The consumers should turn off the affected unit and contact Venmar Ventilation Inc. as soon as possible. Venmar Ventilation Inc. will dispatch a field technician who will inspect and retrofit the affected units free of charge. For more information, consumers may contact Venmar Ventilation Inc. at 1-866-441-4645 between 9 a.m and 5 p.m. ET Monday through Friday, or visit the firm's website . Consumers can also mail Venmar Ventilation Inc. at the following address. SUP 550 Lemire Blvd, Drummondville, Quebec J2C 7W9 Consumers may also view the recall notice on the [NJS_FILE:b50b5b50-9925-4f5b-901a-439953cbbfe3:37550565-27fd-45dc-a2b0-d0f2c44b914c] regarding this Safety Upgrade Program.