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Post by birkie on Feb 21, 2014 17:45:56 GMT
Hi all, I thought it would be useful to collect some videos of the sights and sounds of various models of monitor top (and derivative) refrigerators in action (be them healthy or sick). I know I'd never heard a CA run at all until ChrisJ posted a video to a thread in order to help demonstrate the difference between a CA running at 60Hz vs 50. It's nice to understand what that "CA rattle" people keep taking about now sounds like. Anyway, here's an unrestored CK-2-B16 we got a few weeks ago, starting up for the first time in about a week www.youtube.com/watch?v=22rtgvxpWsgSome notable aspects: - The compressor noise is really audible at the beginning, but has died down to a near whisper after 30 seconds
- Boiling sounds from the evaporator begin within 10 seconds of startup.
- 2:42 - this is what the fully involved evaporator sounds like.
- 3:07 - With the door closed, the compressor is hardly above the ambient noise level of the room.
- 4:15 - Shutdown. You can hear the soft puffing sound (from the unloader?) as it spins down.
Some other videos of other machines I've found:
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Post by ChrisJ on Feb 21, 2014 17:59:09 GMT
Thanks for sharing the video. I've wanted to hear a CK machine running.
My video doesn't have any CA rattle present in it. When a CA machine rattles it has a very loud metallic clicking sound to it. Perhaps someone can record a video of a CA machine running cold without a heater. If I get a chance the next time I am at my parents house I will try to do it.
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Post by birkie on Feb 21, 2014 18:06:17 GMT
Thanks for sharing the video. I've wanted to hear a CK machine running. My video doesn't have any CA rattle present in it. When a CA machine rattles it has a very loud metallic clicking sound to it. Perhaps someone can record a video of a CA machine running cold without a heater. If I get a chance the next time I am at my parents house I will try to do it. Huh, so it's not that little "knock knock" at the end? I guess it's good to have posted then, now I'm even more curious. Thanks!
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Post by ChrisJ on Feb 21, 2014 18:12:45 GMT
Thanks for sharing the video. I've wanted to hear a CK machine running. My video doesn't have any CA rattle present in it. When a CA machine rattles it has a very loud metallic clicking sound to it. Perhaps someone can record a video of a CA machine running cold without a heater. If I get a chance the next time I am at my parents house I will try to do it. Huh, so it's not that little "knock knock" at the end? I guess it's good to have posted then, now I'm even more curious. Thanks! Nope, the first loud click is the thermostat opening and the second click is the unloader. The growl / buzzing sound on startup is the unloader as well, apparently it makes sound on CA machines due to the magnetic field and location of the unloader. I used a fairly sensitive USB microphone sitting right next to the machine to record that so a lot of things may sound kind of loud. I think your CK machine has the same controls so the click of your thermostat should be comparable. The CA running is very quiet as long as its working properly. During that video you couldn't hear it running more than a few feet away in a dead silent basement. EDIT : Ah, you mean the sound AFTER all of that. That I believe was the float rattling around but its not the "CA rattle".
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Post by birkie on Feb 21, 2014 18:46:48 GMT
Nope, the first loud click is the thermostat opening and the second click is the unloader. The growl / buzzing sound on startup is the unloader as well, apparently it makes sound on CA machines due to the magnetic field and location of the unloader. I used a fairly sensitive USB microphone sitting right next to the machine to record that so a lot of things may sound kind of loud. I think your CK machine has the same controls so the click of your thermostat should be comparable. The CA running is very quiet as long as its working properly. During that video you couldn't hear it running more than a few feet away in a dead silent basement. EDIT : Ah, you mean the sound AFTER all of that. That I believe was the float rattling around but its not the "CA rattle". Huh, the explanation for the growl/buzzing sound is fascinating. Interestingly, I've never heard the thermostat on my CK - I've never run it long enough to bring the cabinet down to temp and have the thermostat start cycling it. The door has no gasket, upper cabinet seals are questionable, so I never tried.
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Post by jhigdon2 on Feb 21, 2014 19:02:19 GMT
Chris. Your CA A sounds exactly like mine. The A machine has that distinctive sound that is a little deeper than the B.
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Post by ChrisJ on Apr 20, 2014 18:10:22 GMT
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Post by cablehack on Jun 5, 2014 23:48:41 GMT
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Post by jhigdon2 on Jun 6, 2014 1:10:24 GMT
That's interesting. The rpm sounds just a tad slower than mine, but other than that it's the same. Same clank at start up, same unloader sound at shutdown too.
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Post by 35ckmonitort on Jul 9, 2014 8:06:56 GMT
Well, figured I allowed enough time for the heater to warm up so, I switched it on this evening. Here's a video of it running. It's not nearly as loud in person as it sounds on the video. But, since I'm new to DR's, I figured I'd let the experts tell me. I also put the camera in the evaporator so I could catch the sounds in there.
What do ya guys think?
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Post by coldspaces on Jul 9, 2014 12:29:18 GMT
Yes the video does makes it sound loud. The evap sounds normal to me. Compressor sound is a little too metallic too me. Could be the heater needed too warm up longer or this pig evap is trapping some oil and needs too be heated up for oil return.
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Post by allan on Jul 9, 2014 14:15:37 GMT
Well, figured I allowed enough time for the heater to warm up so, I switched it on this evening. Here's a video of it running. It's not nearly as loud in person as it sounds on the video. But, since I'm new to DR's, I figured I'd let the experts tell me. I also put the camera in the evaporator so I could catch the sounds in there. What do ya guys think? Sounds like an oil issue. How long did you let the heater warm up the oil before starting? Is the evaporator completely frosted on the outside?
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Post by 35ckmonitort on Jul 9, 2014 17:02:07 GMT
I had the machine plugged in for about 24 hours. I plugged it in Monday evening around 8 or 9 and then turned it on around the same time Tuesday evening. After an hour, the pig was in a cold sweat, no ice that I could see but, the lower left corner was getting colder to the touch and the bottom half was cold... The very top of the pig was cool but not cold.
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Post by allan on Jul 9, 2014 21:47:52 GMT
I had the machine plugged in for about 24 hours. I plugged it in Monday evening around 8 or 9 and then turned it on around the same time Tuesday evening. After an hour, the pig was in a cold sweat, no ice that I could see but, the lower left corner was getting colder to the touch and the bottom half was cold... The very top of the pig was cool but not cold. 24 hours is enough time for a functioning 12 watt heater that is correctly installed all the way into the sheath to drive the SO2 out of the oil sump. I would suggest to carefully inspect the heater to make sure it is fully inserted and if it is then pull it out and make SURE it is heating by holding it in your hand. My latest DR3 had an erratic heater that would heat sometimes but not continuous due to internal problems with the heater. Once you are sure of the heater's performance I would request jhigdon to suggest the next step. What I have learned from him about DR's makes me suspect a plugged float seat or low charge. That is a very nice machine you have there!
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Post by 35ckmonitort on Jul 10, 2014 2:26:34 GMT
Thanks Allan, I appreciate your insight. I'm going to take the name badge off the front of the neck and see what I see in there. Knowing how complete this machine is and how clean it is, it seems that someone took good care of it and probably did some restoration work on it at one point. But, the heater may be original and could be causing problems. I'll keep you guys posted. And thanks for all the compliments on my new fridge... I really appreciate it, I'm very happy with it and hope it will serve me well.
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