Left side Line/Phono not producing sound - Traktor Kontrol S4 Mk 3

Angrish

Hi, I've recently tried connecting my turntables to Traktor Kontrol S4 Mk 3, however trying both Line and Phono (A and C inputs) connections, the Left side speaker is not producing any sound. I've tried changing cables, alternating between Line and Phono, but can't get any sound from the Left side (White Input). Either I am missing something glaringly obvious or there is a physical issue with the Traktor S4 itself. The Right side is working perfectly fine. Can anyone offer any suggestions or do I need to have the unit itself repaired?

lord-carlos

When you play digital files, do you have sound from booth speakers?

In the input routing menu when you play something from vinyl, do both left and right indicator light up? Left and right are routed?

Angrish

No, there is no movement on the left side indicator when I’m running A or C, B and D are working fine.

Angrish

Apologies, I should add, when I'm just running the system without adding the turntables, then yes, both sides work fine.