Joolz I had a similar experience last December. The pool heating packed up after about 7 days, we were there for 21 days so needed it fixed. They management company had to get a replacement part for the control box which took about 4 days to get it installed. After that was installed the pool lights didn't work but a least the pool was very warm. They never managed to get the lights to work before we left but the owner refunded us 50% of the pool heating cost for the inconvenience which I thought was more than fair, as these things happen.