How to Solve High Water Temperature When Running AC in Haval H6?
2 Answers
Here are several solutions for high water temperature when running AC in Haval H6: 1. Insufficient coolant: Coolant leakage or low coolant level can cause engine temperature to rise. Check the coolant level and top up if necessary. Recheck after a few days for significant level drop, and locate any leaks if present. 2. Cooling fan malfunction: When the vehicle runs at high RPM, heat cannot be effectively transferred to the antifreeze, affecting heat dissipation and causing antifreeze temperature to rise, potentially leading to boiling issues. 3. Water pump failure: Common pump failures include seized bearings or damaged impellers. Seized bearings are rare, while impeller damage (cracking or loosening from the pump shaft) can slow coolant circulation, leading to engine overheating. 4. Thermostat failure: The thermostat automatically adjusts coolant flow to the radiator based on temperature, regulating the cooling system's capacity to maintain optimal engine temperature. A faulty thermostat may prevent the cooling system from entering full circulation mode, resulting in elevated water temperature.
My own Haval H6 has experienced a rise in water temperature several times when the air conditioning is on, which is quite annoying. The main reason is usually the cooling system not keeping up, as the AC increases the engine load. First, I recommend checking if the coolant is at the normal level. If it's low, top it up with the same type of antifreeze immediately to avoid damage from overheating. Next, observe whether the fan spins normally when the AC is on. If it doesn't, it might be an issue with the fan motor or relay, which needs testing and replacement. Also, dust and debris buildup on the radiator surface can block heat dissipation, so I clean it before driving every week to prevent worsening. If these simple checks don't solve the problem, don't hesitate to take it to a professional repair shop for diagnosis to avoid costly major repairs. Safe driving is the priority—if the water temperature gets too high, don't push it; pull over and seek help.
