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Error code reference

Haier Dishwasher Error Code LED1:0 LED2:1 LED3:1 LED4:1 LED5:0

Drain pump trouble

Haier codesHaier dishwasher codes

Drain pump trouble - the drain pump is not operating or draining properly.

First step from the service manual

Check whether the drain hose is too high; check whether drain pump is working and whether pipeline and drain pump are blocked.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
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What LED1:0 LED2:1 LED3:1 LED4:1 LED5:0 means on a Haier dishwasher

The LED1:0 LED2:1 LED3:1 LED4:1 LED5:0 error code on a Haier dishwasher signals a drain pump fault. This code activates when the control board detects that the drain pump is failing to move water out of the tub within the expected timeframe. The drain system includes the drain pump motor, the drain hose routing, and the internal sump and filter assembly. When any of these components fail to perform correctly, standing water remains in the tub and the control board halts the cycle and displays this LED pattern.

The most common triggers for this fault fall into two categories: mechanical blockages and component failures. On the mechanical side, food debris, broken glass, or accumulated grease can clog the drain pump impeller, the sump filter basket, or the drain hose itself, preventing water flow even if the pump motor is receiving power. Drain hose routing is also a frequent culprit. If the drain hose is routed too high, typically above the maximum height specified for the installation, the pump may lack sufficient head pressure to push water through the line.

On the electrical and component side, the drain pump motor itself may be faulty. A failed motor winding, seized impeller bearing, or a pump that receives no power due to a wiring harness issue will all produce this error. Diagnosing the pump electrically involves checking for voltage at the pump terminals during the drain cycle and verifying the motor windings are not open or shorted. Clearing the code and resolving the fault requires identifying and correcting the root cause, whether that is a blockage, an installation issue, or a failed pump assembly.

Source: manufacturer service documentation.

Common causes of LED1:0 LED2:1 LED3:1 LED4:1 LED5:0

  1. 01

    Blocked drain pump or sump filter

    Wiring / connection

    Food debris, broken glass, or grease buildup can clog the pump impeller or the filter basket at the bottom of the tub, preventing water from being pumped out. Remove and inspect the filter assembly and check the pump impeller for obstructions.

  2. 02

    Drain hose routed too high

    Wiring / connection

    If the drain hose rises too high before connecting to the sink drain or disposal, the pump cannot generate enough pressure to push water through. Check the hose routing and lower the high point if it exceeds the recommended installation height.

  3. 03

    Kinked or blocked drain hose

    Wiring / connection

    A physically kinked, pinched, or internally clogged drain hose restricts or fully blocks water flow even when the pump is functioning correctly. Inspect the full length of the hose from the dishwasher to the drain connection point.

  4. 04

    Failed drain pump motor

    Part replacement

    The drain pump motor itself may have seized bearings, failed windings, or a damaged impeller, meaning it receives power but cannot move water. Check for voltage at the pump terminals during the drain cycle to determine whether the issue is the motor or the control signal.

  5. 05

    Wiring harness or connector fault

    Wiring / connection

    A loose, corroded, or damaged connector between the control board and the drain pump can interrupt power delivery to the pump motor, causing a drain fault even when the pump is mechanically sound. Inspect the wiring harness and pump connector for damage or corrosion.

See the test procedure for each cause

Frequently asked questions about LED1:0 LED2:1 LED3:1 LED4:1 LED5:0

What does LED1:0 LED2:1 LED3:1 LED4:1 LED5:0 mean on a Haier dishwasher?
This LED pattern indicates a drain pump fault. The dishwasher control board has detected that water is not being pumped out of the tub as expected, either because the pump is not operating or because a blockage is preventing proper drainage. The dishwasher will stop the wash cycle until the drain issue is resolved.
How do I fix the drain pump error on my Haier dishwasher?
Start by checking the drain hose to make sure it is not kinked and is not routed too high. Next, remove and clean the filter basket at the bottom of the tub and inspect the drain pump impeller for debris. If the pump runs but drains slowly, the blockage is the likely cause. If the pump does not run at all, check the electrical connections to the pump and test the pump motor for continuity.
Is it safe to use my Haier dishwasher when this error is displayed?
It is not recommended to continue running the dishwasher while this error is active. The appliance cannot complete its cycle with standing water in the tub, and running repeated cycles without resolving the drain fault can stress the pump and other components. Address the root cause before resuming normal use.
Will resetting my Haier dishwasher clear this error code?
A reset may temporarily clear the error display, but if the underlying drain problem has not been fixed, the code will return as soon as the dishwasher attempts to drain again. Clearing the code is not a fix. The drain hose, filter, pump, and wiring all need to be inspected and any fault corrected before the error will stay cleared.
How much does it cost to repair a Haier dishwasher drain pump fault?
If the issue is a blockage in the filter or drain hose, the repair can often be done at no parts cost, only your time. If the drain pump motor needs replacement, parts typically range from $30 to $80 depending on the model, with professional labor adding $75 to $150 or more depending on your region. Diagnosing the exact cause first will help you avoid unnecessary parts costs.

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