What is the fault code for the parking heater?

[VonJohn]

Parking heater fault code e08. Reasons for insufficient heating effect: If the heating effect is not obvious, it may be due to a too narrow return water outlet; air trapped in the circulation water circuit; kinked rubber hoses; blockages by foreign objects in the circulation pipeline; water pump failure; inlet and return water valves not being opened; the engine thermostat opening too early, etc. Identify the cause and carry out the corresponding repairs. Precautions for parking heaters: The parking heater is a vehicle 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 in cold winter environments without starting the engine, completely eliminating cold start wear on the car.