Why doesn't the heating water boil up to the set temperature?

Why doesn't the heating water boil up to the set temperature? The weather is getting colder these days. Some users consult wheat, why the heating water temperature of the wall-hung boiler is set at 60℃, and the boiler stops when it burns to about 45℃, and the house is not very warm. What is the reason? 1. When the wall-hung boiler is used for the first time during the heating season, the temperature difference between indoor and outdoor is large, the heat required in the room is large, and the temperature rise takes a relatively long time. The Midis wall-hung boiler is equipped with overtime protection. When the continuous burning exceeds 4 hours, it will stop heating for 3 minutes and then start again. When the wall-hung boiler works for a period of time, this phenomenon will be eliminated. 2. The gas proportional valve fails or is blocked. Most wall-hung boilers use mechanical proportional gas valves to achieve the proportional adjustment between the maximum and minimum to achieve the purpose of controlling the water temperature and stability. When the gas proportional valve fails or is blocked, the proportional adjustment cannot be performed and only the minimum power output is available, and it is difficult to heat the heating water to the set temperature. 3. Low gas pressure In winter, due to the large area of u200bu200bheating, the natural gas supply pressure in some areas is insufficient. When the natural gas supply pressure is lower than the gas supply requirements of the gas valve, the wall-hung boiler will not reach the rated power and the heating will work. The time is prolonged, and the heating water temperature cannot reach the set temperature. 4. The power of the wall-hung boiler selected does not match the room. When the actual heat demand of the room exceeds the maximum output power of the wall-hung boiler, a 'small horse-drawn cart' will appear. It is difficult to heat the heating water to the set temperature. (