After a couple of months of use, the AH1500 bump head on my ST1500SF trimmer started feeding only one end of the line. This is with new 0.095" round line (or hex line). EGO sent me a replacement under warranty. The replacement bump head, after a few more months of use, started having the same problem. After winding on a new line, without touching or bumping the head to the ground, just running the motor, the string on one end starts disappearing. After another month of use, both ends of the line disappear (again, without bumping the head at all), so it's completely useless.
There is no debris in the head assembly, and it has less than 10 hours of use. Any ideas on what's going on?
EGO support indicates there is a new bump head model AH1530,
but the warranty for the original was only for 30 days.The older bump head is not even available at H.D. online.