But, pieces of lint can sneak earlier the filter and obtain caught in crevices along the dryer duct. When there’s a buildup of lint, airflow is restricted, which can cause overheating. When the air inside the duct receives incredibly hot enough, it might ignite the lint and lead to a dryer fire.tst ivm.clk mmh2 clkh2 achf nopl spfp4 uam1 lsph nmi