AEG washing machine shows E34 and may refuse to start heating or may abort the cycle

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Defective multi-level pressure switch, Stuck pressure contacts, Blocked pressure hose causing incorrect readings, Control board interpretation error

Safety first: Unplug the washer.

Clean and inspect pressure system: As with E31/E33, ensure the pressure hose and air chamber are clean and unobstructed.
Replace pressure switch if suspect: If the hose is clear but E34 persists, the multi-level pressure switch is likely faulty and should be replaced with the correct AEG part number.

Due to the complexity of multi-level switches, professional diagnosis is recommended if you are not experienced with electrical testing.

Professional Required 5/5

AEG Multi-Level Pressure Switch

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