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Error code reference

Haier Washer Error Code Err11

Heating resistor relay may be broken.

Haier codesHaier washer codes

Heating resistor relay may be broken.

First step from the service manual

If after plugging in the error appears again, the power board must be broken – replace it.

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 Err11 means on a Haier washer

Err11 on a Haier washer indicates a fault detected in the heating resistor relay circuit. The heating resistor is the component responsible for warming the wash water to the selected temperature, and its operation is controlled by a relay located on the main power board. When the control system detects that this relay is not functioning correctly, either due to a failed relay contact, an open circuit, or a short within the board circuitry, it triggers Err11 to prevent unsafe or ineffective operation.

The diagnostic process for Err11 is straightforward but decisive. If the error appears immediately upon plugging the machine back in, this points directly to a failed power board rather than a transient fault or loose connection. A relay that has burned out or whose contacts have welded or opened will produce this error consistently on startup, since the board self-checks relay states during initialization. In this scenario, the power board itself must be replaced, as relay components on these boards are typically not serviceable individually.

Because the fault is tied to relay behavior on the power board, external wiring issues or the heating element itself can also contribute if they caused the relay to fail in the first place. Technicians should inspect wiring between the board and the heating resistor for signs of burning, corrosion, or damage before installing a replacement board, to avoid repeating the failure on new components.

Source: manufacturer service documentation.

Common causes of Err11

  1. 01

    Failed heating resistor relay on the power board

    Part replacement

    The relay responsible for switching the heating resistor on and off has burned out or its contacts have failed. This is the most direct cause of Err11 and is confirmed when the error reappears immediately after plugging the machine in.

  2. 02

    Faulty or damaged power board

    Part replacement

    Beyond just the relay, broader power board failure can trigger this error. If the board shows signs of burning, discoloration, or damaged traces near the relay circuit, the entire board requires replacement.

  3. 03

    Wiring damage between the board and heating resistor

    Wiring / connection

    Burnt, corroded, or disconnected wiring in the circuit between the power board and the heating element can cause abnormal relay readings. Inspect the wiring harness for visible damage before replacing the board.

  4. 04

    Heating resistor failure causing relay overload

    Part replacement

    A shorted or open heating resistor can place excessive load on the relay, causing it to fail. Check the heating element for continuity to rule this out before installing a new power board.

See the test procedure for each cause

Frequently asked questions about Err11

What does Err11 mean on a Haier washer?
Err11 on a Haier washer indicates a problem with the heating resistor relay, which is a component on the main power board that controls the water heating element. The control system has detected that this relay may be broken or non-functional. If the error returns immediately after unplugging and replugging the machine, the power board needs to be replaced.
Can I fix Err11 on my Haier washer myself?
The fix for Err11 typically involves replacing the main power board, which requires working with internal electrical components. A technician should inspect the wiring harness and heating element first to confirm the board is the root cause. If you are comfortable with appliance repair and can source the correct replacement board, the swap is a defined procedure, but those unfamiliar with electronics should hire a professional.
Is it safe to use my Haier washer while Err11 is displayed?
It is not recommended to continue using the washer when Err11 is active. A faulty heating relay could mean the heating element is not being properly controlled, which creates a risk of overheating or ineffective washing. Power the machine off and arrange for service before running further cycles.
Will resetting my Haier washer clear the Err11 code?
Unplugging the washer and plugging it back in is actually the primary diagnostic test for Err11. If the error reappears immediately on startup after doing this, the power board is confirmed as faulty and a reset will not resolve the issue. A reset alone will not fix an underlying relay or board failure.
How much does it cost to repair a Haier washer showing Err11?
Repair costs depend on whether just the power board needs replacement or if additional components like the heating element or wiring harness are also involved. Power board replacement on a washer typically ranges from around 100 to 300 dollars including parts and labor, though prices vary by region and technician rates. Getting a diagnosis from a technician first can help confirm exactly which parts are needed before committing to the repair.

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