What is the cause of the parking heater E09 fault?

[DiEden]

Parking heater E09 fault is caused by reasons such as the return water port being too narrow or the thermostat opening too early. The specific causes of parking heater E09 fault are as follows: Return water port too narrow: A return water port that is too narrow can cause the fault. Thermostat opening too early: The engine thermostat opening too early can cause the fault. Function of the parking heater: It is an onboard heating device independent of the car engine, with its own fuel pipeline, circuit, combustion heating device, and control device. It can preheat and warm up the car engine and cabin parked in cold winter environments without starting the engine, completely eliminating cold start wear of the car.