Elysee water temperature problem! Urgent! ! ! ! ! Ask the great god for guidance

Without seeing the real car, it is impossible to determine the cause of the failure just by describing the car. Check the temperature control switch and the box position in the figure.

There are two drain valves. Our factory originally met a Fukang 988. The warm air is not hot, the water temperature, electric fan, temperature control switch and heater are all normal, but the warm air is not hot. Finally, it was found that there was a crack on one of the two bottle caps, and antifreeze was slightly leaked, which was solved after replacement (if the valve cap was not used).