Andrew, 39, hasn’t been seen since leaving his home in York on Friday, and officers are very concerned for his welfare.
Officers believe Andrew may be in Scarborough and are asking anyone who has seen him to get in touch.
In particular, police are urging people to look out for his black Fiat Punto, registration YR63 EDP.
Andrew is described as a white man, medium build with a tanned complexion. He has short dark brown/greying hair, a brown beard and wears glasses.
When he was last seen, Andrew was wearing a t-shirt, black jeans, hooded zip up with white stripes on it and white rim trainers. He might be carrying a backpack.
Anyone who thinks they might have seen Andrew or his car, or who has any information is asked to contact police.
Dial 101, press 1 and pass information to the Force Control room.