AC problem... - http://www.hvacmechanic.com/ Forums
Original message
| tompeij
 |  "AC problem..."
, posted Fri 31 Oct 09:02  
Hello from the UAE!
I am having a problem with our AC unit. About a week ago it starting making this light buzzing noise, like a hummm. Now it's really noticable so I popped the ceiling tile off to take a look. It's coming from what looks like a little motor. I took some pics of it to see if I could find out what it was on the interweb but google came up with no leads. It has the Letters NMB 18705404 and under that it has >PET-FR-GF 30<
If anyone knows what that is that would be great. It looks fairly simple to replace but I need to know what I'm looking for first! I am not sure if I can post pics here but if anyone is interested in seeing them they can email me (tompeij at gmail dot com)
Thanks for any help!
Jason
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Replies:
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| jmar
|  "Re(1):AC problem..."
, posted Sun 2 Nov 15:03
is it the transformer? two power legs on each side? in other words two wires on one side and two wires on the other side? if so its a transformer hum sometimes its not much to worry about. Check for low voltage output and verify its above 24vac also verify the volt amps are sufficent for the load required.
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| | tompeij
| "Re(2):AC problem..." , posted Sun 2 Nov 23:56
Thanks for your reply. I have emailed you pics of the part in question to your hotmail account.
Jason
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