Ive done that myself in the past
on a very similar freezer
it was no fun at all
esp grabbing the ice chunks and tossing them into the basement sink
then I wore some gloves.
I decided Never Again !
I bought a new freezer : FB
and use that rather than depends on the weather to keep the stuff Fz.
unfortunately , the Second Law of Thermodynamics took over :
https://en.wikipedia.org/wiki/Second_law_of_thermodynamics
basically , Emptyness is always filled.
FB is now pretty much filled.
Oh and my freezer opens to the R , and I used a heat gun rather than a blow dryer
this one :
https://www.harborfreight.com/1500-watt-dual-temperature-heat-gun-572-1112-96289.html
much faster. same mess on the floor though