What are the reasons for no hot air in the car?
1 Answers
Reasons for no hot air in the car: 1. Engine thermostat failure; 2. Hot water valve or hot water valve vacuum actuator failure; 3. Heater inlet or outlet pipe blockage or heater core clogged with dirt; 4. Temperature control damper or control cable damage; 5. Air conditioning blower damage or blower control circuit failure; 6. Air conditioning air distribution pipe blockage or air leakage. Car heating equipment is divided into non-independent heating systems and independent heating systems according to the heat source used. Non-independent heating systems use the residual heat of car exhaust or engine cooling circulating water as the heat source and introduce it into a heat exchanger. The fan blows the air inside or outside the car through the heat exchanger to heat it up. Independent heating systems are generally composed of a combustion chamber, heat exchanger, fuel supply system, air supply system, and control system.