Jiangling clouds and warm air are not hot, why?

1 Check whether the thermostat is installed; 2. Check whether the warm air hot and cold water valve is open; the water valve is installed on the water inlet pipe from the machine to the warm air small water tank; 3. Check whether the cold and hot air valves of the bellows are open in place; 4. Check whether the evaporation box of the air conditioner is blocked, because the fan blocked by the evaporation box will reduce the air volume and the heat cannot be taken out.