Galaxy Tab S8 + USB-C Port and triangle symbol with lighting bolt

[LegoMcLaren]

Hi fellow Samsung Members, 

I have a Samsung Galaxy Tab S 8 plus. There a yellow triangle symbol with a lighting bolt when I charge the tablet using the USB-C port. I'm using a Samsung USB- C original cable & charger. I've tired another USB-C Samsung cable + charger. I've tries pressed down power & down volume buttons for 15 sec's. Any suggestions or similar experiences???

Thanks 

[Bellabam8]

Have you cleaned the USB-C port with a toothpick or soft toothbrush?

[LegoMcLaren]

Thank you have tried that. Doesn't seem to help

[nxmah]

It does give any error like moist or liquid present ?

[LegoMcLaren]

Thank you. No moist or liquid error just the lighting bolt in yellow triangle