The National Labor Relations Board has accused air-conditioner maker Fedders Corp. of unfair labor practices against workers locked out of the company's Rotorex Co. plant near Walkersville.
The company illegally fired 345 employees of the air compressor plant in Frederick County and failed to bargain in good faith with their representative -- the International Union of Electronic, Electrical, Salaried, Machine and Furniture Workers -- according to the complaint, filed Friday.
Fedders doesn't comment on pending NLRB complaints, spokesman Kent Hansen said.
The NLRB scheduled a hearing June 8 in Frederick on the allegations. The company has until then to file a response to the complaint.