What is this light?

[Kevin]

5 bucks from the local pet shop...

really?

 

[jetjock]

No, not really. I just like making stuff up.

The way combustion testers work is by looking for CO2 in the coolant or to put it more accurately they test for the presence of carbonic acid:

http://en.wikipedia.org/wiki/Bromothymol_blue

You should be able to figure the rest out on your own...

 

[mickgarvey]

bird got out...


low coolant level light

check for leaks and check the overflow. most likely it is low or empty

hahaha i know mines always had the bird in the cage.