Heavy duty, old fashioned machines that don't have motherboards or other electronics that tend to burn out.  

When the electrical motherboard breaks on one it generally has to be special ordered and will take a couple of hours to repair which is why I try not to buy them.

The fridge kept frying its mother board at the first sign of lightening, the stove has a broken element and fried jet controller.  

Who would have thought that a 1987 harvest gold color stove would have a motherboard that could go berzerk. 

I was an outlook addict, but only for it's email and contact features.However, after three motherboard crashes in a short amount of time, salvaging the outlook data file meant having to take the hard drive out, put it in a case, and then find the outlook file and setup outlook on another computer.After doing that too many times, I moved to gmail as my primary inbox.All my other accounts feed through there.I have now gotten rid of outlook on all my computers.Regrets:* contacts in gmail is a pain.

I used to build computer as a hobby. ( I'm sure many went through this faze) I had my share of blowing up a CPU and frying a motherboard once but if it happened on my first try, I would have never tried again.

I have upgraded the mother board as far as it can go and have the registry ultra clean.I took out the junk string keys myself.The cost of putting a new mother board in just makes sense to buy new.I stayed with it so long because I just love my Windows XP.Windows ME,Vista etc. are the crap systems between XP and Windows 7 which are the better Os's for Microsoft.I do not do heavy gaming etc. so the computer sales person was saying for my business and I 5 should be fine but not to go with an I3 processor as it would lag some with multiple tasks ongoing.I will go out and look today.Staples has a hundred dollar coupon off of already clearance prices for Windows 7 loaded systems and Best Buy I have get 50 dollars gift card for any purchase over 500 so I am torn

After having a hair dresser live there for a year, it clogged and burned up the mother board and motor.

Sure no heating or no cooling could be a much bigger issue, but if we're requiring and reminding tenants to be changing filters quarterly the chances of the heating issue being a quick reset on the motherboard or troubleshooting on the thermostat are high. 

When May came around and we experienced heavy rain, the roof started to leak, ironically in the laundry room over the HVAC system, wetting the motherboard and burning it out.