First confirm whether the bathroom symbol in the upper left corner of the wall hanging furnace panel is flashing, and then confirm whether the air supply switch is open, if there is no problem, you can directly open the cover, touch the small board with your hand to change both sides, if both sides are cool, it is the three-way valve failure did not turn to the hot water state, replace the three-way valve can be solved.
If the three-way valve is normal, touch the small plate to change two sides, one hot side is blocked or damaged.
Most of them are caused by the plate heat exchanger blocked, turn off the water refill valve, water pressure relief, and carefully remove the plate on the wall hanging furnace.
2 If you open the hot water faucet in the heating state, the cold water comes out, and the running bathroom icon does not blink, it may be caused by the failure of the flow sensor, it must be replaced in time.
3 If the domestic hot water is hot and cold, it cannot be constant, basically because the water flow is not stable or the gas pressure is unstable, resulting in water temperature fluctuations, and the regulator can be increased.
1, the home wall hanging furnace domestic water is not hot, may be because the water pressure is unstable, and then make it not enough pressure, resulting in water is not hot.
At this time, we must first check whether the water supply valve above the wall hanging furnace has closed it tightly, if its valve is not closed, and the floor of the home is too high, it is likely to be because the tap water pressure is not stable or too low, resulting in a part of its water pressure loss.
2, it is also possible that the temperature above the wall hanging furnace is too high. If we set the temperature beyond its own heating temperature, it will cause the wall hanging furnace to stop heating itself. And it will not be heated again until the water temperature drops to a certain temperature, so it will feel that the water is not hot at this time.
Reason: too much scale.
When the wall hanging furnace is used, it is necessary to constantly fill new water, and the water quality of tap water in northern China is hard, resulting in the scale accumulation on the inner wall of the heat exchanger, the pipe diameter is becoming thinner and thinner, and the water flow is not smooth, which is also one of the reasons for the hot and cold domestic water.