you could probably do with a flush. However, I admit that I did my first ever flush and treat this past summer. I was ignorant of the need until joining this forum. I only hope I dont have damage from it. If your's has not ever been flushed it would have been better but it isnt fatal.
I upgraded to a 203 thermostat when I flushed too.
I upgraded to a 203 thermostat when I flushed too.
