First, though, she decided to call out the repair man who came the next morning and spotted the problem straight away. "Do you realise you've only got it on a 400 spin?"
And it was all down to George who, on nanna's day to do the childcare, had turned the dial from the position of 12 o'clock (1200 spin) to 6 o'clock (400 spin).
It's something we'll have to keep an eye on too – he loves pressing the on-off button on our washer as a row of red lights come to life every time the machine is called into action.
Thankfully, the repair man saw the amusing side and let nanna (and George) off with a warning!