[JohnN]

Help. I need someone who knows a little more about electrical than I do. I know enough to be dangerous.

I have a 5 year old villa, a Leviton GFCI outlet in the garage, the breaker says it's for the garage door and all outside receptacles and that's correct. I came home from a trip and the breaker wouldn't reset, so I figure it's busted and I went to my friendly Ace Hardware. He says he's got just what I need, the only one they sell , a 20 amp Leviton. So I bought it and installed it.

I look at the old one and it has 15 Amp imprinted into the plastic, but a sticker on the bottom that says 20 Amp ?????
Now, my spa that's hooked into one of those outside outlets starts, but then stops. The breaker nor the GCFI shuts off, just the spa jet/heater stop. So it's either the GCFI or the spa control panel ($500 plus install).
I want to check the GFCI since it's a lot less expensive.

So, did I possibly install a wrong GCFI, a 20 Amp where it should be a 15??
Why would the old outler have 2 different Amperages?
Does it even make much difference, does the 20 just give me more capability.

Now to top it off (If you're still reading) , I went to Lowes and their GCFI says 15 Amp on the box, but the actual device has 20 Amp imprinted into the plastic.

This doesn't even make sense to me.
Any advice is heartfelt appreciated.