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Techdesk, Service Engineer
Category: Appliance
Satisfied Customers: 16409
Experience:  Whitegoods engineer working for a multibranded national company in the UK
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Bosch logixx 8 washing m/c trips RCD within 2 mins of start

of cycle repeats about every... Show More
of cycle repeats about every 2 - 3 mins. Checked heater with leads disconnected gives 20.6 ohms reading and temp sensor reading is 20,100 ohms
Submitted: 3 years ago.
Category: Appliance
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replied 3 years ago.
You need to check for earth leakage on the heater.

If it's leaking to earth, it will trip the RCD.

Did you try running the machine with the heater disconnected?
If it doesn't trip, it's a near certainty the heater is at fault.

Let me know what you find.
Customer reply replied 3 years ago.

will try with heater disconnected, if replacement heater is required what is the part no and where do u recommend I get it from


Techdesk, Service Engineer replied 3 years ago.
To give a part number I would need the E-Nr number of the appliance.

I don't recommend any supplier over another.

You can get it from Bosch, or numerous other online suppliers.

Customer reply replied 3 years ago.

E Nr - WAS28460GB/08

Techdesk, Service Engineer replied 3 years ago.
OK, thanks for that.

Is it the element at fault?

Customer reply replied 3 years ago.

M/c runs without tripping the rcd with the heater element isolated.


Techdesk, Service Engineer replied 3 years ago.
Thanks for that.

I'd suggest changing the element.
It looks like the insulation resistance is dropping as it heats up.

Take the heater out, see if it's got some damage, this can allow water to seep in and short it out.

Once replaced, it should cure the fault on the machine.

Hope this helps