Household appliances bring our lives such comfort and convenience, it's hard to imagine a world without them.

Most of the self-contained electric and gas-powered appliances that we rely on each day were invented in just the last century. They have done wonders to increase our recreation time and make our lives so much easier.

Imagine life without your fridge, microwave, oven, or washing machine. Most of us could barely last a single day without these conveniences—even though modern versions have only been around for the past 50 to 60 years.

In a relatively short amount of time, we've become totally dependent on our home appliances. But that's great news for appliance technicians, who are always in demand for installation and servicing. And it's definitely a positive trend for anyone considering appliance repair training.

Want a little preview of the kinds of issues you'll face on the job and learn about during appliance training?

Here's a roundup of the home appliances that always seem to need servicing, how they break down, and what you'll check first.