Getting 4 blinking lights. Furnace lights kicks on and works for like 5 minutes then shuts off but the fan keeps blowing then it repeats over and over again.

There are 5,367 different furnaces out there and blinking lights mean different things on different units so I am at a disadvantage in trying to figure out your problem on your no name no exact model number furnace. Sorry but my crystal ball is out for repair service so you will need to provide much more information about the unit if we are to help.

You sir are a ****. (to the HVAC "expert" from oh)