Mazda lantis heat light on dash?

nave12, Oct 2, 7:12am
Hi,my mate has a mazda lantis 94 and has a dash light that stays on permanently that says "heat" with a little symbol under it,any ideas what it could be for.

mugenb20b, Oct 2, 7:15am
Catalytic converter is stuffed / blocked. Nothing serious, go to the garage or exhaust shop and get it removed.

dolly, Oct 13, 4:07am
I have mazda lantis 1993. battery was drained last night so i changed to a new battery... my car then is starting and running...but i noticed a heat light on and a battery light on my dashboard. What do they mean?