Question about LG 24 in. LD-12BW5 Free-standing Dishwasher

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E1 error on LG - LD-4120M

HI We are getting a E1 error on our dishwasher. The owners manual says that it is a water leakage in hose connections. We have checked and cleaned all the hoses and filters. Any ideas

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  • Anonymous Mar 12, 2014

    low water and not cleaning the dishes and reads E1 and beeps

  • Anonymous Mar 18, 2014

    I had checked watersource,and clean inlet filter and outlet tube , filter .They are ok

  • Anonymous Mar 24, 2014

    LG LD-1403W E1 on display, supposedly water leakage in hose connections. Cannot find a leak. What else can it be?

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E1 is a common error in the LG Dishwasher range and is usually caused by the failure of the circulation pump and/or the impeller.

The motor and impeller are a complete unit.

Often what happens is the impeller breaks on the motor shaft and doesn't spin, therefore doesn't pump water.

There is a pressure sensor which indicates the lack of pressure and shuts the machine down with the E1 error being displayed.

The lack of pressure can also be from a water leak (as the owners manual suggests) also a controller PCB fault may produce an E1 error, however, the pump problem is extremely common.

Unfortunately, I have had 5 pumps die in 4 years and my dishwasher is only used about 4 times a week.

Posted on Dec 27, 2007

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Posted on Jan 02, 2017

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Is showing a 'E1' error and dings loudly.


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E1 is a leakage error in your LG dishwasher; it is usually displayed either due to a clogged drain or due to water leakage in hose connections. If the drain pump assembly is not clogged then check the motor water seal leakage of sump assembly and also check the impeller of washing pump, if it is worn then replace the impeller. You can also make sure that the height of drain hose is not over 20". Hope this helps...please post back for further assistance.

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If you've checked everything, you will need to replace the impeller possibly.


Leakage error > Conditon: Excessive RPM of washing motor happened during wash cycle due to water leakage. Possible cause: Water leakage in hose connections,water is leaked by damages. The motor water seal leakage of sump assembly. The height of drain hose connection ( sink drain hose ) is not over 20". Impeller of the washing pump is worn away.

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I keep getting an E1 error on my LG LD-2120W model dishwasher, can you advise what this means so l can either fix it or get it fixed. Thank you


leakage Error E1
  • The excessive RPM of Washing Motor happened during Washcycle due to water leakage.
  • Water leakage in Hose connections.
  • Water is leaked by damages.
  • The Motor Water Seal leakage of Sump assembly.
  • The height of Drain Hose connection
  • (sink-Drain Hose) is not over 20 .
  • Impeller of the Washing Pump is worn away.
Replace the connections of Hose. Check the point of damages and repair or replace the related parts.
fix it to the recommended Height. Replace the Impeller of the Washing Pump.

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Replace the Impeller of the Washing Pump.

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I have a LG Diswasher LD 2050 with a trouble Code E1. The manual says "Water leakage in hose connection" "water is leak by damage" Ihave check and everything is Okay. It let water in and when it start...


The most common problem on an LG dishwasher when error code E1 is reported but there is no actual leak found is the problem of a natural syphon being created by improper installation of the dishwasher. Pretty easy to fix:  Either add an Air Gap valve (available at any hardware store for almost free) or follow the drain hose from the dishwasher to the drain. Raise the hose and attach the hose to the up onto the bottom of the countertop. Adding that "rise" eliminates the possibility for the syphon effect to drain the dishwasher before the drain cycle begins.
If the hose ever fall back down, the problem will return immediately.  Adding the Air Gap valve is harder but is far more permanent (and complies with construction codes that really should not be ignored.)

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