Popping noise on Kenwood dishwasher

Hi All,

I have a Kenwood KID60S18 dishwasher which has developed a popping sound during its cycle. It’s a distinctive pop at about a 1 second interval during the normal running cycle (not during fill/drain). Has been doing it for a few months and is constant, not an intermittent issue. It’s not from any loading issues either – definitely a component issue but I just don’t know what.

Any ideas?

Thanks in advance.