saturday morning on a long weekend we noticed a smell of ozone in the air. The furnace motor was emitting a high pitched hum but not rotating. We shut it off and called Dyand. The technician got in touch with us immediately and within 40 minutes he was at the house and determined that the motor needed replacing. He picked up a new motor and replaced it? Jim, our technician was very polite and friendly. He was efficient in his work and we could not have asked for anyone better. Dyand should be proud to have such an honest and outstanding employee.