Dishwashers are fantastic time- and energy-saving appliances, and a recent survey found that dishwashing is the duty people dislike doing the most. When it comes to dishwashers, LG is a tried-and-true company with years of experience in the industry. However, accidents can happen even to the best of us.
Please read on if you own an LG dishwasher that has power but is refusing to start. This article investigates why your LG dishwasher won’t turn on and offers advice for fixing the issue.
My LG dishwasher has power, but I can’t get it to turn on
Electrical Cord Defect
If your LG dishwasher isn’t receiving enough power, it cannot run correctly. If the power cord appears to be frayed or to have loose connections, replace it.
When the door is completely closed, a sensor in every dishwasher alerts the central processing unit that it is safe to start the cycle. The dishwasher will not operate till the door has been completely closed.
A door that won’t close properly may be caused by several factors, including racks that aren’t in the right spot, dishes that protrude into the door area, panhandles, utensils, and so on.
It’s also possible that a tiny bit of debris, such as bits of food or grease, or broken crockery or glass, is obstructing the door seal and causing the issue. Inspect the area around the door seal and take out any debris you find, no matter how insignificant.
Assuming the aforementioned is true, it may be time to replace the door latch. It’s also possible that the door sensor is broken and needs to be replaced.
Locked/Child Safety Locked Into Place
The control lock, or child lock as it is sometimes referred to, is a safety feature installed on your dishwasher to prevent curious children from using the controls. They won’t be able to damage themselves or your appliance if you do this.
The appliance will turn on if the control lock/child lock has been set, but none of the buttons will have any effect. To restore button functionality, you must first disable the control lock.
This is a known issue that prevents LG dishwashers from completing their cycles. Amid its cycle, the appliance unexpectedly stops.
To fix this, a hard reset must be performed by cutting power for at least 15 minutes. After that, you turn the power back on and select a fresh wash cycle.
Break in the thermal fuse
The thermal fuse is another preventative measure installed in your LG dishwasher to safeguard its inner workings.
The thermal fuse will blow and off power to the appliance if it gets too hot. You will need to replace the thermal fuse before the dishwasher will work again.
If you opt to handle things on your own, you’ll have to;
Turn off the device by cutting its power cord.
Remove the screws by prying open the door using a Philips screwdriver.
Remove the door panel from the control panel.
Disconnect the power and pull out the control board.
Take apart the door and replace the control panel.
Troublesome Starter Relay
To get the motor going, the motor start relay powers the motor’s start windings. This relay must be changed if it develops a fault.
Behind the lower access panel on most LG dishwashers is where you’ll find it, near the pump. If the start relay fails the continuity test, it will need to be replaced.
Problematic Choke Switch
The selection switch regulates the settings for all of the wash cycles on your LG dishwasher. If you want to know if the selector switch is functional, you can use a multimeter to test for continuity. The selection switch should be changed if it is malfunctioning.
Failure of the Motive Motor
Your LG dishwasher’s spray arms get water by way of a circulation pump, which is powered by the drive motor. If the drive motor fails, the high-pressure water spray won’t work, meaning dirty dishes won’t get washed.
If the drive motor is broken, you will need to replace it using the;
Power off the device
Take off the bottom panel to gain access
Take apart everything from the water connection hose to the drain hose (and maybe even photograph each step so you can reassemble it all later)
To replace the driving motor, you must first remove it.
Put everything back together and secure the new access panel underneath.
Board of Control Failure
The control board interfaces with the control panel and relays command to the various parts of the setup. A faulty control board will prevent the appliance from starting since internal communication will have broken down.
If a continuity test on the control board fails (it should read between 2000 and 3500 ohms), then the board must be replaced.