Chuff me forgot to do that. And should have realised always having my mind blown. To be honest gave me a right chuckle that response. One our chargehands used to say that. When telling him having difficulty tracing a fault. Him “as tha checked fuse and themista resistance” Reply “ No ya daft fkr”
Googled it for you but the only similar query came from a lass who said hers were working, then hey weren’t then they were weren’t then they were, which unfortunately is the total opposite of your problem