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Do’s and Don’ts. Do’sandDon’ts. Do’s and Don’ts. Do read all the instruction leaflet before commencing installation. Do install each fan with a double pole-isolating switch. Do make sure the mains electricity supply is switched off before attempting to make electrical connections or carry out any maintenance or cleaning. R Guarantee Customers outside UK - see international below. UK: The fan is guaranteed against defects for 3 years from date of purchase. Please keep you purchase receipt. If you