Find the exact part number before you buy anything

The first step is identifying what you are replacing. Look at the original part itself — most have a label or stamp with a model number, part number, or serial code. Take a photo of that label. If the part is already broken or missing, check your appliance's manual or the manufacturer's website for a parts diagram that matches your model year.

Write down the appliance model number (usually on a sticker inside the door, on the back, or under the unit) and the specific part number you need. Search that combination on the manufacturer's parts site or a parts retailer like Sears Parts Direct, AppliancePartsPros, or PartSelect. Ordering the wrong part wastes money and time — a part that looks similar may not fit or work.

Once you have confirmed the part number, check the price at two or three retailers. Manufacturer sites are often more expensive than third-party sellers, but they may provide authenticity. Third-party retailers sometimes offer the same part for 20 to 40 percent less, though shipping times vary.

Key Takeaways

  • Locate your appliance model number and the broken part's part number before ordering, because a visually similar part may not fit your specific model.
  • Most replacements require only basic tools — a screwdriver, pliers, and sometimes a socket wrench — and take between 15 minutes and an hour.
  • Unplug the appliance or turn off the circuit breaker before you start work, even if the part seems unrelated to the power supply.
  • Take a photo of the original part's position and connections before removing it, so you know exactly how to install the new one.
  • If you are uncomfortable working inside an appliance, a service call costs $150 to $300 in labor alone, so weigh that against the part cost.

Gather the right tools and a clear workspace

Most home appliance replacements need only a screwdriver (both Phillips and flathead), pliers, and sometimes a socket wrench or hex key. Check your appliance manual or the parts retailer's installation guide to see what tools the job requires. If you do not own them, a basic toolkit costs $20 to $40 at any hardware store.

Clear a flat, well-lit work surface near the appliance. Lay out all your tools before you start so you are not hunting for a screwdriver mid-repair. If the part has multiple fasteners or connectors, use a small container to keep screws and clips organized — losing one can prevent the appliance from closing or operating safely.

Disconnect power and document the original setup

Unplug the appliance from the wall outlet, or switch off the circuit breaker that powers it. Do not skip this step even if the broken part seems unrelated to electricity — many appliances have live circuits throughout. Wait a few minutes after unplugging before touching internal components, as some parts retain electrical charge.

Before you remove anything, take a clear photo or video of how the part is currently connected. Photograph the position of any wires, clips, or fasteners. If there are multiple connectors, label them with tape and a marker (for example, "red wire to left terminal"). This takes two minutes and prevents confusion when you install the new part.

Remove the broken part step by step

Follow the manufacturer's removal instructions in order. Usually this means unscrewing fasteners, disconnecting any wires or clips, and sliding or lifting the part out. Work slowly and note where each screw goes — some appliances use different screw lengths in different positions, and using the wrong one can damage the housing.

If a connector is stuck, do not force it. Gently wiggle it side to side while pulling, or check the manual for a release tab or clip. Forcing a connector can break the socket on the new part before you even install it. Once the old part is out, set it aside — you may need to return it to the retailer for a core charge refund, or it may be useful as a reference if something goes wrong during installation.

Install the new part and test before closing up

Unpack the new part and compare it visually to the old one. They should look identical in size, shape, and connector type. Insert the new part into the same position where the old one sat, aligning any guides or slots. Reconnect wires and clips in the same order you documented them — use your photos as a reference.

Screw fasteners back in by hand first, then tighten them with your tool. Do not over-tighten — you are looking for snug, not maximum force. Over-tightening can crack plastic housings or strip screw holes. Once everything is connected, plug the appliance back in or switch the circuit breaker back on, and run a test cycle to confirm the new part works before you close up any panels or doors.

When to call a professional instead

Some replacements are genuinely difficult or risky for a non-technician. If the part requires soldering, involves refrigerant (in air conditioners or refrigerators), or sits behind a sealed component, a service technician is the safer choice. A service call typically costs $150 to $300 in labor, plus the part cost.

Compare that labor cost against the price of the part itself. If the part costs $40 and labor is $200, you save money by doing it yourself — but if the part costs $180 and you are uncertain about the work, the technician's warranty on their labor may be worth the cost. Most manufacturers void the warranty if a non-authorized person opens the appliance, so check your warranty terms before you start.

Frequently Asked Questions

What if I break something while removing the old part?

Stop and assess the damage. If you broke a clip or connector, you may need to order that part as well — check the parts diagram to identify it. If you cracked the housing, the appliance may still function, but you should photograph the damage for your records in case the appliance fails later and you need to document the cause.

Can I return the old part if I change my mind?

Most retailers accept returns within 30 days if the part is unused and in original packaging. Once you have removed the old part from the appliance, it is considered used. Some retailers offer a core charge refund if you return the old part — check the retailer's return policy before you order.

Do I need to reset the appliance after installing a new part?

Some appliances require a reset or recalibration after a part replacement. Check the manual or the new part's installation sheet — it will tell you if you need to hold a button, run a diagnostic cycle, or clear an error code. Skipping this step can leave the appliance in a fault state even though the new part is working.

What if the new part does not fit?

Stop when ready and do not force it. Double-check that you ordered the correct part number for your exact model and year — a single digit difference in the model number can mean a completely different part. Contact the retailer to confirm you have the right item, and order the correct one if there was a mistake.

How long should a replacement part last?

A genuine replacement part should last as long as the original — typically 5 to 15 years depending on the part and how often the appliance runs. Third-party or aftermarket parts vary widely in durability. Manufacturer parts usually carry a one-year warranty; check what warranty the part you ordered includes.