Replacing a dishwasher is a manageable task if you have some basic DIY skills and the right tools. Below is a step-by-step guide to help you through the process. Remember to turn off the power to the dishwasher and disconnect the water supply before you start.
Note: Before beginning the replacement process, consult the new dishwasher's installation manual to ensure you are aware of any specific requirements or differences from the steps outlined below.
Step 1: Gather necessary tools and materials
- New dishwasher
- Screwdriver (Phillips and flat-head)
- Adjustable wrench
- Pliers
- Level
- Teflon tape (for water line connections)
- Dishwasher installation kit (if not included with the new dishwasher)
- Safety gloves
Step 2: Disconnect the old dishwasher
- Turn off the power to the dishwasher by either unplugging it or switching off the circuit breaker that supplies power to the dishwasher.
- Shut off the water supply to the dishwasher under the sink or at the main water supply valve.
- Remove the lower panel at the bottom of the dishwasher to access the water supply line, drain hose, and electrical connections.
- Disconnect the water supply line from the dishwasher's water inlet valve using pliers.
- If your dishwasher is hardwired, disconnect the electrical wires using a screwdriver. If it's plugged into an outlet, unplug it.
Step 3: Remove the old dishwasher
- Open the dishwasher door and locate the screws that secure the dishwasher to the underside of the countertop.
- Use a screwdriver to remove these screws.
- Carefully pull the dishwasher out from its current position, watching out for any water that may have collected in the bottom pan during use.
Step 4: Prepare the new dishwasher
- Check the new dishwasher's manual for any specific pre-installation requirements.
- If needed, attach any mounting brackets, drain hoses, or other components as instructed in the manual.
- Ensure the new dishwasher is level by adjusting the feet as necessary.
Step 5: Install the new dishwasher
- Slide the new dishwasher into the empty space left by the old one. Make sure it is positioned correctly and flush with the front of the cabinets.
- Use a level to ensure the dishwasher is perfectly level both from front to back and side to side.
- Secure the new dishwasher to the underside of the countertop using screws, just like you removed them from the old one.
Step 6: Connect the water supply and electrical
- Connect the water supply line to the dishwasher's water inlet valve, using Teflon tape on the threads for a secure seal.
- If the dishwasher is hardwired, connect the electrical wires as per the manufacturer's instructions. If it's a plug-in dishwasher, plug it into the outlet.
Step 7: Test the new dishwasher
- Turn on the water supply and check for any leaks around the water connections.
- Restore power to the dishwasher by either plugging it in or switching on the circuit breaker.
- Run a test cycle to ensure everything is functioning correctly.
Step 8: Replace the lower panel and adjust as necessary
- Once you've verified that the dishwasher is working properly, replace the lower panel at the bottom of the dishwasher.
- Make any final adjustments to the dishwasher's level, if needed.
Congratulations! You have successfully replaced your dishwasher. Remember to dispose of the old dishwasher responsibly, following local waste disposal guidelines. If you encounter any challenges during the process or are unsure about any step, it's best to consult a professional for assistance.