Perhaps oil canning in the duct. Some higher powered furnace flames can resemble a jet sound.
What causes the gas furnace to sound like a door shutting when turning on? After that, it works fine!
Will I have an explosion if my furnace is causing my house to vibrate?
When the doors of the furnace are on, the furnace 'buzzes' very loudly like a large bee stuck inside. If I take the doors off, or only partly put them in place, it is quiet. Is it having difficulty drawing air?
What would be the main cause of having to replace the ignitor on my furnace three times in the last four months?
I hear a whining noise at the end of the furnace's heating cycle. Would this be a light oil or belt replacement?
I'm installing a new draft inducer (exhaust blower) that came with four limit switches that have four different colored dots (white, yellow, red & blue) on them. I have only two limit switches on my furnace, the upper limit switch is blue dotted and the lower is yellow dotted. Am I correct to use the new yellow dotted limit switch since I am only replacing my current yellow dotted lower limit switch?
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Copyright © 2018 HubPages Inc. and respective owners.