Hoping someone out there might have an answer. My heater fan started complaining about a week ago. From an off position to about half power it makes a high pitch chirping sound. At 3/4 to full power, no issues.
Is this an indication of pending failure? Is there something I can do to make it go away (I just purchased a rubber mallet...)? Does anyone know how to get access to it? Is it an easy replacement?
Suggestions are greatly appreciated.