
Consumers should immediately stop using these books and contact Oxmoor House for a full refund.
About 540,000 (About 951,000 home improvement books with similar faulty wiring instructions were recalled in January 2010)

An AFCI is an electrical circuit protection device (circuit breaker) that detects electrical arcs from cracked, broken or damaged electrical insulation and shuts off power to the circuit before the arcing leads to a fire. An electronic component failure inside the AFCIs can cause the devices to not detect an electrical arc. Although the AFCIs will function as regular circuit breakers, they may not detect an arc fault, posing a safety risk to consumers. Clarifying Statement
Installed AFCIs will be replaced free of charge through electrical contractors. Consumers can return uninstalled AFCIs to the retailers or distributor from whom the unit was purchased for a free replacement unit.
About 700,000