Main information
Don't self-diagnose it
A washing machine tripping the RCD is a safety signal. The exact cause can't be worked out from here: only by checking it in person.
Safety first
Unplug the washing machine if the RCD tripped when connecting it, and don't use it again. Don't test anything else: call and a professional electrician will come out to check it.
Next step
An electrician checks the installation and the appliance and diagnoses where the problem is. Until then, we don't know for certain what it is.
Frequently asked questions
How do I know if it's the washing machine or the installation?
You can't tell without a check; don't test it yourself by plugging in other appliances, the electrician determines it safely.
Does the washing machine need an independent circuit?
Recommended, especially if other high-consumption appliances share the same circuit.
Should I check the appliance or the installation first?
You don't need to check either yourself; the electrician determines during the visit whether it's the installation or the appliance.
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