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If you have questions, contact the manufacturer at the phone number or address listed in the warranty. 2. Before installing, servicing, or cleaning the unit, disconnect the power by turning off the circuit breakers to the outlet box and associated wall switch location. If you cannot lock the circuit breakers in the off position, securely attach a prominent warning device, such as a tag, to the service panel. 3. Installation work and electrical wiring must be done by qualified person(s) in accord