I’m a newbie with a question on carbonation. My first brew, an American IPA, sat in the bottle for about two weeks before refrigerating and I had great carbonation and an overall good beer. My second batch, a Fat Tire clone, was bottled for a week and I decided to crack open a bottle to test it following a day in the frig (just for this one bottle). Almost NO carbonation, very flat. Am I in trouble with this brew or simply impatient?
RDWHAHB-unless you are out of IPA…
Too early. Give it another week at room temp.
I’d say impatient, but it’s too early to say. Give it another week or two, then check again.
2-3 weeks at 70f is a good place to start, if not done then add a week.
Assuming you primed properly bottle carbonating/conditioning is a pretty fool proof process and only requires time and temp to do its job.
Patience will reward you!
Trouble? Other than it probably tasting like Fat Tire? :o
Give it another couple of weeks to finish carbing and you should be fine.
And more importantly - Welcome to the forum and the hobby/lifestyle/obsession. Soon you will be asking about exotic hop varieties and water balances. And the answers will be here!
I thought the same thing when we sampled a bottle of our Pliny clone after 10 days…no carbonation at all. Let it sit for 2 more weeks and voila. I’m learning too and learning patience is on that same list.
+1
The hardest part of this hobby is the waiting.
Welcome to the AHA Forum. 
My first lager was bottle conditioned. After a month, flat. 2 months, flat. I contemplated opening each bottle, dosing with fresh yeast and recapping. Instead I put all 4 cases in the corner and forgot about them. After 5 months I popped one open and it was perfect. It even placed in a competition. Probably an extreme example though. 3 or 4 weeks should be plenty.