smart thermostat circuit needed some layout tips
If RS232 Test is not grounded, it will fail.
Read datasheet on all unused inputs for proper handling.

Shop around for 3 day turns on PCB. You will need more debug time than you expect 1st time.

Read and follow these rules as much as possible.
http://media.protoexpress.com/notouch-pcb-design-guidelines.pdf

I also high recommend this shop and others with similar capability.
But if you are on a tight budget.... How much does late cost?