Question about Whirlpool 24 in. DU940QWD Built-in Dishwasher

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E1 Error on LG Dishwasher (LD-2040WH)

Hi All


We are having a problem with our LG Dishwasher. The machine is washing for about half an hour and then will stop and report an E1 error. According to the user manual this means "Water leakage in Hose connection" or "Water is leaked by damages". We have checked the diswasher's water connections and can't see any water leaking out. We have also cleaned the filers and checked the spray arms but that has not made any diffrence. Any suggestions what this error means and what we can try to resolve it would be appreciated.

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Re: E1 Error on LG Dishwasher (LD-2040WH)

Maybe the blockage is somewhere else. How about removing all the trays from the dishwasher, in other words, empty it from all racks and dishes and try it again

Posted on Aug 13, 2008

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  • 106 Answers

SOURCE: E1 display in diswasher

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.

Posted on Mar 30, 2010

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E1 error on my LG dishwasher, How to reset or fix.

the code indicates overfill. You may need a water valve or float switch

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The 1E error or fault code is to indicate that the washer is not filling with water. Check to be sure the water supply valves are open. Also, check to be sure the water supply hoses aren't kinked or clogged. Next, remove the hoses from the washing machine and run water into a bucket to test the pressure and flow of the water. If all of these check out and you have good water pressure and flow to the machine, you should replace the water inlet valve.

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Hi phtanner,

The E1 error can be fixed by following my Tip below:


Follow these directions, and the problem will be fixed.

Kind Regards :-)

* If this solution helped you, please rate it.

Jul 28, 2011 | LG 24 in. LDF 7811 Stainless Steel...

1 Answer

E1 error on LG washing machine LD-1204W1

Hi gmann947,

*Nice nickname, reminds me of Jeremy Mansfield, a retired radio presenter on 94.7 fm - Hehe*

To help you with your request, I'd advise you to look at my Tip below, it has the full description on how to fix the E1 error:


Kind Regards


* If this solution helped you, please rate it.

Jul 21, 2011 | LG Dishwashers

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Have E1 problem,machine stopped running,replaced washerpump/motor,runs for a few minutes E1 comes up and machine stops,any ideas

I had the same problem, new wash pump didn't solve the e1 error. New capacitor did the trick. Hope this helps

Jan 25, 2011 | LG 24 in. LD-12BW5 Free-standing...

1 Answer

LG 3 in 1 Dishwasher model LD2131SH showing E1, leaks water

e1 is a leakage error. you will have to find where it is leaking from...crack hose .crack motor assy.. water must be leaking
The excessive RPM of Washing Motor happened during Wash cycle 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.

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E1 Error code - no leaks - new pump - new pc board in Dec. 09

The most common reason for an E1 error on an LD dishwasher (that does not have a leak, including directly under the dishwasher) is the drain hose between the dishwasher and the drain does not have a rise in it between the DW and the drain. Either install a proper AirGar valve or attach the hose to the bottom of the counter top so that it raises 30" between the DW and the drain. When that raise does not exist, the laws of physics tell you that you WILL have a siphoning effect from the DW into the drain, causing the LG to report error code "E1", which is true because of the water leaving the DW during all the wash and drain cycles.
Good Luck!

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1 Answer

What is an E1 error code for an LG Dishwasher? Model LD12AW2

Please check at both ends of the drain hose and confirm that you do nit have a leak. Also, please confirm that water is not leaking directly under the dishwasher.
If you are certain that you do not have a real leak, check the impeller (under the mesh filter in the sump area beneath the lower dish rack) is not damaged and is firmly in place.
The E1 error code is a Leakage Error, detected by the motor spinning faster than it should if the unit is filled with water.
Please report back with what you find. Good Luck!

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LG Dishwasher making grinding noise then blinking E1 code 10 minutes later

Well done by resolving this problem. The other way to avoid the siphoning problem through the drain hose is adding an air gap valve/connector (available at any hardware store). You can use it even if you don't have a garbage disposal in your kitchen sink. That will assure that you have the proper height of the drain hose.
Hope this helps!

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E1 error on LG - LD-4120M

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.

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