Dishwashers can be hardwired or connected with a power cord and plug. Some models permit either method when the correct parts are used. Check the installation manual for the exact model rather than choosing a connection based on the brand or whether the machine fits under a counter.
A plug does not make a dishwasher less powerful, and a hardwired connection does not automatically make its circuit suitable. Both need the specified electrical supply, grounding and a safe installation.
What Is the Difference Between Hardwired and Plug-In Dishwashers?
A hardwired dishwasher connects to the building’s electrical wiring through the connection arrangement specified by its manufacturer. A cord-connected dishwasher uses an approved power cord and a suitable grounded receptacle.
The connection method is separate from the dishwasher’s size and layout. A built-in dishwasher can use a power cord, while portable and countertop models have their own installation requirements. A plug does not mean that a machine can be placed wherever an outlet happens to be available.
The water supply, drain connection, ventilation clearances, cord route and access for disconnection must all meet the model’s instructions. Do not move a connected dishwasher farther than its plumbing and electrical connections safely allow.
Advantages and Limits of Each Connection
A hardwired installation avoids a separate plug and receptacle at the appliance connection, but disconnecting it for replacement or service involves electrical work. Its safety still depends on correct wiring, grounding and circuit protection.
A cord connection provides a plug that can be disconnected where the approved installation keeps it accessible. However, fitting a receptacle or changing the dishwasher’s connection requires the parts and method specified for the appliance.
Neither method guarantees a lower installation cost, a higher voltage rating or better cleaning performance. Compare the requirements of the actual dishwasher and the existing installation with a qualified installer.
Recommended Further Reading:
- Are All Dishwashers Uniformly Sized?
- What is the Current Consumption of a Dishwasher?
- Should You Put Your Food Processor in the Dishwasher?
Can You Change a Dishwasher’s Connection Method?
Only change the connection method if the dishwasher manufacturer permits it for that model. A qualified installer must use the specified cord kit or junction-box arrangement and follow the complete installation instructions and local electrical requirements.
Do not cut off or disconnect the grounding conductor, remove a grounding prong, splice on an arbitrary plug or use an extension cord to make the connection fit. Grounding is a safety requirement.
For example, Whirlpool’s 4317824 power-cord kit instructions require a grounded connection and prohibit modifying the supplied plug or using an adapter or extension cord. Those instructions do not establish compatibility with every dishwasher.
If the existing receptacle, wiring or circuit does not meet the dishwasher’s requirements, have a qualified electrician correct the installation. Do not follow a generic wiring sequence to change the connection.
Related Further Reading:
- Can You Clean a Rice Cooker with a Dishwasher?
- Can Hand Mixer Froth Milk?
- Can The Dishwasher And Disposal Be On The Same Circuit? [Explained]
Are Bosch Dishwashers Hardwired or Plug-In?
Bosch connection options vary by model and market. Its U.S. design guide lists a supplied three-prong power cord for several 300 Series models and a compatible junction-box accessory for hardwired installation.
Do not treat the entire 300 or 500 Series as hardwired and the 800 Series as plug-in. Look up the complete model number in the Bosch dishwasher documents. Check the model compatibility of this junction-box and power-cord assembly before ordering.
Are GE Dishwashers Hardwired?
GE says most of its dishwashers use a hardwired conduit connection, while a few include a power cord. It also identifies optional power-cord kits. Use the compatible kit listed for your GE dishwasher rather than assuming every model has the same connection.
The required cord length and receptacle arrangement also depend on the model’s instructions and applicable local requirements.
Interesting Further Reading:
- Is it Possible to Knead Dough with a Hand Mixer?
- Are Dishwashers Worth It? [How To Judge Their Worth?]
- Uncovering the Mystery of the Anti-Griddle
- Why Is an LG Dishwasher Always Wet Inside?
What About Samsung, LG, KitchenAid and Whirlpool?
For Samsung, LG, KitchenAid and Whirlpool dishwashers, check the installation instructions for the individual model. The permitted connection and supplied parts can vary by model and country.
Confirm whether a cord is included, whether an approved kit is needed, and whether the manual permits hardwiring. A dishwasher installation kit must match the appliance’s requirements; a product name does not establish compatibility.
Ask the installer to confirm the supply voltage, circuit protection, grounding, connection location and access for disconnection before installation.
