Two days ago my England 25 pdvc pellet stove (2 months old) developed an intermittent high pitch whistle that changes with the speed of the fan. What could be the cause of this? Dirt in the blower? Vacuum leak? I clean the inside the burn area of the unit 2-3 times a week with a vacuum but have never cleaned the blower unit or even had the back off since installing in January of this year. Any information or tips on what to do will be greatly appreciated.
Thanks
Frank
Thanks
Frank