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Error code reference

Haier Washer Error Code Err8

Water level overflow

Haier codesHaier washer codes

Water level overflow – the water level is over the protecting water level.

First step from the service manual

Check whether the drainage pump is well linked.

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

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What Err8 means on a Haier washer

Err8 on a Haier washer indicates a water level overflow condition, meaning the water inside the drum has risen above the designated protection water level threshold. This error is monitored by the water level pressure sensor (also called the pressure switch), which continuously tracks water height during fill cycles. When the sensor detects that water has exceeded the safe maximum limit, the control board triggers Err8 to halt operation and prevent potential flooding or damage to internal components.

The most common cause of this error is a drainage pump that is not functioning correctly or is poorly connected, which is why checking the pump connection is the first diagnostic step. If the drain pump fails to remove water at the appropriate time, water can accumulate beyond the protection threshold. A clogged drain hose, a blocked pump filter, or a faulty pump motor can all contribute to inadequate drainage that leads to overflow detection.

Additional causes include a malfunctioning water inlet valve that fails to close properly and continues allowing water to enter the drum even after the correct level is reached, or a defective pressure sensor that sends inaccurate level readings to the control board. In some cases, a kinked or obstructed pressure sensor hose can cause false overflow readings. Technicians should systematically check the drain pump wiring harness and connections, then inspect the inlet valve for proper shutoff, and finally test the pressure sensor and its associated tubing for continuity and blockages.

Source: manufacturer service documentation.

Common causes of Err8

  1. 01

    Drain pump connection issue or pump failure

    Part replacement

    A loose wiring connection to the drain pump or a failed pump motor prevents proper water removal, allowing levels to rise beyond the protection threshold. Inspect the pump harness connector for secure seating and test the pump motor for continuity.

  2. 02

    Clogged drain pump filter or drain hose

    Wiring / connection

    Debris buildup in the pump filter or a kinked and blocked drain hose restricts water flow out of the machine, causing water to accumulate to overflow levels. Remove and clean the pump filter and inspect the drain hose for obstructions or kinks.

  3. 03

    Faulty water inlet valve

    Part replacement

    An inlet valve that fails to close fully when the target fill level is reached will continue admitting water into the drum, triggering the overflow protection. Check whether the valve closes promptly when power to it is cut, and replace it if it sticks open.

  4. 04

    Defective water level pressure sensor

    Part replacement

    A malfunctioning pressure switch can send a false signal indicating overflow even when the actual water level is normal. Test the sensor for correct resistance or pressure response values and replace if readings fall outside specification.

  5. 05

    Blocked or damaged pressure sensor hose

    Wiring / connection

    The small rubber hose connecting the pressure sensor to the tub can become kinked, cracked, or clogged with residue, causing inaccurate water level readings that trigger a false Err8. Inspect the hose visually and clear or replace it as needed.

See the test procedure for each cause

Frequently asked questions about Err8

What does Err8 mean on a Haier washer?
Err8 means the washer has detected that the water level inside the machine has risen above the built-in protection threshold. The control board triggers this error to stop the cycle and prevent overflow or water damage. It most commonly points to a drainage issue, a stuck inlet valve, or a faulty water level sensor.
How do I fix Err8 on a Haier washer?
Start by checking that the drain pump is properly connected and that the pump filter and drain hose are clear of obstructions. If drainage appears normal, inspect the water inlet valve to confirm it closes completely after filling. If those components check out, test the water level pressure sensor and its connecting hose for damage or blockage.
Will resetting the washer clear the Err8 code?
A power reset may temporarily clear the Err8 display, but the error will return if the underlying cause is not addressed. If the drain pump, inlet valve, or pressure sensor is faulty, the condition that triggered the overflow protection will repeat during the next wash cycle. A reset is only a useful first step to rule out a one-time glitch before proceeding with diagnostics.
Is it safe to use my Haier washer when Err8 is showing?
You should not continue running the washer while Err8 is active. The error indicates that water has exceeded the safe protection level, and running the machine could result in water leaking onto the floor or internal components being exposed to excess moisture. Stop the cycle, drain any standing water, and diagnose the cause before resuming use.
How much does it cost to repair a Haier washer showing Err8?
Repair costs vary depending on which component is at fault. A drain pump filter cleaning or hose clearing involves no parts cost, only labor time. Replacing a drain pump typically runs in the range of $75 to $200 including parts and labor, while a new inlet valve or pressure sensor generally falls in the $50 to $150 range. A professional diagnostic visit may add a separate service call fee on top of part and labor costs.

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