I have a Carrier Infinity series 58MVB. Still under warranty.
it worked flawlessly for 2 years. then, a couple months ago, it started making a real loud
intermittent squealing noise.
so I called sears who I bought it from, and they sent out a local contractor. it was
determined it was the inducer motor. The contractor ordered the part, and came a couple
weeks later and replaced the entire assembly.
Intermittent squealing noise is gone.
BUT...the new part makes a constant "grinding or buzzing" noise, hard to explain, kind of a
high pitch whirring. I pointed this out to the contractor when it was first installed, and
he said to give it a few days, sometimes they just need to loosen up a bit from new, but to
call sears again if it continues, as "it wouldn't be the first defective new replacement
part". Fair enough, these things happen.
3 weeks later, the noise on the new part persists, so I call Sears. This time, they send one
of their own service guys out, who insists that the noise its making is perfectly normal and
nothing can be done. I told him the orginal part didnt make this noise for the first two
years. He countered with "sometimes they change the spec of the parts, to make them
universal for a range of furnace models"
While I dont doubt they use the same parts on multiple furnace models, I'm extremely
skeptical about them changing specification - my orginal part was quiet for two years. the
new part (which looked identical to me when the first contractor installed it) is noisy.
Here's the thing - I specifically purchased this model of furnace, not for any fuel
efficiency advantages it might have over others, but because I was told it was a QUIET
furnace, this was top of my wishlist, and I didn't mind paying premium for it. and for the first two years it was quiet. But, now I have an expensive loud HE furnace. I wish I'd gone with the cheaper one..just as loud for less money.
But seriously, can any of the pro installers/service guys confirm that the replacement
inducer motor assembly is just made louder than the original ? like I said, I'm highly
I called Carrier hoping for some technical support, and to get a 'manufacturer says it shouldnt be like this' but they seemed to be more of a sales company, redirecting me instead to the dealer (sears) who is (I think) being less than honest with me, so I'm right back where I started.
I dont understand this, as surely sears would be paid by Carrier for warranty calls ?
Apologize for the long and rambling post.