When you return to AZ, buy a mechanical Brother, and leave it there the next summer. If the machine does have problems when you return to AZ, you aren't out a lot of money. If it doesn't, you can congratulate yourself for the great choice you made.
A computerized machine is left in AZ over the summer, it would probably be fine, too.
Someone mentioned that the other electronic devices, like TV, microwave, etc. don't suffer in the extreme heat. However, microwave is made to withstand heat in daily operation, TV has virtually no moving parts, and so on. That might make a difference in how well they withstand the heat of AZ in the summer. But, I'm no expert!
Last edited by cathyvv; 10-21-2015 at 07:43 PM.