i wouldve said damp charcoal, or plugged airholes. when u kick the legs, also reach inside and tap the ring.
wehn im fighting it, i offset the lid a little to leave a 1/2 inch gap around one side of the lid..helps airflow and then reseat it once temps are up.
wehn im fighting it, i offset the lid a little to leave a 1/2 inch gap around one side of the lid..helps airflow and then reseat it once temps are up.