Hi everyone. I am new to this forum and would like your help. I have a Carrier Weather Maker 8000 and I am having problems with it. Its keeps shutting off before it reaches the desired temperature . I made a couple of clips that I hoped would explain the problem better.
The Start:
http://www.youtube.com/watch?v=0JK8D87Hc0A
A clip showing me turning the Unit off and back on
http://www.youtube.com/watch?v=IZEDAwdZL10
After that the unit runs for about 5 to 10 minutes and the same thing happen again.
What could be the problem guys. Please I need your help and its really cold here

greb11

on the far left hand side there will be a rod sticking up in front of the burner, take a piece of sand paper and litely sand it , this is a flame sensor, if it does not sense a flame in the first 2 or 3 seconds it shuts the systm down and tries again 3 times , then suths the system down untill you reset by turning power off

labman

If it runs for 5-10 minutes, it is more likely the high limit switch. the switch could be fine if you have an air circulation problem. Check your filters. Otherwise, check the sticky at the top of the Heating and Air conditioning forum.

Tarik

I really cant tell what limit switch look like. I took a picture of the furnace and hope someone direct me to it. I dont have any air circulation problem and I just changed the filter today.