Electrolux Washer Error Code E34

Error code E34 on an Electrolux washer signals an incongruency between two separate water level sensing systems: the primary electronic pressure switch and the anti-boiling pressure switch 2. The machine continuously compares the readings from both pressure switches during operation, and when their reported water levels disagree with each other for more than 60 seconds, the control board triggers E34 and halts the cycle. This dual-sensor comparison is a safety mechanism designed to prevent both underfilling and dangerous overfilling situations.

The air trap system and associated hoses are the most common root cause of this fault. Each pressure switch relies on a sealed air chamber (the air trap) and a small diameter hose that transmits air pressure changes as water rises and falls in the drum. If either hose is kinked, blocked with detergent residue, cracked, or disconnected, one sensor will report an inaccurate water level while the other reads correctly. This mismatch persists beyond the 60-second threshold and triggers the error.

Beyond blocked hoses, a faulty pressure switch is another likely cause. If the electronic pressure switch or the anti-boiling pressure switch 2 has failed internally, its output signal will not match the actual water level, creating the incongruency the control board detects. Electrical connection problems such as corroded terminals or loose harness connectors at either switch can produce the same symptom. In less common cases, the air trap itself may be cracked or filled with water, disrupting the pressure signal entirely.