E33
Zanussi
Pressure System / Heater Safety Conflict
Washer-dryer shows E33 and may have issues heating or controlling water level correctly.
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Safety Warning
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.
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Possible Causes
Faulty pressure sensor, Blocked pressure chamber, Wiring fault between pressure sensor and PCB, Defective heater safety circuit on PCB
How to Fix / Troubleshooting
Safety: Disconnect power and allow the machine to cool before working near the heater or tub.
- Clean pressure system: As with E31/E32, inspect and clean the pressure hose and chamber to ensure accurate level detection.
- Check sensor wiring: Verify that the harness from the pressure sensor to the control board is intact and firmly connected at both ends.
- Inspect heater wiring: Check for loose or burnt connectors at the heater terminals and NTC sensor.
- Component replacement: Replace the pressure sensor if suspect. If E33 persists, the PCB's safety logic may be faulty and the board should be replaced by a professional.
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Repair Difficulty
Professional Required
5/5
Required Part
Pressure Sensor
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