How to maintain the gas water heater? In real life, water heater is an indispensable electrical appliance in family life. Nowadays, many people prefer gas water heaters with more complete functions. The following is the maintenance method of gas water heater.
How to repair the gas water heater 1 1? The power line of leakage protection tripped and could not be reset. Cause analysis: the over-temperature protector tripped, the circuit components leaked electricity, and the leakage protection plug was broken. Maintenance method: check whether the overtemperature protector and thermostat trip, reset the power supply, check whether the leakage switch can be reset and whether the water heater can work normally, or remove the overtemperature protector and thermostat and measure with a multimeter. Whether the fracture is normal or not, if so, it can be judged that the temperature setting of the overtemperature protector or thermostat may change and need to be replaced.
2. The indicator light of the leakage protection power cord is on, the indicator light of the water heater is off, and there is no hot water. Cause analysis: whether the thermostat is on, whether the cable connector is loose or broken, and whether the working voltage of each component is normal. Maintenance method: check whether the temperature control knob of the thermostat is set at the high temperature position; Check whether the power cord and connecting wires are loose or disconnected; Use multimeter AC250V to measure whether the working voltage of power cord, connecting wires and components is normal. 220 volts.
3. The indicator light of the leakage protection power cord is on, but the indicator light of the water heater is off, and there is hot water. Cause analysis: the thermostat is insulated, and the power indicator wire is connected, indicating that the voltage is normal. Maintenance method: check whether the thermostat is insulated, put hot water and see if the indicator light is on; Check whether the indicator cable is properly connected, loose or disconnected.
4. The power indicator of the water heater is on, and there is no hot water. Cause analysis: the outlet pipe of the mixing valve is blocked, the plug of the electric heating pipe is disconnected, the working voltage of the electric heating pipe does not work, and the electric heating pipe is burnt out. Maintenance method: contact the water outlet pipe of the mixing valve and the position of the heating plate to see if there is fever. If the heating time is too short, please unscrew the outlet pipe to see if there is hot water. Check whether the connecting plug of the electric heating pipe is loose or disconnected. The multimeter measures whether the cable is conductive.
How to repair the 2 1 battery of gas water heater because it is too old?
When the battery is too old, the voltage cannot meet the requirements of ignition. At this time, it is necessary to check whether the power indicator light is on. If it is not on, it is necessary to replace the new battery. However, when replacing the battery, we must pay attention to the method, and do not use brute force to avoid damaging the accessories in the battery box and causing more harm.
2. Igniter failure
If there is no spark and ignition sound during ignition, there may be something wrong with the igniter. At this point, it is necessary to repair or replace the new igniter. Try to light it after replacement to see if it is normal. If it is still abnormal, it may be another fault. We need to find the cause first and treat it with the right medicine.
3, the water pressure is too low fault
In the process of ignition, if sparks and fire sounds appear, but they go out quickly, it may be that the water pressure is too low. At this time, first check whether the water pressure of the faucet is too low. If it is too low, you need to install a booster pump to increase the pressure, so as to return to normal.
4, induction or ignition porcelain needle failure
If there is no fire sound or spark during ignition, there may be something wrong with the induction or ignition needle, and it is necessary to reposition or replace the induction or ignition needle at this time.
5, solenoid valve failure
In the ignition process, if only the knocking sound is heard, but the magnetic sound absorption of the solenoid valve is not heard, it may be that the solenoid valve is damaged and aging, and a new solenoid valve needs to be replaced. It is also possible that there is something dirty in the solenoid valve, which blocks the air valve. At this point, it is necessary to clean the solenoid valve to make it return to normal.
How to maintain the gas water heater 3 1? If the water valve is turned on, the pulse will not ignite: add a booster pump; Remove sundries; Reinstall the battery; Reinstall or replace a new battery; Reinstall the inlet and outlet pipes.
2. After the water valve is opened, pulse ignition will not happen: the water valve is repeatedly turned on and off to exhaust until it catches fire; Replace the battery with a new one; Turn on the air switch completely or clear the blockage; If the gas type does not match, it is prohibited to use it; Replace the valve seal; Check and adjust the output pressure.
3. sonic boom appears during ignition: adjust the pressure of the cylinder pressure reducing valve; Replace the battery with a new one; Remove dirt; Adjust the ignition needle installation position; Remove debris from the air outlet and nozzle blockage.
4. The water is not hot enough during use: replace the qualified pressure reducing valve; Remove foreign bodies; Fully open the main switch; Replace the gas nozzle and gas pipe; Prohibit the use; Semi-close the inlet valve to reduce the water pressure.
5. Be sure to turn off the fire during use: adjust the water knob to a suitable position or a small water level; Should be reinstalled to ensure adequate air replenishment; Replace the new battery or reinstall the battery; Adjust the water knob to the proper position or the submerged position.
6. The flame is yellow with black smoke: remove dirt and carbon; Replace cylinders with liquefied gas; Should be reinstalled to ensure adequate air replenishment; Prohibit the use; Adjust or replace the qualified pressure reducing valve.
Four principles of how to maintain gas water heaters
The principle of gas water heater is easy to understand. When cold water enters our gas water heater, it will pass through the water-vapor linkage valve body. Under the pressure of cold water flow, the water-gas linkage valve will be "pushed away" by water. At this time, the micro switch of DC power supply will directly start the pulse igniter. Therefore, the electromagnetic valve for gas transmission will be opened and the pulse igniter will start to ignite.
After the ignition is successful, the gas water heater will enter the working state for about eight seconds! Of course, if the cold water pressure is insufficient during this operation, the pulse igniter will be turned off. If the detector senses such a situation, it will automatically cut off the power supply, so the user need not worry too much. We only need to turn on the gas water heater again, then we can bring cold water into the steam-water linkage valve body again and continue to ignite hot water.
Maintenance skills
1. The gas water heater won't turn on: change the battery again.
2. Solenoid valve squeaking: If the solenoid valve is aging, we need to replace it, but if it is caused by pressure, we need to replace the gas cylinder. Of course, if there is something dirty in the air valve, it will also cause the "creaking sound" of the solenoid valve, so it should be cleaned up.
3. The water pressure sounds like a fire, otherwise it will go out immediately: we need to check the water pressure of the faucet, and of course we should stagger the water peak period to check it!
4. Exhaust pipe damage: If there is a blockage problem, we need to clean the exhaust pipe and reinstall it.
5. Valve seal corrosion: Open the valve seal to see which part is corroded, and then buy new parts to replace it before it can be used normally.
Gas water heaters are different from solar water heaters. The former uses gas as energy substance, while the latter uses sunlight as energy substance. The gas water heater is very convenient to use, and we can use it directly without waiting for the process of boiling water. This kind of gas water heater occupies a very small area and has won the love of many people because of its "petite".