This "Sunster factory store" heater model XMZ-D3 was broken on arrival from Aliexpress / Hcalory / Renqiu Xinmaizhong Auto Parts.
According to the manual error E-08 is "fan short circuit". The fan makes a very high noise, so over current is reasonable.
What is not reasonable is that I was offered only a fraction of the cost as a refund. A full refund or new delivery is what I would need.
![](https://i.ytimg.com/vi/ESThEk_UNyg/maxresdefault.jpg)