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What are the reasons for a car having no heating?

1 Answers

SophieRose

09/04/25 3:28am

Car having no heating is caused by: 1. Faulty heater valve; 2. Clogged heater core; 3. Faulty thermostat. Car heating is achieved by transferring heat from the engine coolant. The circulating coolant from the engine passes through pipes, flow valves, and circulation valves into the small radiator inside the air conditioning evaporator. When the blower operates, air flows over the small radiator, and the water temperature in the radiator heats the air, which is then blown out through the air conditioning vents. The solutions for a car having no heating are: 1. Replace the old blower switch; 2. Clear clogged heater hoses; 3. Replace the thermostat; 4. Replace the heater core.

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