Author: StephenH
Subject: Heater purge fan
Posted: 06 Nov 2016 at 4:48pm
Are you sure you are not hearing the converter fan? Is it coming from the area of your electrical panel? I'm not sure about the 177. We have th e179, and the converter fan operates when the converter is supplying 12V power. What you are describing sounds more like the converter fan as our furnace does not have a purge motor separate from the main blower.
Subject: Heater purge fan
Posted: 06 Nov 2016 at 4:48pm
Are you sure you are not hearing the converter fan? Is it coming from the area of your electrical panel? I'm not sure about the 177. We have th e179, and the converter fan operates when the converter is supplying 12V power. What you are describing sounds more like the converter fan as our furnace does not have a purge motor separate from the main blower.