What is the most important thing to test on a used refrigerator?

The cooling performance. Ask the seller to have it running for several hours, then check that the freezer is cold and the fridge is between 34°F and 40°F. Also test the door gaskets with a piece of paper; a weak seal wastes energy and can cause temperature fluctuations.

Can I trust a seller who says an appliance 'worked when they moved in'?

No. Always ask to see the appliance running before you pay. If the seller cannot or will not demonstrate it, assume it is broken or has a serious problem. A working appliance is easy to show; a broken one is often hidden.

How old is too old for a used dishwasher?

Dishwashers typically last 9–12 years. A used dishwasher older than 10 years may still work, but parts become harder to find and repairs often cost more than the unit is worth. Factor age into the price you are willing to pay.

Should I buy a used oven with a cracked glass door?

No. A cracked glass door is a safety hazard and can worsen with heat. It is also expensive to replace. Walk away unless the seller offers a steep discount that covers a professional replacement, which most buyers should avoid.

How to Inspect Used Kitchen Appliances Before Buying: Fridge, Oven, and Dishwasher Checklist

Why a Used Appliance Inspection Matters More Than the Price

A used fridge, oven, or dishwasher can save you hundreds of dollars, but the true cost only shows up after you get it home. A $150 refrigerator that fails in two months is no bargain. The inspection you do before handing over cash is the single most important step in the whole used-appliance buying process.

Sellers often list appliances as 'gently used' or 'works great' without any proof. Your own eyes, ears, and hands are the only reliable tools. You do not need to be a technician to spot most serious problems; you just need to know what to test and what normal wear looks like.

The checklist below covers the three most common kitchen appliances. Use it as a guide, not a rigid script. If an appliance fails any of the basic tests, either negotiate a lower price or walk away. A good inspection takes about 20 minutes per appliance and can save you from a costly repair bill.

A person checking the door seal of a refrigerator with a piece of paper

How to Inspect a Used Refrigerator

Start with the basics: ask the seller when the fridge was made and whether it has ever been repaired. A refrigerator older than 10 years may still work, but its efficiency and repair costs become less predictable. Look for a model number and serial number plate, usually inside the fresh food section, and search online for the age and common issues.

Open both doors and smell the interior. A sour or musty odor can indicate mold that is difficult to remove, especially in porous gaskets. Check the door gaskets by closing the door on a piece of paper. If the paper slides out easily, the seal is weak and the fridge will waste energy. Look for cracks, tears, or stiffness in the rubber.

Test the cooling by asking the seller to have the fridge running for at least a few hours before you arrive. Place your hand on the back wall of the freezer; it should feel cold. Listen for a steady hum from the compressor, not loud rattling or clicking. Check the temperature with a thermometer if you have one; the fridge should be between 34°F and 40°F, and the freezer around 0°F.

Run a paper test on all door gaskets
Check for rust or dents on the back and bottom
Inspect the condenser coils for heavy dust or damage
Look for water stains inside the fridge or under the unit
Ask to see the appliance running, not just plugged in

How to Inspect a Used Oven and Range

For a used oven, the most important test is the heating cycle. Ask the seller to turn it on and let it preheat to 350°F. Watch the element or burner: it should glow evenly, without cold spots or excessive sparking. If the oven uses gas, check that the flame is blue, not yellow or orange, which can indicate a combustion problem.

Open and close the door several times. The hinges should feel firm, and the door should seal tightly against the frame. A loose door lets heat escape and wastes energy. Look at the interior for heavy rust, peeling enamel, or burnt-on food that would be hard to clean. Check that the oven light works and that the racks slide smoothly.

If the range has a cooktop, test each burner on high and low. Electric coils should heat up quickly and evenly; gas burners should ignite without delay. For a smooth-top glass stove, look for deep scratches, cracks, or discoloration. A small chip may be cosmetic, but a crack can spread with heat and become a safety hazard.

What to Test	What Normal Looks Like	What to Walk Away From
Heating element	Glows evenly, reaches temp in 10–15 min	Cold spots, sparks, or no heat
Gas flame	Blue flame, ignites within 2 seconds	Yellow flame, delayed ignition
Door seal	Door closes firmly, no gaps	Loose hinges, visible light leak
Cooktop burners	Even heat on high and low	Burner clicks but never lights
Interior condition	Light wear, minor stains	Heavy rust, cracked glass, peeling enamel

How to Inspect a Used Dishwasher

Dishwashers are the most complex of the three, with water pumps, heating elements, and electronic controls. Start by opening the door and pulling out the bottom rack. Look underneath for rust, especially on the spray arm and in the corners. A rusted floor can mean a leaking tub, which is expensive to fix.

Check the door seal for any rips or buildup of grime. A damaged seal will leak water onto your kitchen floor. Examine the spray arms for clogged holes; you can hold them up to the light to see if they are clear. Ask the seller to run a short cycle, or at least listen to the pump. A quiet, steady whir is good; a loud grinding or banging sound means a failing motor or bearing.

Look at the interior racks for chipped or rusted tines. A few small chips are normal, but rust that flakes onto dishes is a problem. Check that the detergent dispenser opens and that the door latch clicks securely. If the dishwasher has a stainless steel tub, look for dents or cracks; a damaged tub can leak and is often not worth repairing.

Red Flags and Final Checks Before You Pay

No matter which appliance you are inspecting, some warning signs should stop the sale immediately. Heavy rust, burn marks, water damage, or a strong smell of burning plastic all indicate deeper problems. Also be cautious if the seller refuses to let you test the appliance or says it was 'working until recently' without proof.

Before handing over money, ask about the appliance's history: how old it is, how often it was used, and whether it came from a smoke-free home. Check for a model number and look up the user manual online to understand normal operating sounds and error codes. Ask for the original receipt or any service records; these add confidence.

Finally, plan the logistics. Measure the space where the appliance will go and the doorways it must pass through. Bring a hand truck and straps, and inspect the appliance for damage after moving it. If the seller offers delivery, agree in writing on what happens if the appliance is damaged in transit. A careful inspection and a clear plan will help you buy a used kitchen appliance that actually saves you money.