After a long period of use, any home appliance will have some faults more or less, and most users do not know how to troubleshoot some daily faults. In addition, natural gas water heaters often have minor glitches during daily use. So how much do you know about gas water heater repair ? Here we come to analyze what are the common failures of natural gas water heaters? How to solve these problems? And gas water heater installation method.
Natural Gas Water Heater Troubleshooting
First, the ignition is not going well
The main reason for the difficulty of ignition or ignition is the carbon deposition of the fire nozzle and heater, or the fouling of the water valve filter screen. Cleaning method: check the fire nozzle and heater, found carbon deposit, clean; if the water valve filter gauze fouling, you can unscrew the inlet pipe, remove the filter gauze water cleaning, can also be cleaned directly on the pipeline, after cleaning Then install the inlet pipe.
Second, extinguishment is incomplete
Extinguishing incomplete will lead to increase of harmful gases and serious environmental pollution. The main cause is the heat exchanger and main extinguishment. Cleaning method: Check the heat exchanger into the extinguisher, and stop cleaning to make it smooth.
Third, the valve can not open
After the water valve is opened, as long as the fire is open, there is no fire to boil water. The main reason is that the tympanic membrane of the outlet nozzle breaks and the air valve cannot be opened. Sweeping method: purchase a new tympanic membrane and change it. During the change process, avoid installing the hollow screws on the tympanic membrane. Otherwise, replace the new tympanic membrane and do not open the valve.
Fourth, copper pipe leakage
The most vulnerable to damage is the copper tube that is directly above the long open fire. The main reason is that the management wall of the red copper tube is burned in a situation where the water is stopped, the water pressure is low, or the long open flame is not turned off for a long time. Sweeping method: When in emergency, you can temporarily block the eyes with a fuse. After use, the gas water heater can be unloaded, the water in the water pipe can be drained, and the soldering iron can be used to secure the leaky eyes. In order not to be burned out later, a piece of iron may be used to block the long open flame at the copper pipe that is facing the open fire. In this way, it is possible to name the copper tubes there for 3-5 years.
Fifth, heat storage plate scale
Accumulation of heat storage chips will affect heat absorption and ventilation. The main reason is that it takes a long time to use and indoor air does not circulate. Sweeping method: Clear out the dirt from the heat storage film. If the grime is too thick, you can grind the hacksaw into a slanting knife. The prize grinds cleanly and cleanly, and the blown dirt is blown clean with a bicycle pump. Finally, the use of hacksaw blades or other tools is required to distribute the heat storage sheet to the spread evenly to avoid affecting heat storage and ventilation.
Gas water heater installation
To complete the successful installation of the gas water heater, this is also a skill, you can follow the installation steps below to perform the appropriate operation.
1, the installation location:
Gas water heater is forbidden to be installed in a closed room. Since the water heater consumes a lot of oxygen when it is used, the room should have an air intake passage of not less than 200cm2 when the water heater is working; do not install in the center where strong wind can blow, otherwise it will extinguish The flame of the device is extinguished or incompletely extinguished; the distance between the water heater and the gas meter and the range of the gas stove must not be less than 300mm apart from the stove, flammable and risky articles, and the water heater must be installed at the center where the operation and maintenance is convenient and not easily affected. The width of the space before the water heater should be greater than 80cm;
2. The installation height of the water heater is appropriate to match the height of the water heater and the eye height:
Ordinary distance from the air 1.5m; water heaters installed on both sides, top, bottom should be more than 5cm from the flammability data; installed water heater wall should be fireproof data or with insulation board, if the device is not fire-resistant wall should be more than 2cm pad Insulation board; exhaust ducts should be spaced more than 3cm above the wall or ceiling without heat insulation; if the wall or ceiling has 2cm or more insulation or heat resistant material, then the exhaust duct shall take 0cm, it is forbidden to install the water heater. Inside the sealed cabinet; the upper part of the water heater shall not have open lines of electricity, electrical equipment and flammable materials, and the net interval of water heaters and electrical equipment shall be greater than 300mm; the length of the flue gas duct must be as long as possible when designing the position of the flue gas exhaust pipe and water heater. shorten;
3, it is forbidden to install the gas water heater in the bathroom
4, embedded device Note:
The gas line water heater suppression device is in the cabinet. If the user has special requests, he must follow the following guidelines: The surface of the water heater should be fire-resistant. If it is flammable, it should be more than 2cm. If the surface of the water heater is fireproof, the heater can be directly mounted. Water heaters on both sides, top, bottom and cabinet clearance is not less than 5cm; cabinets have a ventilation area of ​​not less than 200cm2; exhaust ducts should be separated by flammability data (cabinet, ceiling, etc.) 3cm or more; if more than 2cm insulation layer Or for heat-resistant data, the exhaust duct takes a 0cm device; inform the user that the cabinet door must be opened when using the water heater.
5. Flue device precautions:
Strong row of water heaters must have 220V AC power (voltage between 185-245V), three power socket ground wire must be grounded, and ensure good grounding; exhaust pipe can not exceed the total length of 5m, the number of turns should not exceed 3 times, And the interface does not leak; exhaust pipe turning angle must be> 90 °, must have a transition fillet.
6, gas pipe device Note:
Choose high quality qualified rubber tube or rigid pipe and gas pressure reducing valve; the length of rubber tube for liquefied gas cannot exceed 2m, and the rubber hose and air inlet joint are fixed with clips; artificial gas and natural gas products use ≥G1/2 “The hard pipe (steel pipe or aluminum plastic pipe); connecting joints of the water heater must have a sealing ring, it is strictly forbidden to use raw tape instead (pipe thread) to ensure that the connection does not leak; prior to installation of pipeline gas products, should contact Harmony Gas Company or the corresponding department with pipeline modification qualifications will serve the customers at the same time. The gas pipelines and water heaters will be installed once and successfully.
7, cold and hot water pipe device Note:
Install a gate valve at the appropriate location near the inlet pipe of the water heater so that the water source can be turned off when the machine is being repaired or when the machine is not in use. A valve is also installed at the proper location near the shower head of the bathroom.
The above about natural gas water heater repair and gas water heater installation is briefly introduced here, I hope to help you. For more information, please visit this website. Stay tuned.
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