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sktn77a -- My noise definitely comes from the furnace, not the grill. I've even used my nurse-wife's stethescope to localize it!

But I did have that vibrating grill problem immediately after...

ampulman -- Yes, that's how it is for me too. The thermostat has been reading 68 for nearly an hour before it drops to 67 and kicks up the modulation.

Moose -- I can try that. I've not heard...

Moose -- our set back is 8 degrees, from 68 down to 60, starting at 11pm and resuming by 830am.

Beenthere -- sounds reasonable. Just surprises me that the temp can drop so much before the furnace...

I got a new Rheem modulating furnace and thermostat about 6 weeks ago. Love it.

But in the process of recovery from night set back it does an odd thing (I think). It runs full speed for the...

Finally back!

So I removed the lower cover and looked for any possible shipping brackets on the blower/wheel. I couldn't see any. Of course, I don't really know where to look or what to look...

Shipping bracket on blower wheel...

I'll have to check on that. But it will take me a day or so before I can.

Thanks.

I asked him about that. He heard it also, but it didn't sound that strong to him. He said let it run a few weeks and see what I think since a new furnace will make new noises. True. Call him back...

It's about 6 weeks old. What a beauty! House has never been so uniformly comfortable. And so quiet! Except for one thing -- it makes a whining tone in the middle speeds. Isn't there at high...