What is the reason for the fan running continuously when the water temperature is not high?

1 Answers
DerekRose
07/30/25 6:26am
The reasons for the fan running continuously when the water temperature is not high are: 1. Failure of the cooling fan assembly or the cooling fan circuit; 2. The impeller of the engine water pump is detached from the shaft or the water pump is damaged; 3. Faulty water temperature sensor. Solutions for the fan running continuously when the water temperature is not high: 1. Inspect the fan circuit; 2. Replace the water pump and water temperature sensor. Reasons for the engine water temperature rising include: 1. Leakage in the cooling system or insufficient coolant; 2. Malfunction of the water temperature gauge; 3. Excessive scale in the cooling system, leading to poor heat dissipation; 4. Loose or broken water pump or fan belt; 5. The engine operating under prolonged overload conditions.
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