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Error code reference

Midea Washer Error Code E34

Temperature sensor on water heater is open circuit.

Midea codesMidea washer codes

Temperature sensor on water heater is open circuit.

First step from the service manual

Check the temp sensor; unit will work normally but heater will not activate.

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

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What E34 means on a Midea washer

The E34 error code on a Midea washer indicates an open circuit condition in the temperature sensor connected to the water heater assembly. An open circuit means the electrical path through the sensor has been broken entirely, resulting in no signal reaching the control board. The control board relies on this sensor to monitor water temperature during heated wash cycles and uses that data to regulate heater activation. Without a valid sensor reading, the board cannot safely operate the heater element.

This fault is specifically tied to the water heater circuit rather than the general wash temperature sensor used for cycle monitoring. When E34 is triggered, the washer will continue to operate normally through its mechanical wash, rinse, and spin functions, but the internal water heater will not activate. This means cycles that depend on heated water will run with unheated water instead, which can affect wash performance on sanitize or high-temperature settings.

The most common causes include a failed thermistor or thermal cutout in the sensor assembly, damaged wiring between the sensor and the control board, and corroded or loose connector terminals at either end of the sensor circuit. Physical inspection of the sensor wiring harness and connector pins is the recommended starting point before replacing any components. Resistance testing across the sensor terminals can confirm whether the sensor itself has failed or whether the fault lies in the wiring.

Source: manufacturer service documentation.

Common causes of E34

  1. 01

    Failed temperature sensor

    Part replacement

    The thermistor or thermal cutout within the heater temperature sensor has failed internally, breaking the electrical circuit. Resistance testing across the sensor terminals will show an open reading rather than a finite resistance value.

  2. 02

    Broken or damaged sensor wiring

    Part replacement

    The wire harness connecting the temperature sensor to the control board may have a break, burn, or pinch point that interrupts the circuit. Visually inspect the full length of the wiring for signs of damage or chafing.

  3. 03

    Loose or corroded connector terminals

    Wiring / connection

    Connector pins at the sensor end or control board end of the circuit can loosen or corrode over time, creating an intermittent or complete open circuit. Disconnecting and reseating the connectors while inspecting for corrosion or bent pins is a quick first check.

  4. 04

    Thermal cutout tripped or blown

    Part replacement

    Some heater assemblies include a one-time thermal cutout fuse that opens permanently if the heater overheats. If the cutout has tripped, it will read as an open circuit and must be replaced along with investigating what caused the overheating condition.

  5. 05

    Control board fault

    Part replacement

    In less common cases, the control board itself may have a damaged input circuit for the heater temperature sensor, causing it to read the sensor connection as open even when the sensor and wiring are intact. This should be considered only after the sensor and wiring have been confirmed good.

See the test procedure for each cause

Frequently asked questions about E34

What does E34 mean on a Midea washer?
E34 on a Midea washer means the temperature sensor on the water heater is reading as an open circuit, indicating a broken electrical connection in that sensor loop. The control board cannot receive temperature data from the heater sensor, so it disables the heater as a safety measure. The washer will otherwise continue to run normally through its wash, rinse, and spin functions.
Can I still use my Midea washer with the E34 error code?
Yes, the washer will continue to operate normally with E34 active, but the internal water heater will not turn on. Cycles that rely on heated water, such as sanitize or high-temperature wash programs, will run without heat and may not achieve the intended cleaning results. For everyday cold or warm water cycles that use the home hot water supply rather than the internal heater, you may notice little difference in performance.
Will resetting my Midea washer clear the E34 error?
A simple reset will typically clear the displayed error temporarily, but E34 will return as soon as the washer checks the heater temperature sensor again and detects the open circuit. The underlying fault in the sensor, wiring, or connector must be resolved for the code to stay cleared. Resetting without repair is not a long-term solution.
Is it safe to run my washer while E34 is displayed?
Running the washer with E34 active is generally safe because the control board has already responded to the fault by disabling the heater. There is no risk of the heater overheating since it is not operating. However, leaving a known electrical fault unaddressed for an extended period is not recommended, as wiring or connector issues can sometimes worsen over time.
How much does it cost to fix a Midea E34 error?
Repair costs depend on which component has failed. If the issue is a loose or corroded connector, there may be little to no parts cost, though a service call can range from around $75 to $150 depending on your area. A replacement temperature sensor typically costs between $15 and $50 for the part alone. If the control board is at fault, parts and labor combined can range from $150 to $350 or more.

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