E09
What code E09 means on a Hoover washing machines, what causes it, and which part to check first.
● SEVERITY: HIGH
Hoover E09 means: Triac fault on control board. The documented cause is: Failed triac component on the main PCB. May cause the machine to trip the RCD.
What E09 means
Triac fault on control board
The display shows E09 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 |
|---|
| Failed triac component on the main PCB. May cause the machine to trip the RCD |
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 E09 mean on a Hoover?
Triac fault on control board The documented cause is: Failed triac component on the main PCB. May cause the machine to trip the RCD.
Can I fix E09 myself?
It depends on the part involved: Failed triac component on the main PCB. May cause the machine to trip the RCD. 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 Hoover use other codes on this appliance?
Yes: we document 22 other codes for Hoover 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.

