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Error code reference

Electrolux Washer Error Code E30

Fault in the analogue (electronic) pressure switch detected by MWM 1.5 control system.

Electrolux codesElectrolux washer codes

Fault in the analogue (electronic) pressure switch detected by MWM 1.5 control system.

First step from the service manual

Read the alarm code and check the electronic pressure switch and its hydraulic circuit.

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

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What E30 means on a Electrolux washer

The E30 error code on an Electrolux washer indicates a fault in the analogue (electronic) pressure switch as detected by the MWM 1.5 control system. The pressure switch is responsible for monitoring water level inside the drum by reading pressure changes in a connected hydraulic circuit. When the MWM 1.5 control module receives a signal from the pressure switch that falls outside expected parameters, or receives no signal at all, it registers this fault and halts operation to prevent overfilling or improper cycle execution.

The hydraulic circuit connected to the pressure switch consists of a small air trap, a thin pressure hose, and the pressure switch transducer itself. Any disruption along this path can cause the control system to misread or lose the water level signal entirely. Common points of failure include a kinked or disconnected pressure hose, a blocked air trap due to detergent residue buildup, moisture intrusion into the pressure switch housing, or an electrically failed transducer that no longer outputs a correct analogue signal.

Diagnosing E30 begins by reading the alarm code through the MWM 1.5 interface and then physically inspecting the pressure switch and its hydraulic circuit. Technicians should check the pressure hose for cracks, blockages, and secure connections at both ends. The pressure switch itself should be tested for correct electrical response across its terminals. If the hose and air trap are clear and the wiring connections are intact, the pressure switch is likely the failed component requiring replacement.

Source: manufacturer service documentation.

Common causes of E30

  1. 01

    Blocked or clogged air trap

    Wiring / connection

    Detergent residue and lint can block the small air trap that feeds pressure information to the switch. A blocked trap causes incorrect or no pressure readings, triggering E30.

  2. 02

    Kinked or disconnected pressure hose

    Wiring / connection

    The thin hose connecting the air trap to the pressure switch can kink, collapse, or detach over time. Inspect the full length of the hose for damage or loose fittings at either end.

  3. 03

    Failed analogue pressure switch

    Part replacement

    The pressure switch transducer can fail electrically, producing a signal outside the range the MWM 1.5 control system expects. Testing the switch terminals for correct resistance or voltage response will confirm this failure.

  4. 04

    Damaged or cracked pressure hose

    Part replacement

    A hairline crack or pinhole in the pressure hose allows air to escape, preventing the switch from building accurate pressure readings. A cracked hose must be replaced to restore correct function.

  5. 05

    Wiring fault between pressure switch and control board

    Wiring / connection

    Corroded, loose, or broken wiring connectors between the pressure switch and the MWM 1.5 control module can interrupt the analogue signal. Inspect the connector pins and wire harness for damage or poor contact.

See the test procedure for each cause

Frequently asked questions about E30

What does E30 mean on a Electrolux washer?
E30 indicates a fault in the analogue electronic pressure switch detected by the MWM 1.5 control system. The pressure switch monitors water level in the drum, and this code appears when the control board receives an abnormal or absent signal from that sensor. The machine will stop operating until the fault is resolved. Diagnosis should start with the pressure switch and its connected hydraulic circuit.
Can I fix E30 on my Electrolux washer myself?
Some causes of E30, such as a kinked pressure hose or a blocked air trap, can be addressed by a confident DIYer with basic tools. Inspecting and clearing the hydraulic circuit requires no special equipment. However, testing the pressure switch transducer for correct electrical output and replacing the switch or wiring harness is better suited to a technician with a multimeter and component knowledge.
Is it safe to use my Electrolux washer when E30 is displayed?
It is not recommended to run the washer while E30 is active. The pressure switch fault means the machine cannot reliably monitor water levels, which could result in overfilling, incorrect cycle operation, or water damage. The MWM 1.5 control system stops the machine precisely to prevent these outcomes, so the fault should be diagnosed and corrected before resuming use.
How much does it cost to repair an E30 error on an Electrolux washer?
Repair costs depend on the root cause. Clearing a blocked air trap or reseating a hose connection involves little to no parts cost, with only a service call fee if a technician is involved. Replacing the pressure switch itself typically runs between $50 and $150 for the part, plus labor costs that can range from $80 to $200 depending on your location and service provider.
Will resetting my Electrolux washer clear the E30 error?
A reset may temporarily clear the E30 code, but if the underlying fault in the pressure switch or its hydraulic circuit is not repaired, the error will return during the next wash cycle. The MWM 1.5 control system will re-detect the abnormal pressure switch signal and trigger the code again. A proper repair of the faulty component is required for a lasting resolution.

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