Heartsine's investigation of the device confirmed the reported fault, as upon receipt the device was witnessed to be switching on automatically.The fault was attributed to membrane corrosion, which caused a leak between tracks within the membrane, causing the device to switch on automatically.The membrane failure was root caused to the device being subject to storage outside of the indicated conditions.A device powering up automatically will not prevent delivery of shock therapy, and the device was capable of providing a test shock during testing.
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