How to change the heater switch in Futian Sapika?

Then start the car, wait for the water temperature to come up, and try by hand whether the two warm water pipes from the engine room to the cab are the same temperature. If the temperature is the same. This is the panel switch. If the temperature is different, the circulation of the heating box may be bad or blocked. Check whether the air conditioning fan is normal. The steam heater depends on the engine water temperature. When the water temperature was low at first, there was no heater.