Unable to correct error code on LG Dishwasher (IE, E1, or other code)

When this happened to my 12 year old dishwasher, I take out the filter at the base of washer, and using a cup, drain excess water. Add the cheapest VINEGAR to the base, screw the filter back in. Wait a few hours for the vinegar to do its magic, hey presto! the machine works again. I'm ready to buy another, newer model, but this trick works everytime! Sometimes, I don't even empty all that fluid out, but just add that Vinegar. Hope this solves your problem too. Havagreatday!

That is actually DE as in Drain Error. Check for plugged drain hose or blockage in the sump area. Another possiblity is the following, from my tips and tricks:

If you are getting a IE or similar error on your LG dishwasher and have not been able to solve the problem using information based on that code, check the serial number of the dishwasher. If the first three numbers are between 501 and 702 you may have this problem:

The black mastic sound insulation material inside the dishwasher door can soften from the heat inside the dishwasher, allowing the wires inside the door to become embedded in it. If this has happened, the insulation on the wires can soften and begin to dissolve, resulting in shorted or broken wires. This may cause various error codes which may send you on a wild goose chase.

Take the screws out of the door and inspect the black insulation and the wires. If any wires are embedded in the black mastic, you may cut them and bypass them with a new section of wire, then make sure to add an insulating material to separate the wires from contacting the black mastic. In severe cases, the inner door panel must be replaced (they no longer use that type of mastic) and the wiring harness for the dishwasher would also be replaced. (a set of all the wires and plugs).

That is actually a IE code, as in " Inlet Error". You need to take the left side panel off to view the little paddle wheel which should spin when the unit fills, thus counting the amount of water entering the dishwasher. It is enclosed in a somewhat translucent plastic. Also, if water is not filling, or filling slowly, check the inlet screen on the water valve, located behind the front lower panel, by removing the elbow fitting where the water enters the dishwasher. If all these things are OK, you might need to check this out: (from my tips and tricks)

If you are getting a IE or similar error on your LG dishwasher and have not been able to solve the problem using information based on that code, check the serial number of the dishwasher. If the first three numbers are between 501 and 702 you may have this problem:

The black mastic sound insulation material inside the dishwasher door can soften from the heat inside the dishwasher, allowing the wires inside the door to become embedded in it. If this has happened, the insulation on the wires can soften and begin to dissolve, resulting in shorted or broken wires. This may cause various error codes which may send you on a wild goose chase.

Take the screws out of the door and inspect the black insulation and the wires. If any wires are embedded in the black mastic, you may cut them and bypass them with a new section of wire, then make sure to add an insulating material to separate the wires from contacting the black mastic. In severe cases, the inner door panel must be replaced (they no longer use that type of mastic) and the wiring harness for the dishwasher would also be replaced. (a set of all the wires and plugs).

If you are getting a IE or similar error on your LG dishwasher and have not been able to solve the problem using information based on that code, check the serial number of the dishwasher. If the first three numbers are between 501 and 702 you may have this problem:

The black mastic sound insulation material inside the dishwasher door can soften from the heat inside the dishwasher, allowing the wires inside the door to become embedded in it. If this has happened, the insulation on the wires can soften and begin to dissolve, resulting in shorted or broken wires. This may cause various error codes which may send you on a wild goose chase.

Take the screws out of the door and inspect the black insulation and the wires. If any wires are embedded in the black mastic, you may cut them and bypass them with a new section of wire, then make sure to add an insulating material to separate the wires from contacting the black mastic. In severe cases, the inner door panel must be replaced (they no longer use that type of mastic) and the wiring harness for the dishwasher would also be replaced. (a set of all the wires and plugs).

It sounds like the flood switch in the bottom of the washer is activated. check for water in the base as the machine if maybe leaking. This is a Dishwasher?