What are the reasons for the Wuling Hongguang's heater not producing heat?
3 Answers
The reasons for the Wuling Hongguang's heater not producing heat may be due to the engine cooling system or the air conditioning not being set to the heating mode. The specific reasons for the heater not producing heat are as follows: Caused by the engine cooling system: If the heater is not producing heat, check if the coolant is sufficient. If the coolant is insufficient, it needs to be refilled. Air conditioning not set to the heating mode: Check the temperature control to see if the air conditioning is set to the heating mode. If it is not set to the heating mode, adjust the switch to the heating mode. Do not turn on the heater immediately after starting the vehicle: When the engine is just started in winter, the radiator temperature is very low. Turning on the air conditioning will not only fail to quickly increase the cabin temperature but also slow down the rise of the water temperature, increasing the engine's burden and accelerating engine wear. No need to turn on the AC button: AC is the air conditioning's cooling switch button, while the heater is produced by the vehicle's operation.
I've been driving a Wuling Hongguang for ten years and often encounter the issue of the heater not producing enough warmth. The most common causes are insufficient or poor-quality coolant, which prevents heat from being transferred. Additionally, the heater core might be clogged—over time, sediment builds up, blocking heat flow just like rust in a water pipe. If the thermostat gets stuck in the open position, it also won’t work properly, as it regulates coolant flow; once it fails, the heater output weakens. If the blower motor has issues, no hot air will come out of the vents. I remember last time my car had this problem—it was freezing in winter. I checked the coolant reservoir myself, topped it up with proper antifreeze when the level was low, and the situation improved immediately. If these fixes don’t work, it’s best to take it to a professional shop to inspect the system’s piping. Don’t delay, as it could lead to bigger issues like engine overheating and damage.
Last winter, the heater in my Wuling Hongguang suddenly stopped working, leaving me shivering on the highway. The cause is often low or leaking coolant, as older cars are prone to fluid loss. Checking is simple: after parking, inspect the coolant reservoir dipstick—top it up if the level is low. Start the car and wait for the engine to warm up, then feel if the heater valve gets hot; if not, the pipes might be clogged. For the blower, listen to see if the fan is running—unusual noises indicate motor failure. Addressing it promptly is safer—don’t risk it like I did, as frost obstructing visibility is dangerous. Regular maintenance, like replacing coolant every two years, keeps the system clear and reduces repair hassles and extra costs.
