Has this just started to happen again?
It’s often a belt tension issue, there are a few posts about this, you can try the suggestions support has and report back.
Here’s one example: Gear and/or belt slippage?
Has this just started to happen again?
It’s often a belt tension issue, there are a few posts about this, you can try the suggestions support has and report back.
Here’s one example: Gear and/or belt slippage?