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do you see the box that the furnace sits on?
That is the ac coil.
Could you attach picture of that please.
the last picture of the big silver box with BRYANT on it.
The right side panel comes off by removing 5/16s screws. This will let us see the ac coil surface.
Also, this circuit had many issues with turning off the blower and causing the issue you describe. It is a HK42FZ circuit board. It was known for turning th blower off for no reason resulting in the 33 code.
I do not know if this is your issue...but this was a issue with this circuit board.
Remove the panel and take pic of inside and I can tell right away if it is a factor.
That is what I thought.
Can you tell me if any tech has taken a "temperature rise"
Your unit is rated for a temp rise of 30-60 defgrees. It means it is designed to suck in air and heat it 30-60 degrees.
You deduce this by measuring temp of air at return register...and air at first supply register, and then figure the difference.
70 return air and 100 register is 30....
I would like to know your temp rise.
I would like the temps after a 5 minute run time.
I thank you for the extra help.
You are at the very bottom of the temp rise range. It is my opinion it is not due to blockages , dirty blower, coils or duct work...
If any of those were the case your temp rise would be 60 degrees or higher.
It is my bet that you have one of the affected boards that turn the blower off randomly while burner is on resulting in overheat at that given time.
I realize this is new development..but I personally changed around 300 of these boards.
The replacement board is a wire for wire changeout.
I see you are savvy with pics so the best thing is to take pics and jot notes, but you will find it to be a straight changeout.
Plus, in the event you need help, just return here.
They are available quite a few places..
Here is an example - http://shortyshvac.com/index.php?main_page=product_info&products_id=39
you will see HK42FZ004 all the way to HK42FZ016 because they kept reworking the board .
I am sure. Plus at the top edge of your board is the HK42FZ009 which was 2 reworks agao.
If you look at the link I supplied you will see the 009 is covered, and then you can verify the 009 at the top of the circuit board you have,
You are welcome...here is my deduction:
33 is overheat code.
The temp rise which is normally operating desig temp is 30-60.
You running temp is 30- which means you are certainly not overheating.
This eliminates dirty blowers, gas pressure, duct, dirty ac etc..
If any of those were a factor the temp rise would be 60+.
This leaves us with 2 options....
1- a weak limit switch. It trips at lower temps than it is supposed to.
2 A bad circuit board. Turns blower off at random.
I apologize I did not mention a weak limit. The problem with this unit is I changed so many boards I aometimes neglect the other potential answers.
It may be cost effective to replace the limit first as a move toward a solution.
Sorry for site issues James, I was locked out from replying.
I thank you and will be available for no charge follow up on this question whenever you need.