Amana PTAC unit not cooling right out of the box?

Question edited for a lot more clarity.

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Probably this one. Talk to your installer.

https://www.amana-ptac.com/products/ptac/hec154j

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I've replaced many Amanda control boards. They have micro relays attached to the board. These relays are about a half inch by 1 inch in size, and control line voltage to the compressor and blower motor, and give up quite often. Its probably the board if its a digital controlled board. If it has manual, turn to select, type knob, it will be in that fan section knob. Hope this helps!

Sounds like you need a new control board.

see if you can find a new board the power failure fried it

Does this unit have 2 breakers to it? The model you put down is a PTAC and generally just plugs in to the wall so it would have only 1 breaker. If I recall correctly it's got a 5 year warranty on parts so it may be worth it to check with your local HVAC tech and have them do a diagnostic for you. A good place to start would be Amana who can tell you the authorized service company in your area. They'll get the part for free and should roll the diag fee into the repair cost so you'll only pay for labor (if it even needs a part). Their sales and service number is: 1-800-647-2982. Here's a link to your warranty info:
http://www.amana-ptac.com/Home/Warranty/tabid/449/Default.aspx

Reset the unit to factory setting by take the master switch off of 10 sec.
Then press and hold the cool and heat button down while turning the master switch back on.