cocks, distribution valves, spool valves, etc.

According to the driving mode, according to different driving modes, it can be divided into:

1.Manual: With the help of handwheels, handles, levers or sprockets, etc., driven by manpower, when the transmission of large torque, it is equipped with worm gears, gears and other deceleration devices.

2.Electric: Driven by a motor or other electrical device.

3.Pneumatic; Driven by compressed air.

According to the connection mode with the pipeline, it can be divided according to the connection mode between the valve and the pipeline;

1.Flange connection valve: The valve body is flanged and flanged to the pipeline.

2.Threaded connection valve: a valve with an internal or external thread in the valve body and a threaded connection to the pipeline.

3.Welded connection valve: The valve body has a welded mouth and adopts a welded connection with the pipeline.

4.Clamp connection valve: a valve with a clamp port on the valve body and a clamp connection with the pipeline.

5.Ferrule connection valve: a valve that is connected to a pipeline by ferrule.

The gas main valve you said is turned off, and it can still be ignited in the future, which means that the gas main valve is useless, and the water heater is turned off and not turned off, and there is no hot water, this is a problem, okay, check it.

1. Observe the self-closing valve on the gas pipeline, if the self-closing valve is outside, it is normal gas supply, and it is necessary to detect whether the gas stove and water heater are faulty. 2. If the self-closing valve is closed, try to pull it out, if it continues to inhale automatically, it is in a state of gas stopping. Possible reasons are:

gas pipelines stop supplying gas; The natural gas meter battery has no charge; There is an air leak somewhere.

The reasons why a gas water heater catches fire and goes out are as follows:

1. First of all, look at the water pressure, the water pressure is too small, the water heater will not work, as long as you open the faucet to see if the water is smooth, it means that the water pressure is not smooth.

2. Look at the air pressure, the air pressure is not normal and can not be heated, if it is a cylinder, but also to see if it is a problem with the pressure reducing valve, if you use a rubber tube to see if it is folded and deflated, resulting in a gas path.

3. Consider whether there is a problem with the pulse igniter, its high-voltage circuit cannot work normally, and can only form a high voltage for a short time, so it will also ignite for a short time.

4. If it is battery-powered to ignite, consider whether the battery is out of power, and if there is a problem with the two, only replace it.

5. Whether the wind pressure switch is faulty can be corrected by adjusting the "+" screw on its back.

6. Consider the feedback pin and its connecting cable, which can be eliminated by replacing the feedback pin and reconnecting the feedback cable.

7. Finally, there is a problem with the CPU processing unit, which can only change the circuit board.

Failure to turn off the ignition is a very hidden fault that should be repaired by removing the limescale ring from the ejector pin. The water flow area of the gas water heater is bounded by the hexagonal screw on the thimble, and there is an O-ring sealing ring in the center of the hexagonal screw, and there is no water on the left side of the screw. Since the water heater is not working most of the time, the impurities in the water body will gradually form a ring-shaped "hump" on the outside of the O-ring, and this hump will grow day by day until it can pass through the O-ring and cannot return smoothly, the circuit and gas path of the water heater cannot be cut off, so that there will be a dangerous failure of stopping the water and not extinguishing the fire.

The removal of the limescale ring is very simple, just use a screwdriver to remove the limescale ring. On the one hand, many maintenance workers do not understand this principle, and on the other hand, based on the reason that "replacement parts are easy to charge", they often solve the problem by replacing parts.

Hello, here are a few ways to do it. 1. The micro switch is broken. The water switch is broken, and I believe in God.

The on/off valve is broken (not closed tightly). 2. Gas leakage is a fatal problem, which must be dealt with by professionals, turn off the power immediately, and find maintenance personnel to overhaul it in time. 3. To repair the gas water heater, the basic safety function of the gas water heater is to have the function of preventing dry boiling, and automatic extinguishing of the ignition, and if it lasts for more than half an hour, it will be automatically turned off.

4. If you have a valve at the inlet of the gas water heater before repairing, close the valve.

Summary. Hello, the gas water heater at home, turn off the switch of boiling water, it will automatically ignite the boiling water again

Due to the difference in language description and understanding, the switch here may be the hot water switch under the gas water heater; It could also be the panel's automatic water outlet switch; Or the water outlet switch of the shower, which can cause such a failure.

1.Automatic water outlet switch of the panel: This kind of switch is mostly light touch type or panel induction type, due to long-term use or water ingress, humid air environment and other reasons, the contact of the internal switch is short-circuited or the induction plate fails, and the automatic ignition of boiling water can occur; When this happens, the induction circuit board can be dried with a hot air gun; Replace the tactile switch;

2.Outlet switch for shower: This type of switch is mechanical, and the above problems can only be caused by the failure of the switch due to the rupture of the internal mechanism. In case of failure, the shower can be replaced in time;

3.Hot water switches: This type of switch will not have such a failure in non-bathing; But when someone is in the bath and deliberately does not close the water valve, but directly closes this switch, under normal circumstances, there should be no hot water, only cold water.

However, if the internal spring of this switch is weak or displaced, the same fault described above will occur. At this time, you can directly replace this boat-shaped switch.

The gas water heater is turned off but still ignition.

Hello, the gas water heater at home, turn off the switch of boiling water, it will automatically ignite the reason for boiling water: due to the difference in language description and understanding, the switch here may be the hot water switch under the gas water heater; It could also be the panel's automatic water outlet switch; Or the water outlet switch of the shower, which can cause such a failure. 1.

Automatic water outlet and balance switch of the panel: This kind of switch is mostly light touch or panel induction, due to long-term use or water ingress, humid air environment and other reasons, the contact of the internal switch short circuit or induction plate failure, automatic ignition and boiling water can occur; When this happens, the induction circuit board can be dried with a hot air gun; Replace the tactile switch; 2.Outlet switch for shower:

This type of switch is mechanical, and the above problems can only be caused by the failure of the switch due to the rupture of the internal mechanism. In case of failure, the shower can be replaced in time; 3.Hot Water Switch:

Such switches do not fail in non-baths; But when someone is in the bath and deliberately does not close the water valve, but directly closes this switch, under normal circumstances, there should be no hot water, only cold water. However, if the internal spring of this switch is weak or displaced, the same fault described above will occur. At this time, you can directly replace this boat-shaped switch quietly.

Precautions: This kind of failure has potential safety hazards, because it is easy to cause accidents such as floods or fires when this happens when unattended. At the same time, it is also a waste of resources. In case of such a situation, He Xiangjing should deal with it in a timely manner to ensure safety.

Causes and solutions: 1. The thermal electrode is faulty. Workaround:

Check the fire electrode and wipe the surface clean with sandpaper. 2. The control line is faulty. Workaround:

Find a thicker copper core wire, replace the fire detection electrode, try it, can it be normal, if you can, buy a fire detection electrode of the same type online to replace.