Fasco A200 Furnace Draft Inducer Blower Fan Motor Replacement - Compatible with Lennox 7002-2975 & 31L5501 - HVAC System Repair Part for Home Heating Maintenance

This inducer fan assembly fit my G40UH-36A-070-2 Lennox Furnace. Here are a few things you need to be aware of if you have the same furnace. The new fan assembly comes with one gasket. In my application I needed two gaskets. There is a metal plate that comes off the original fan assembly you need to use. The second gasket goes between the metal plate and the fan assembly. The metal plate provides a hole restriction sized for the BTUs for the furnace. The plate also holds the safety switch that is activated by the inducer fan. See photo of original fan assembly with the metal plate beside it.The second gasket is easy to make. Instead of buying an OEM gasket that cost $25, I purchased high-temperature gasket material from Amazon. I think the sheet was 10” x 7”. You simply cut out a hole in the center. The 10 x 7 gasket is almost a perfect fit for the plate. It was $10 on Amazon.You will also need to purchase new mounting screws, for two reasons. First, the original mounting screws are badly rusted, if the furnace is several years old. My furnace is 22 years old. Secondly, you need longer screws to compensate for the thicker gasket that comes with the new fan assembly. The screws you will need are #8 x 3/4 sheet metal screws. One inch long screws would also work. You’ll need five #8 x 1/2 inch screws for the top exhaust, metal to metal there. Two 1/2 screws hold the safety switch to the metal plate, metal to metal there. They are 13 cents each most any hardware store.This fan is super quiet. The old fan was making a terrible racket before it completely failed. Do not wait to change out an inducer fan assembly that is making noise. If it shorts out, it can damage your control board.I cleaned off the old gasket material residue with a scraper. The new type gasket material appeared to be far superior to the original gasket material. The hardest part is lining up the mounting holes. You can’t see where the mounting holes are located. It was a lot easier to use a long nail to feel for the mounting holes than trying to locate them with the 3/4 screws. I used four nails with wide heads to hold the unit in alignment, until I could get a couple of the sheet metal screws secured. Once the unit is aligned over the mounting holes, it is easy to start each sheet metal screw. I removed one nail at a time and replaced it with a screw.I would definitely buy this fan assembly again. It appears to be well made, with all mounting holes in perfect location. Everything fit perfectly.