Why does the water temperature rise slowly?
1 Answers
Slow rising of water temperature indicates a malfunctioning thermostat. The thermostat is installed on the water inlet pipe of the heat exchanger, serving to maintain a constant water temperature. It continuously monitors the coolant temperature in the engine, keeping the water temperature around 80 to 90 degrees Celsius to ensure the engine operates within the optimal temperature range. The solution for slow water temperature rise is to first check if there are issues with the cooling system, such as blocked louvers, deformed fan blades, or short circuits in the water temperature sensor and its circuit. The thermostat can be removed and inspected by placing it in water at different temperatures to observe its opening behavior. If it fails to open and close properly, the thermostat should be replaced.