A/C just started making a deep hum...
I installed a 2nd A/C in the bedroom last summer, a Mach 8. I replaced the fan blade to make it quieter and it's worked great all year. But just recently...just as you're turning the A/C on it sounds...
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Yes, I am the OP and just had 2nd round of this. 2nd bolt fell out, had to pull up the A/C to get it back in. 3rd was about to go. What a terrible design. It was still making a bad sound and everything was tightened so I pulled the fan blade and it stopped so I examined that and yep...big crack on the hub. Glad I didn't have a blade crack off. There was wear on the underside of the tips of the blades. Found people via another web forum that said they had the same problem and that RVP replaced the blade for them so I just wrote them. Hope that is the case as I'm not really happy about the idea of spending another $35+ to get a new blade when I already had to upgrade that due to *more* poor design. Did no one give this model a once-over before they sent it to market? I only compressed the foam about half. Maybe a little more. As much as I could with my little "girl hands".
These lock-tite things -- will they send those with the new blade (if they send one) or do I need to pick them up at the hardware store. Are those those rings that are cut and twisted a little? They go between the bottom top face of the bottom of the unit and bottom of the rubber spacer?
Glad I decided against going up and trying to find the source of the vibration while it was running with the shroud off. :/
These lock-tite things -- will they send those with the new blade (if they send one) or do I need to pick them up at the hardware store. Are those those rings that are cut and twisted a little? They go between the bottom top face of the bottom of the unit and bottom of the rubber spacer?
Glad I decided against going up and trying to find the source of the vibration while it was running with the shroud off. :/
