$40 towards Appliance Diagnosis, Repair, and Parts (up to Four Appliances) from A–Appliance Xperts ($100 Value)

Chicago

22 Ratings

Value Discount You Save
$100 60% $60
Give as a Gift
Limited quantity available
Over 170 bought

In a Nutshell

The appliance repairmen can be at your home in less than three hours

The Fine Print

Promotional value expires 120 days after purchase. Amount paid never expires. Appointment required, same day appointments accepted. Merchant's standard cancellation policy applies (any fees not to exceed Groupon price). Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. Limit 1 per household. Our Appliance Repair Company Services and Repairs Chicago, Chicagoland, and Parts of Wisconsin & Indiana. See website for exact locations. Can not be combined with special offers. $20 additional charge for more than 4 appliances. Service within 3-4 hours of calling. Subject to availability. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

The Deal

  • $40 for diagnoses, repairs, and parts for up four appliances ($100 value)

Refrigeration: The Anatomy Behind a Breath of Cold Air

You can pop the meals out of your fridge or freezer to enjoy any time. Read on to learn how these ice boxes keep things chill.

Like an inscrutable monolith, it stands in your kitchen. It may emit a whirr or gurgle every so often, but in general a refrigerator’s workings are not easy to intuit. Its moving parts are hidden, and the most important element of all is a shape-shifting substance called a refrigerant. Several different chemicals can do the job, but all share the property of changing state at less extreme temperatures than most substances. (Their boiling points are typically a couple dozen degrees Fahrenheit below zero.) They morph easily between a liquid and a gas, thereby producing blasts of arctic air each time you open the unit’s door.

Refrigerant keeps things cool by acting as a sort of shuttle, picking up heat from inside the chamber and dropping it off outside, over and over again. (That’s why the back of your fridge gets warm.) Use your x-ray vision to bore into the area behind the food compartment, and you’ll find the refrigerant—here appearing as a chilled gas—circulating through small tubes and absorbing any heat inside the chamber.

As it leaves, the now-warm gas enters the compressor. As you may remember from science class or the time you got trapped in a storage closet full of thermodynamics textbooks, pressure is proportional to temperature, so compressing the gas also heats it further. Since heat naturally flows from warmer areas to cooler ones, this step helps propel the refrigerant into the series of tubes at the back of the fridge known as the condenser. The maze of thin tubes creates a lot of surface area so the heat can quickly radiate away into the kitchen.

As the gas loses heat, it condenses back into a liquid and flows through an expansion valve. If you’ve ever used a can of compressed air, you’ll have noticed that it becomes frigid as you dispense the gas and relieve the pressure inside. The expansion valve works the same way, controlling the flow of refrigerant between areas of higher and lower pressure. As the valve dispenses refrigerant into the low-pressure area called the evaporator, the refrigerant has room to expand into a (still very cold) gas. And the cycle begins again, at least until the desired temperature is reached and a thermostat shuts off the system.

Customer Reviews

22 Ratings

Great service call, Carlos was so awesome and he helped me understand our issues with our dryer and washer. Would highly recommend.
Raul V. · June 14, 2016
great service
Kevin M. · June 10, 2016
Bob was great!
Mr. K. · August 6, 2015

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