I hav a Lennox G5OUH series gas furnace. I recently noticed a funny noise coming from the vents when it was running. I went downstairs and took a look at the furnice. All the lights are operating normaly and the noise sounds like a bearing or something is rattling loose. It seems to be emanating from where the blower is. It only happens when the blower turns on.
Anyone know of any common problems with the blowers on these Lennox furnices. Any suggestions or input would be greatly appreciated.