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Re: Power to dishwasher and will not run
Check your thermal fuse. It will be inside the control panel, clipped to the control board somewhere. It's usually a white plastic square piece with two wires connected to it. The fuse should read a short. If the fuse is blown, you will need to replace it. If the fuse reads good, I would suspect you have a control board problem. Make sure you secure power to the dishwasher BEFORE you take any resistance checks, however. Even if the fuse is blown, you could still have live voltage on one side of the fuse. If you cannot find the fuse, there should be a tech sheet with wiring diagrams inside the lower kick plate below the door. This could be a tremendous help you as well. Let me know what you find.
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More than likely it is the computer board. However it can be also caused by the main power switch or the door interlock switch. There is no fuse, the main power supply is part of the computer board. The switches are very easy to check but the front display panel of the dish washer needs to be disassembled as access to the main computer board is required. A multimeter it is also required for the switch verification. Make sure the main power cord of the dishwasher has been unpluged. Removing the front display panel it is not difficult. Once the front display panel is removed you have access to the main power switch and the door interlock switch. Unplug the power cord from the dishwasher and remove the connectors from both switches. Verify continuity on both switches using the multimeter. If you have electronics back ground skills you can also verify if the main computer board has power; for this you need to have both switches connected and the door interlock switch latched. You should be able to measure 110 volts AC on the two wires comming out of the main power switch connecting to the comptuter board.
What you need to do is take the cover off the front by removing the screws on the back of the door, then remove the cable that connects to the control panel. Then power it back on and see if the pump comes on briefly. If it does then the control panel is bad, if it does not then the power transformer is suspect.
Incoming power goes through the door switch first,then to the control panel. Your door switch attached to the door latch may be defective. If the door switch checks good on a meter then the control board is bad.
HI, there are four problem spots that i recommend checking. these are the most common hot spots for a non responsive dishwasher. Check each area thoroughly to address this issue.
1. No power to the dishwasher Make sure there's power getting to the dishwasher. Check for a tripped circuit breaker or a blown fuse. Check the wall socket for power. Sometimes the power cord disconnects at the dishwasher (inside the junction box, behind the bottom kick panel), if this is the case, the wiring must be repaired or replaced.
2. Door switch Replace if defective.
3. Timer Replace if defective (note: uncommon problem).
4. Selector switch Replace if defective (note: uncommon problem).
Some of the LG LDS5811 had problems with the wiring harness in the door panel. This is nothing to mess with unless you have disconnected the DW from power.
You can open the door panel by removing the screws around the inside edge of the DW. Or, better yet, firmly but politely contact LG service and tell them you are aware of LDS5811 dishwashers having these symptoms being caused by _melting_ wires in inside the door panel. This is true and even if the DW is out of warranty, LG should fix this problem at no cost to you.
I just fixed my washer!!! had power to control board. romoved lower panels openned connection box ( one screw) cut and cleaned wires and reconnected to power line that runs to the plug. Did it twice and finally got a good connection started right up. WAS just about to order a new circuit board. SAVED MYSELF $100.00 !!!!!
Could be the motor is stuck. This is a common problem in dishwashers. With the power turned off, open the front kick panel and turn the motor a couple of times by hand. Then turn on the power and run the drain cycle to see if the motor drains properly.