How do you know if the solenoid valve of your water heater is broken?

After the water heater is turned on, the combustion is normal, and the ignition indicator light is on, but the ignition continues, and then the ignition stops after about ten seconds, and the combustion stops at the same time.

Water heater is one of the commonly used electrical appliances in our lives, especially in winter, hot water is very important to all of us, washing face, brushing teeth, bathing, etc., are inseparable from hot water, then we know that the water heater is fixed in the bathroom, if it is broken, it is not convenient to remove it for maintenance, on the other hand, the bathroom is their own private place, sometimes embarrassed to let others come close, then some simple troubleshooting skills, and some maintenance common sense, it is very necessary.

After the water heater is turned on, the combustion is normal, and the ignition indicator light is on, but the ignition continues, and then the ignition stops after about ten seconds, and the combustion stops at the same time. Then this situation is that there is a problem with the circuit of the lighter, which is generally the probe in the lighter and the wire is not in good contact, and then in order to prevent the gas from entering the burner and causing harm, so it can not work normally. Then we need to replace the solenoid valve, which can be used after the replacement.

If the water pressure at the outlet is normal, but there is no sound of ignition, then we first check whether the battery is in poor contact or there is no power, if the battery is problematic, you can replace the battery in the attempt. If the battery is replaced and still does not work properly, then it is possible that the main switch of the water control power supply is in poor contact. We need to turn on the hot water, check the water control power switch installed in the lower part of the water heater, with the help of some tools, dial a small iron sheet, if it is normal, it will be ignited immediately, if it still does not work normally, then buy a solenoid valve to replace it.

When turning on the water heater, if you can hear the sound of the fire, but it goes out immediately, it means that the solenoid valve is opened and then closed again, then it is possible that the lighter is broken, and we can buy a lighter and replace it.

If you find that the water pressure is normal when using, but the water pressure of the hot faucet or shower is abnormal, then it is possible that the hot water faucet or shower is dirty, and we only need to clean it up to return to normal.

The solenoid valve is a gas switch with magnetic control, then it is broken in several cases 1, not through 2, unblocked 3, card.

Friend, if the solenoid valve is broken, just like the above person said, but I also have a simple way to let you know how to judge the quality of the solenoid valve, that is, to use a metal thing to contact the solenoid valve, if there is a phenomenon of attraction, then it proves that the solenoid valve is good.

Solenoid valve failure is roughly divided into valve body, and solenoid coil, valve body failure is not tightly closed, not in place to open or not at all action, which can be repaired by manual opening, and then there is the coil, you can observe whether the appearance is burned, smell whether there is a mushy smell, touch whether it is hot, measure the coil value with a table, and compare it with the same original to see if it is the same.

You listen, whether the solenoid valve has a suction sound, that is, a "pop" sound, if there is no sound, it is broken

In the case of the normal operation of the igniter, remove the solenoid valve, turn on the micro switch, and see if the rubber pad of the solenoid valve can be sucked, if it can be sucked, after 10 seconds, the core of the solenoid valve will pop out, so that the solenoid valve is basically no problem. If it can't be sucked, it means that there is a problem with the solenoid valve, it may be that the battery needs to be replaced, or it may be that there is a problem with the igniter, which needs to be further investigated.

After the water is connected, the combustion is normal, and the ignition indicator light is on at the same time, but the ignition continues, and then the ignition stops after about ten seconds, and the burning stops at the same time. This is generally due to a problem with the burn detection loop of the lighter, and most of them are due to poor contact between the probe and the wire. The fault repair and treatment of the solenoid valve of the water heater is recommended to be carried out under the guidance of experienced technicians.

If you turn on the gas water heater and hear the high-pressure start sound of the ignition, and then activate the solenoid valve, the sound sounds, which means that the gas has been turned on, and then the flame can be seen; Hot water also came out. Of course, if you can't hear the sound of the solenoid valve, it means that the solenoid valve is broken.

1. If the solenoid valve of the gas water heater is damaged, it will cause no gas supply, and generally it cannot be ignited.

2. In the case of determining the ignition is normal, remove the solenoid valve (close the air source), and then turn on the micro switch, the igniter will ignite, at this time, gently press the rubber pad of the solenoid valve with your hand, the solenoid valve will be engaged, because there is no combustion, about 10 seconds or so The core of the solenoid valve will pop out, if so, it should be good.

3. If it can't be engaged, it may be that the battery is old or there is a problem with the ignition.

4. The solenoid valve fault is roughly divided into the valve body, and the solenoid coil, the valve body failure is not tightly closed, the opening is not in place or does not act at all, which can be repaired by manual opening, and then there is the coil, which can be observed by whether the appearance is burned, whether there is a mushy smell, whether it is hot to touch, measure the coil value with a table, and compare it with the same original to see if it is the same.

The best way to check the solenoid valve of a gas water heater is to check it manually. In the case of the normal operation of the igniter, remove the solenoid valve, turn on the micro switch, and see if the rubber pad of the solenoid valve can be sucked, if it can be sucked, the core of the solenoid valve will pop out after 10 seconds, so that the solenoid valve is basically no problem. If it can't be sucked, it means that there is a problem with the solenoid valve, it may be that the battery needs to be replaced, or it may be that there is a problem with the igniter, which needs to be further investigated.

Since the solenoid valve is a low-pressure (usually +12V) starting line, if the line is in poor contact or leakage, it may cause the solenoid valve to not operate, so it is necessary to check whether the joints of each wire are in good contact. For the failure of the solenoid valve operation state, it is almost very easy to use a multimeter to measure the advantages and disadvantages of the connecting wire, and then you can replace the solenoid valve or replace the wire.

First of all, it is impossible to check with a multimeter (of course, the circuit breaker is undoubtedly bad, but there is not much difference between good and bad resistance). Secondly, even if the pre-installation test can be properly attached, there is no guarantee that it will be able to be installed normally. It is best to connect it to the ignition on the original machine and then energize it (ensure that there is 3V), and judge it by actual measurement.

I found more than one in the actual maintenance, that is, this solenoid valve can not be used, but it is used normally when it is replaced by another machine.

Experience tells me that the solenoid valve can not be measured with a universal meter, because the solenoid valve is not broken by the coil winding, "the current of the general No. 7 or No. 5 battery is impossible to burn it" There is only one situation, when it is used for a long time, due to the solenoid valve working more times, worn out, even if it is energized, it can not be sucked, I don't believe you can remove the battery valve, press it into half by hand, it can be sucked, but it can not be sucked after installation, so it has to be replaced with a new one, and the oil can only be used for a while, if it is not suction at all, It can only be that the ignition is broken, the chance of the solenoid valve coil burning is zero, and the chance of the wire breaking is also very small! Note that even if it is a new combination, the solenoid valve cannot be sucked in when the water heater is detached and energized, and must be pressed in a little bit, which can be done by hand or otherwise, because it is pressed into the water heater a little bit, and then the magnetic force is enough to suck it in.

1. Use a multimeter ohm to measure the resistance value of the coil to see if it is short-circuited or open-circuited.

2. When the power is on, pay attention to listen, there will be a clicking sound.

3. If possible, you can replace a good one, compare.

The handling method of water heater solenoid valve failure is as follows:1. It may be that the solenoid valve does not work due to the battery being dead, and a new battery needs to be replaced.

2. In the case of a strong exhaust water heater, it may be caused by damage to the circuit board or induction cooker, and it is necessary to repair the circuit board or replace the solenoid valve.

3. The gas water heater may be caused by high air pressure, and it is recommended to replace the pressure relief valve.

4. It is also possible that the igniter of the water heater is broken and needs to be repaired or replaced.

Precautions for water heater maintenance:1. It is necessary to find out the brand and model before you can buy the corresponding accessories.

2. When disassembling and assembling components, disconnect the power supply first, and wear protective measures to ensure personal safety if you want to operate with electricity.

3. When the unplugged connection cable is reinstalled, the tightness of the connection should be checked, and there should be no loosening, otherwise it needs to be re-fixed.