1. Air shortage in water heater: Air shortage may be one of the main reasons for the flashing of flame lamp. If the gas is insufficient and the combustion is incomplete, the flame will flicker. This may also lead to the reduction of heating efficiency of water heaters and the toxicity of exhaust gas emissions.
2. Flue problem: The flue of the water heater may not be smooth due to dust accumulation or other reasons, resulting in unstable flame. Dust accumulation in the flue of water heater will lead to poor smoke discharge, or smoke will flow back indoors, which will seriously affect the health of residents.
3. Fire and blowhole problem: The fire and blowhole of the water heater may be blocked due to thermal expansion and contraction, pollution and other reasons. This will lead to unstable flame, and then affect the use effect of water heater.
4. Heat exchanger problem: The heat exchanger of the water heater may fail or corrode, resulting in incomplete combustion and unstable flame. Need to be repaired in time.
5. Safety valve problem: The safety valve of the water heater may also fail. If the safety valve is not closed correctly or there is air leakage, the flame will be unstable.
In a word, the flashing of the flame lamp of the water heater may involve many problems. If the flame of the water heater at home flashes, find a professional to check and repair it in time as soon as possible to ensure the safe use of warm water at home.