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How do, I recently moved in to a house in Hull - it's a 3 storey town-house. The only smoke alarm in the property is one on the first (middle) floor - but it doesn't seem to work. I have already purchased a few smoke alarms, a heat alarm and a CO alarm for the property to put up myself, but should the landlord have provided us with at least one smoke alarm? What are the rules regarding whether it should work or not? If it just needs the battery changing is that acceptable?