S8310, S8320, S8330, S8340, S8360, S8370, S8380, S8390, S8510, S8520, S8530, S8590, S8710, S8730, S8790, S8930, S8960, S8990. Maintains effective airflow to prevent overheat of your vacuum. Appliance repairs must always be carried out by a suitably qualified engineer or technician.
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