Translation of liquefy in Spanish

We felt a little dumb and waited for the hot water. The boiler seemed not to work and we started to become upset. We asked the technician to come once again and he admitted his mistake.
His name was Samy and he offered to take us to several places. In the beginning we were bothered as he did not stop talking on the way from the airport to the hotel and we thought he tried to sell something.
The view of the valley, the lakes and the surrounding volcano mountains were breathtaking. We stayed there for nearly one hour and had a little snack. From there we continued to have lunch.