Frigidaire FDPC4314A vs WD21X31906 Dishwasher Electronic Control Board
Updated July 2026 — Frigidaire FDPC4314A wins on capacity and features, WD21X31906 Dishwasher Electronic Control Board wins on price.
The Frigidaire FDPC4314A offers a comprehensive solution for dishwashing needs, while the WD21X31906 is a cost-effective replacement part. Choose based on whether you need a new appliance or a repair part.
Why Frigidaire FDPC4314A is better
Capacity
14-place setting capacity for family loads
Features
Includes DishSense Sensor Technology
Design
Modern built-in design with front controls
Why WD21X31906 Dishwasher Electronic Control Board is better
Price
Significantly cheaper at $183.99
Niche Use
Specifically designed for replacement
OEM Quality
Genuine OEM part for reliability
Overall score
Specifications
| Spec | Frigidaire FDPC4314A | WD21X31906 Dishwasher Electronic Control Board |
|---|---|---|
| Model | FDPC4314A | WD21X31906 |
| Price | $379.12 | $183.99 |
| Capacity | 14 Place Settings | N/A |
| Technology | DishSense | N/A |
| Brand | Frigidaire | Allstar Appliance Parts |
Dimension comparison
Overview of the Products
In this comparison, we look at the Frigidaire FDPC4314A 24 Inch Wide 14 Place Setting Built-In Front Control Dishwasher and the WD21X31906 Dishwasher Electronic Control Board. The Frigidaire dishwasher is designed for home use, while the control board serves as a replacement part for dishwashers. The Frigidaire is priced at $379.12, while the WD21X31906 is available for $183.99, making the control board about 51% cheaper than the dishwasher.
Functionality
The Frigidaire dishwasher boasts a 14-place setting capacity, making it suitable for family-sized loads and everyday use. It features DishSense Sensor Technology that automatically adjusts cleaning performance based on soil levels, ensuring optimal cleaning results. In contrast, the WD21X31906 is an electronic control board designed specifically for dishwasher operation and does not offer any cleaning capabilities itself. Its purpose is to replace faulty control boards in existing dishwashers, which limits its functionality to that of a repair part.
Design and Build Quality
The Frigidaire dishwasher is described as a built-in model with front control, providing easy access to its settings. Its design is tailored for home kitchens and promotes ease of use. The black finish adds a modern touch that can fit into various kitchen aesthetics. On the other hand, the WD21X31906 control board has a straightforward design focused on functionality rather than aesthetics, as it is an internal component. The control board is made to meet specific OEM standards, ensuring it can effectively replace certain models of dishwashers.
Price Comparison
The Frigidaire FDPC4314A is priced at $379.12, making it a significant investment for anyone looking to equip their kitchen with a new dishwasher. In contrast, the WD21X31906 is priced at $183.99. This price difference of approximately $195.13 highlights that the control board is a more budget-friendly option for those needing repairs rather than a full appliance. Given its role as a replacement part, the control board offers a more economical solution for maintaining an existing dishwasher.
Sales Ranking
In terms of sales rank, the Frigidaire dishwasher holds a position of 3,907 in its category, indicating its popularity among consumers. This ranking suggests that it is a well-regarded product in the market. The WD21X31906 control board has a slightly lower sales rank at 4,067, which may reflect its niche usage as a replacement part. While both products are relatively close in rankings, the Frigidaire dishwasher's sales rank indicates that it is a more commonly purchased item for those seeking new dishwashing solutions.
Intended Audience
The Frigidaire FDPC4314A targets homeowners and families looking for a reliable and efficient dishwasher. Its large capacity and advanced cleaning features cater to those who frequently entertain or have larger households. Conversely, the WD21X31906 is aimed at individuals or repair professionals who specifically need to replace a malfunctioning control board in an existing dishwasher. This distinction in target audiences is crucial when deciding which product is more suitable for your needs.
Customer Support and Warranty
While specific warranty details are not mentioned for either product, typically, a new dishwasher like the Frigidaire FDPC4314A comes with a manufacturer’s warranty covering parts and labor for a specified period. This assurance can provide peace of mind for buyers concerned about longevity and repairs. Meanwhile, the WD21X31906, being a replacement part, may have limited warranty options, focusing on the specific conditions of part failure rather than the appliance as a whole. Customers may want to consider potential support and warranty implications when making their choice.
Which should you buy?
Ultimately, the decision on whether to purchase the Frigidaire FDPC4314A dishwasher or the WD21X31906 control board depends on your specific needs. If you are looking for a new dishwasher that offers a robust cleaning experience and the capability to handle family-sized loads, the Frigidaire model is the clear choice. However, if you are in need of a replacement part for an existing dishwasher, the WD21X31906 provides a cost-effective solution that is significantly cheaper at about 51%. Consider your requirements carefully to make the best decision for your kitchen.

