SNIP
"AT" wrote in message
...
Sez...................

should one replace by 15 amps or 20 amps switch

15 0r 20 amp GFCI *Outlet* depends on size of wire going to (feeding) it.
#14 gets 15 Amp
#12 gets 20 Amp.
Most likely is already a 20 Amp with #12 wire feeding it.
Tony