E33
What code E33 means on a Zanussi washing machines, what causes it, and which part to check first.
● SEVERITY: HIGH
Zanussi E33 means: Incongruency between pressure switch readings the two pressure monitoring systems are not in agreement. The documented cause is: Hydraulic circuit of pressure switches (blocked or leaking). Failed electronic pressure switch. Failed secondary pressure switch. Wiring fault. Main PCB fault.
What E33 means
Incongruency between pressure switch readings the two pressure monitoring systems are not in agreement
The display shows E33 and the machine stops until the fault is cleared.
What the technical documentation says
Causes documented in the technical source published by whitegoodshelp.co.uk
| DOCUMENTED CAUSE OR CHECK |
|---|
| Hydraulic circuit of pressure switches (blocked or leaking). Failed electronic pressure switch |
| Failed secondary pressure switch |
| Wiring fault |
| Main PCB fault |
Replacement parts
Tools you'll need
Before you open anything
Unplug the machine and close the water tap before removing any panel. Water and mains electricity sit centimetres apart inside a washing machine. If the drum still holds water, drain it from the filter first — it can be scalding.
What to check, in order
From the quickest check to the one that needs a technician.

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Frequently asked questions
What does E33 mean on a Zanussi?
Incongruency between pressure switch readings the two pressure monitoring systems are not in agreement The documented cause is: Hydraulic circuit of pressure switches (blocked or leaking). Failed electronic pressure switch. Failed secondary pressure switch. Wiring fault. Main PCB fault.
Can I fix E33 myself?
It depends on the part involved: Hydraulic circuit of pressure switches (blocked or leaking). Failed electronic pressure switch. Failed secondary pressure switch. Wiring fault. Main PCB fault. Clearing a filter or straightening a hose is within reach of anyone; anything behind a panel means mains electricity and water together — that is a job for a technician.
Does Zanussi use other codes on this appliance?
Yes: we document 44 other codes for Zanussi on this washing machines. They are listed at the bottom of this page, each with its own meaning.
Does the same code mean the same thing on other brands?
Often not. The same two characters can point to completely different faults depending on the manufacturer — always check the page for your own brand.

