Tripping circuit.

You don’t but they are the most likely thing to cause an appliance to trip. £20 isn’t exactly a huge outlay to test it. A multi meter would set you back around £15 if you wanted to test it and couldn’t borrow one.
 
hi all,

I believe it is the washer that is tripping the circuit but I am not wholly sure. It is more apparent when the washer is in full flow that the bedroom and hall lights and all the kitchen appliances and plugs appear connected as upon tripping they all go off.

could the washing machine be on the way out, I've plugged the machine into a different socket

what else could be the issue here? any tips on what to look at on the circuit? (wiring is approx 5 years old and the washing machine is this age also) relatively new build too.
I had a similar situation , but in my case the reason was in the water (moisture), and perhaps you have.
 
@psd99

Have you got a pnc code, starts 914 and is on data plate front panel behind door?

I'd generally be suspecting one of four things, manual reset stat, wash heater, dry heater or interference suppressor.
Best way to find out whats causing it would be an insulation test, basically testing for leakage to earth.
What you could do with no meter to test with is disconnect various bits and see what happens.
I've not got a washer dryer in my job list tomorrow but if you are happy to pop top of yours and take a photo I can circle the bits of interest to you.
Top is two 8mm socket screws
Back plate is six 7mm screws
 
It's almost certainly the heater. They corrode with time, and eventually start leaking current to the earth which will trip the RCD.
 
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