What are the reasons for high water temperature when the Jinbei air conditioner is turned on?
3 Answers
Here are the detailed reasons for the high water temperature when the Jinbei air conditioner is turned on: 1. Check the coolant: Inspect whether the coolant level is too low, and if so, it needs to be topped up. 2. Check for leaks: If leaks are found in the radiator, water pipes, or pipe connections, it indicates that the high temperature is caused by the leakage. 3. Check if the radiator fan is operating: If the radiator fan does not operate after idling for a while, it indicates a fan malfunction. 4. Weak engine power output: If the engine water temperature is too high and the engine power output has weakened, the vehicle should be stopped immediately, as the high water temperature may have already damaged the engine.
I've been driving a Jinbei minivan for ten years, and it's common to experience high water temperatures when using the AC in summer. Turning on the AC activates the compressor, which requires the engine to work harder, naturally generating more heat. However, if the cooling system can't keep up, the water temperature will soar. Common causes include the radiator fan not spinning or spinning too slowly, possibly due to a faulty fan motor or a blown fuse; insufficient or aged coolant, leading to poor circulation and reduced cooling efficiency; or a radiator clogged with dust and leaves, preventing heat dissipation. Once on a long trip with the AC on, the water temperature nearly hit the red line. I immediately pulled over to check and found the fan was stuck. I recommend keeping an eye on the temperature gauge when using the AC. If you notice anything unusual, stop immediately to check the coolant level and fan operation, then visit a repair shop promptly to avoid engine damage from overheating. Regularly cleaning the radiator and replacing the coolant can also prevent such issues.
It's common in auto repair that JINBEI vehicles experience high water temperature when the AC is on, primarily because the AC compressor increases engine load. The extra workload raises heat generation, and if the cooling system has flaws, the water temperature spikes. Potential causes include malfunctioning or underperforming fans (possibly due to relay failure), insufficient coolant pump pressure slowing flow rate, or an overheated AC condenser indirectly affecting radiator efficiency. For instance, one owner reported high water temperature with AC use—inspection revealed a leaking water pump caused low coolant levels. Recommended practice: Turn off AC after parking to observe temperature changes; if it drops, cooling system issues (fan circuits/pump condition) need inspection. Regular maintenance minimizes such risks, focusing on cooling system and AC components.
