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Thread: RTAC noise
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02-15-2010, 09:00 PM #1
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RTAC noise
Wa testing a small RTAC today and noticed after shutdown a tapping noise coming from both discharge lines. Machine is an 03 model...could my check valves be cutting up?
r404a
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02-15-2010, 09:03 PM #2
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I thought that was normal for the check valves to make noise..lol
lots of them do it. I don't think anything is wrong..besides its a trane..
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02-16-2010, 06:04 AM #3
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That loud slap you hear after shutdown is the checkvalve(s) closing . Its normal .
You bend em" I"ll mend em" !!!!!!!
I"m not a service tech.. I"m a thermodynamic transfer analyst & strategic system sustainability specialist
Whooo Hooo spring at last , time to get the toys out ........vrrrroooooom !!!!
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02-16-2010, 08:29 PM #4
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thanks guys
trouble is, it was not a single slap, it was a continuos tapping for the remainder of the day. strange
r404a
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02-17-2010, 03:04 PM #5
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Sounds like the stepper motor in the carrier EXV'S sounded like that when they indexed.
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02-17-2010, 08:02 PM #6
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Did you have water flow while it continued to make noise ??? If so it could be that the different temperature of water was causing refrigerant migration making the check valves flutter????
You bend em" I"ll mend em" !!!!!!!
I"m not a service tech.. I"m a thermodynamic transfer analyst & strategic system sustainability specialist
Whooo Hooo spring at last , time to get the toys out ........vrrrroooooom !!!!
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