I need to know how to install a new lever-latch on my Whirlpool dishwasher

Either door latch is broken or the springs are too tight

Need to check the actual parts.

For door latch see items 9 and 10 in this diagram

http://www.appliancepartspros.com/frame-console-parts-for-whirlpool-du810dwgu1.html

For spring location and adjustment see item 28 in this diagramhttp://www.appliancepartspros.com/tub-assembly-parts-for-whirlpool-du810dwgu1.html

please provide make and model number of the dishwasher so that I can track the latch type for you.

please provide the full make and model number of dishwasher

Sounds like the door isn't latching properly,sometimes this can be from not being level,the tub can torque to one side and the latch doesn't line up correctly.

Hi karen_kinzer,

I'm Harvey the Master Plumber.

The d/w was a recent purchase?

Then my advise to you is don't worry about it! The unit should be under warranty. It's time to make the call. Let the warranty repairman worry about it. If he can't fix it, he has the authority to condemn it and you'll get a new one. Anyway, this is one problem you should not have to worry about.

Feel free contact me again!
Please give me a rating here at fixya.com before you sign off
Thank you,
Harvey your Master Plumber

On many dishwashers, the latch engages a switch to activate the timer and other control components. If the latch is not completely engaged or if the switch is faulty, the machine will not operate. Here's how to test and repair a door switch:Step 1: Latch the door and hold the latch tightly in the closed position. This works best on a unit with a lever-type latch. Then turn the control to the ON position. If the unit works, the problem is probably a misaligned lock unit. Adjust the lock unit with a screwdriver. If this doesn't solve the problem, the switch may be faulty.Step 2: Test the switch with a volt-ohm-milliammeter (VOM) set to the RX1 scale. Remove the panel covering the door switch and remove one of the electrical lead wires of the switch from its terminals. Clip one probe of the VOM to each switch terminal and shut the dishwasher's door. If the meter reads zero, the switch is working. If the meter reads higher than zero, the switch is faulty and should be replaced.Step 3: Replace the switch with a new one of the same type. Connect the new switch the same way the old one was connected.
thank u...rate it

Its very east to open. Take the top cover plate off the appliance, undoing the screws at tha back and it will reveal the latch.
regards
george

either the latch thats on the door is bad,,or the catch on the tub is out of line,,,now if the dishwasher door drops hard and wont stay up ..you need new door spring and the weight makes it pop[ open..

are there soap suds coming out of the door?

sounds as if your door latch/handle is broken internally.your dishwasher is installed with 2 screws to theunderside of your countertop. its tricky but youll have to remove them (adjusting to leveling legs down will give you more room to get some kinda a phillips head bit in ther to remove the screws), once out slide the d/w foward and remove the strike plate door will open at least get your dishes out