What is the E08 fault in diesel heaters?
2 Answers
Diesel heater E08 indicates abnormal operation or overheating of the internal motor. Please discontinue driving immediately and have it inspected or sent to after-sales service. Introduction to fuel-fired air heaters: Primarily used for heating industrial or commercial spaces, also for drying products or meeting process requirements. As the name suggests, air heaters warm the air. Fuel-fired air heater selection tips: Available in desktop, vertical, and wall-mounted styles. Desktop heaters are compact, vertical models feature streamlined designs, while wall-mounted units save space. Most heaters boast stylish designs with fashionable casings in popular colors like red, dark gray, and blue.
After so many years working in the auto repair shop, I've encountered the diesel heater displaying E08 fault quite frequently. It usually indicates that the overheat protection has been triggered, meaning the heater temperature is too high and the system automatically shuts down. This could be due to a faulty or poorly connected temperature sensor, aging wiring causing a short circuit, or excessive carbon buildup inside the heater blocking the exhaust pipe. You should first check if the sensor connection wires are loose or corroded, then clean the dust from the air inlet and outlet. If restarting the heater doesn't solve the problem, it's likely a mainboard issue. At this point, don't attempt DIY fixes as you might damage more components – it's best to visit a professional shop to diagnose the error codes with specialized equipment. The E08 problem during long-distance drives can be particularly annoying, especially in winter when it affects engine preheating and cabin heating. Addressing it early can save you a lot of hassle.