For several years running, I had to call out a plumber every autumn; the central heating pump would quit shortly after I turned on the system. One year, I had a magnetic filter installed to catch the gunk that kept jamming the pump, but the next year it quit right on schedule. I called the plumber. He cleaned out the magnetic filter, restarted the system, and sent me a bill.
The next year, the annual breakdown of the pump coincided with a warm spell, so I did nothing for a week. One day, while I was staring into space, it occurred to me that YouTube might hold the answer to my problem… More at The Guardian.
I have used YouTube for countless DIY tasks at home and always go there first when a problem occurs. How about you?