Frigidaire FDPH4316A vs WD21X31906 Dishwasher Electronic Control Board
Updated July 2026 — Frigidaire FDPH4316A wins on price and durability, WD21X31906 Dishwasher Electronic Control Board wins on sales rank.
The Frigidaire FDPH4316A is a superior choice for those needing a new dishwasher, while the WD21X31906 is a cost-effective option for repairs.
Why Frigidaire FDPH4316A is better
Complete Appliance
Frigidaire offers a fully operational dishwasher.
Features
Frigidaire has multiple wash cycles and energy efficiency.
Brand Reputation
Frigidaire is a well-known and trusted brand.
Why WD21X31906 Dishwasher Electronic Control Board is better
Cost
WD21X31906 is significantly cheaper.
Specific Use
WD21X31906 is essential for repairs.
OEM Part
WD21X31906 is a genuine OEM replacement.
Overall score
Specifications
| Spec | Frigidaire FDPH4316A | WD21X31906 Dishwasher Electronic Control Board |
|---|---|---|
| Wash Cycles | 4 | N/A |
| Control Type | Top Control | N/A |
| Energy Certified | Yes | No |
| Material | Plastic | N/A |
| OEM Part | No | Yes |
Dimension comparison
Overview of the Products
In this comparison, we will look at the Frigidaire FDPH4316A 24 Inch Wide Dishwasher and the WD21X31906 Dishwasher Electronic Control Board. The Frigidaire dishwasher is priced at $399.00, while the control board is more economical at $183.99, making it about 54% cheaper. Each product serves a distinct purpose; one is a fully operational appliance, while the other is a crucial component for repairs.
Pricing Comparison
The Frigidaire FDPH4316A is priced at $399.00, whereas the WD21X31906 control board comes in at $183.99. This represents a significant price difference of $215.01, making the control board about 54% less expensive than the dishwasher. If you're looking for a cost-effective solution for maintenance, the control board could be a more appealing option. However, for those in need of a new dishwasher, investing in the Frigidaire model provides a complete appliance rather than just a part.
Features and Functionality
The Frigidaire FDPH4316A boasts impressive features such as 4 wash cycles (Energy Saver, Heavy, Normal, Quick) and a top-control built-in design. Additionally, it is ENERGY STAR certified, ensuring reduced energy and water consumption. In contrast, the WD21X31906 is an electronic control board that serves as a replacement part and does not offer any features in terms of washing capabilities. If you're after a fully functioning dishwasher, the Frigidaire model is clearly the superior choice.
Performance
The Frigidaire FDPH4316A offers enhanced cleaning performance with its three spray arms and MaxDry™ technology, which enhances drying efficiency. It also includes a Quick Wash cycle that cleans dishes in just 60 minutes, making it ideal for busy households. The WD21X31906, being a replacement part, does not have a performance rating as it is not an appliance. Therefore, in terms of performance, the Frigidaire clearly outmatches the control board.
Brand Reputation
Frigidaire is a well-known appliance brand with a sales rank of 1309, indicating its popularity among consumers. The WD21X31906, on the other hand, is produced by Allstar Appliance Parts and has a sales rank of 4067, suggesting it is less popular. Brand reputation can play a significant role in purchasing decisions, especially when investing in larger appliances like dishwashers. Frigidaire’s established reputation may provide more confidence to potential buyers than a lesser-known brand.
Durability and Build Quality
The Frigidaire FDPH4316A is designed with a durable plastic tall tub that is easy to clean, ensuring longevity and resilience against wear and tear. Conversely, the WD21X31906 control board’s durability is contingent on its installation and the overall condition of the appliance it is being used in. While the control board is essential for the function of a dishwasher, its longevity is not as assured as that of a complete appliance designed for durability.
User Experience
The Frigidaire FDPH4316A is designed for ease of use with its top-control built-in feature that enhances the sleekness of your kitchen. Users can quickly select from its four wash cycles, which cater to various needs, including a quick wash for those on a tight schedule. The WD21X31906 does not enhance user experience in the same way, as it is a component rather than an appliance. If user experience is a priority, the Frigidaire would be the clear choice.
Which should you buy?
When deciding between the Frigidaire FDPH4316A and the WD21X31906 control board, the decision largely depends on your needs. If you require a new dishwasher, the Frigidaire model offers a complete solution with multiple features and functionalities that prioritize performance and efficiency. However, if your existing dishwasher requires a replacement part, the WD21X31906 is a cost-effective option at $183.99, making it a good choice for maintenance. Ultimately, for a new appliance, the Frigidaire is the winner, while the control board serves its purpose in repairs.

