Common Malfunctions and Maintenance Methods of Low Temperature Preheaters in Chi

When the heater is installed for the first time, due to the lack of oil in the heater oil pipe, the heater may not work properly at once. After several operations, it can work normally. The ignition plug and fuel evaporation net generally do not need to be cleaned, but if the heater drips oil and emits smoke that cannot burn, the electric plug and evaporation net need to be removed, the carbon deposits on the evaporation net cleaned, and reinstalled in place before turning on the heater. If the liquid heater cannot be filled with water (coolant) in the pipeline after changing the coolant or adding water each time, and there is air present, it is easy to cause the pipeline circulation to be blocked, which may cause the engine water tank to boil, the heater to overheat, and other pipelines to not heat up. In this case, first turn on the engine for forced circulation and continuously replenish the antifreeze. Then, turn on the air release switch of the heater and pipeline to release the gas in the pipeline. Generally, this can solve the problem of poor pipeline circulation. Also, be careful not to have any major bends in the pipeline, otherwise the pipeline will not circulate properly. If the water circulation of the heater is not smooth during use, the temperature of the heater body will be too high. At this time, the manual reset thermal insurance of the heater will automatically disconnect, stop the oil supply, and gradually cool down the body. If this situation occurs, please check if the heater pipe is unobstructed and if the water pipe is compressed. Then press the thermal safety reset button in the center of the rubber cap to restart the machine. If the heater does not ignite properly, please use a low gear ignition. If the indicator light does not light up when the heater switch is turned on, please check if the main power is turned on, if the heater fuse is blown, if the wire harness contact is good and firm, and if the control box is damaged. If the control board still cannot work normally or the status indicator lights flash randomly, please check whether the power supply is stable, whether the capacity of the stabilized power supply is sufficient, and whether the control box is damaged; If the heater indicates that it cannot burn or burns out, please check if the heater is burning. If it can burn, please check if the flame sensor and control box are faulty. Please troubleshoot the remaining faults according to the status of the fault indicator light. If the heater cannot burn or burns unstably, and the exhaust port does not drip oil or smoke, it is necessary to check whether the oil pump and pipeline are blocked, loose, or leaking air. If the heater burns and emits smoke, please check if the combustion air inlet and exhaust pipe of the heater are unobstructed, and if there is any carbon buildup in the exhaust pipe. The fault can be eliminated by adjusting the altitude compensation knob to clean the carbon deposits inside the heating device.