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Check the part number first: how to avoid wrong buys during your repair

Written by Contributor, on 11th Mar 2026. Posted in General

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You want a part to fit the first time, so you can continue your repair without extra orders or delays. The most reliable approach is to follow a fixed sequence: first identify the appliance exactly (model number + variant), then match the part. This prevents guessing based on appearance and ensures a targeted search. That is also the principle used by Fixpart: identiy first, then match.

Start with the rating plate sticker (not the symptom)

One symptom can have multiple causes, and one appliance name can exist in several versions. That is why it is better to check the model/type number on the rating plate before searching for parts. This ensures you start with the correct version from the beginning.

The rating plate is often located:

• inside the door opening (dishwasher or washing machine)

• behind a small flap near the filter

• on the back or side (refrigerator or dryer)

• on the bottom (sometimes you need to tilt the appliance slightly and carefully)

Copy the number exactly as shown, including dashes, extra letters, and any “/xx” suffix. These details determine the exact variant and which parts truly fit.

Quick check: is your variant correct?

The tool automatically checks whether you have included the full variant or additional code from the rating plate. Appliances with identical exteriors can differ internally, and this often becomes apparent only during installation. Watch for differences such as:

• a connector positioned on the left instead of the right

• a plug that fits but does not click into place

• a seal or hose with a slightly different diameter

By using both the model number and variant as your starting point, you reach the correct version more quickly. This reduces hassle: you order correctly the first time and avoid installation surprises.

Part number: how to check it without guessing

Once the appliance identification is correct, the software helps you locate the part number more reliably. It guides you to common locations where the number may appear:

• on the part itself (on a label, molded into plastic, or stamped into metal)

• on the packaging of a previously replaced part

• in a parts list or service manual, if available

A structured step-by-step approach works best: first a reference image showing how the part is installed, then close-ups of connectors, clips, and screw holes, followed by identifying the code on the part.

The tool also helps prevent confusion with incorrect codes. For example, motors or pumps sometimes display a code that does not correspond to the order number of the complete unit. Instead of comparing shape alone, the system verifies fit details such as:

• number of pins

• connector positions

• hose length

• seal diameter

This ensures proper alignment and prevents issues during installation.

Where it often goes wrong: returns, delivery time, and “looks the same”

Searching by image or appearance can be a useful starting point, especially if you do not yet have a number. The tool supports this by validating “looks the same” with additional checks such as connector type, dimensions, and revision differences within the same series.

If the system detects that the match is based primarily on appearance and that the model or part number is missing, it directs you back to the rating plate and the number on the old part (if still readable). This typically provides more certainty than searching by symptom and often saves time on ordering and returns.

For professional use, the process remains efficient because fixed appliance data can be reused. When model numbers are stored per appliance, it becomes easier to find the correct parts for repeat orders or invoicing. The tool supports this with a centralized overview where each appliance’s model number, variant, and previously replaced parts are clearly documented.

Choosing your route: when the number leads, and when the model leads

If the part number on the old component is still readable, use that as your starting point. The system then verifies whether that number matches the model and variant, ensuring you select the correct version.

If the number is unreadable (for example due to wear or heat damage), the software prioritizes the model/type number and uses your photos to compare connectors and mounting points one-to-one.

When working with water, gas, or electricity and signs of risk are present (such as wet connectors, a burnt smell, or melted plastic), the system flags this as a safety warning and pauses the process. This allows you to proceed in a controlled manner and avoids spending time on parts that may not solve the underlying issue.

 

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