I think the bearings for fan in my A/C condenser unit (~10 years old) are going out…at least the high-pitched noise reminds me of a similar issue. Here is a short vid with sound: Bad Bearings on my A/C Compressor?
I don’t think this is an issue that is typically “DIY” serviceable, e.g. squirt some lubrication somewhere…right? If not, any suggestion as to where to source a new motor in the Dallas area? Preferably north of 635 and East of 35E?
Try these guys, they are open tomorrow (Sunday) until 1pm. I have no personal experience with them or their prices. I just know of them. A condenser fan should be a pretty universal part
For a temporary fix it wouldnt hurt to try oiling the shaft end bearing. It should be sealed but if water got in there may be a gap for oil. The capacitors go bad frequently so get a new one and a spare when you get the new motor.
Will do re: some oil (3-in-1 is OK?)…although I noted that the intermittent squealing stopped when temp came down below boiling point an hour or so ago. I’ll pay attention to when it starts tomorrow just to see if there is a correlation.
Actually, replacing is so straightforward and they go out frequently enough and cost so little that I replace every 2 years as part of my yearly maintenance routine on the system. And I keep a spare around already. But capacitor in there now is less than 1 year old, give or take. Thanks for mentioning it, though.
The one (only) fan replacement they appear to offer indicates 1/3 HP, but the “silver tag” on my unit indicates current fan is 1/5 HP. Should I care? (nb: there’s no RPM rating indicated on my current motor that I can read, but unit on offer at DallasHVAC website place says 825-1075.)
Google the condenser model & you can get the fan specs.
The 825-1075 tells you it will run at both speeds (note some systems require a programming cable to set the speed. I avoid these OEM fans at all costs and buy a motor spec’d for the right speed and HP).
Buy the replacement on Jungle and keep it handy for a cool(er/ish) day.
Heads up, the shaft will be rusted and getting the fan off will be a beast.
100 grit paper to knock it down.
Then WD40+propane to work it off.
If that gives you troubles, I have a fan puller you can borrow (Beltline & Marsh).
I’ve not heard of this company/site, jungle(dot)com doesn’t seem to exist, and various searches with keywords like “HVAC parts jungle” don’t return anything meaningful, either. Can you point me in right direction, please?
I’ve actually never heard of a “multi-HP” motor. And especially surprised that whatever HP it may be running at, fan speed (RPM) appears to be the same…?
It takes a different spec of capacitor than my current one, though…sigh.
It is just a 1/3 HP motor, and if you put a fan that only needs a 1/6 HP motor it will only draw current to make 1/6 HP. It is simply marketing labeling to be clear that it can be used to replace any of those lower power rated motors.