When the solar air heater appears that the water is not hot on a sunny day, how can we solve it?
● The reason why the water is not hot on a sunny day in solar air heater:
a. The solar air heater has insufficient lighting. (Solar air heater is facing the wrong direction or has obstructions, smoke pollution, etc.)
b. The water supply valve or solenoid valve of the solar air heater is not closed tightly. (Cold water enters the water tank and the water is not hot)
c. There is a lot of dirt accumulated in the vacuum tube of the solar air heater.
● The maintenance method of solar air heater that the water is not hot on sunny days:
a. Solve the effects of light. (Make the solar air heater face south to remove obstructions, smoke and dust)
b. Replace the water supply valve or solenoid valve.
c. Descaling the solar air heater vacuum tube.




