But, pieces of lint can sneak past the filter and obtain caught in crevices along the dryer duct. When there’s a buildup of lint, airflow is limited, which may lead to overheating. When the air In the duct gets warm more than enough, it can ignite the lint and induce a dryer fire.tst ivm.clk mmh2 clkh2 achf nopl spfp4 uam1 lsph nmim1 slnm2 crtt s