adamk
New Member
Posts: 7
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Post by adamk on Dec 25, 2017 20:19:21 GMT
great help, That's really clear and I'll follow that advice, although I'm pretty capable with general mechanics I know next to nothing specific about refrigeration or these machines, so it's really helpful to have that kind of clarification. Thank you again
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Post by timeswelding on Dec 26, 2017 11:08:09 GMT
I heated water with my coffee maker and filled ice trays with it, using them to heat the evaporator. I made sure to be overly sloppy and spill a bunch. Violent boiling could easily be heard. We have had members who have had success using a heat lamp. Much less clean up, I suspect. Just be sure not to heat it beyond what you can stand to touch.
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adamk
New Member
Posts: 7
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Post by adamk on Mar 18, 2018 18:28:10 GMT
to Elec573 and blackhorse, and everyone else that helped, your advice seems to have worked! ( although I've had to repeat the process twice so far) I filled 2 - two liter bottles with hot water and fitted then into the evaporator and then turned the compressor on till I felt cold and then shut it back off repeatedly while refilling the hot water as needed and rotating the bottles to keep the warmest parts on the veins of the evaporator.( especially the lower right as advised) There were lots of gurgling and boiling sounds when the compressor was running, and after doing this for a while, I left it on and it got nice and cold and seemed fine for about 3 weeks, then I found it shut down again and repeated the process, and so far so good. Now that it seems Ive identified what the issue was, does anyone have any further advice for how to folly clear out the thickened oil beyond the process Ive already done? Thanks so much to everyone that helped, Im relieved and so appreciative. Adam
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Post by ckfan on Mar 18, 2018 19:21:56 GMT
Honestly what you are doing is the easiest way to take care of it. The manual suggests adding 4 ounces of R12 but that is impractical now a Days.
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adamk
New Member
Posts: 7
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Post by adamk on Mar 18, 2018 20:11:13 GMT
Okay, thank you.
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Post by elec573 on Mar 19, 2018 3:11:36 GMT
I’m glad it’s working, but every once in a while it wouldn’t hurt to do it again! In fact I should probably do it to mine if you think about it it’s like cholesterol building up in your body . It needs a good flush once in a while to keep things moving.
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ginny
New Member
Posts: 14
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Post by ginny on Sept 6, 2018 18:44:16 GMT
Hello again friends, Im going to try this step also. After what seemed like brilliant success a week ago when several sharp taps maybe freed a stuck float, my ckb16 defrosted itself yesterday. I've turned it off and on a few times and given some more whacks but no luck. Motor runs continuously when turned on, no cooling, no cycling. But also no frightening over heating temp like I noted in previous posts. Ginny
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ginny
New Member
Posts: 14
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Post by ginny on Sept 6, 2018 19:11:14 GMT
Hello again friends, Im going to try this step also. After what seemed like brilliant success a week ago when several sharp taps maybe freed a stuck float, my ckb16 defrosted itself yesterday. I've turned it off and on a few times and given some more whacks but no luck. Motor runs continuously when turned on, no cooling, no cycling. But also no frightening over heating temp like I noted in previous posts. Ginny
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Post by ckfan on Sept 6, 2018 23:38:46 GMT
Hmm, that really sounds like what is happening to my flat top. It does the exact same thing essentially. Did the compressor sound odd? Mine sounds very loud and clicks when that happens. The manual says that is due to the compressor running in a vacuum and not pulling in a full charge of oil when the oil pump turns.
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Post by turbokinetic on Sept 6, 2018 23:39:47 GMT
Hello again friends, Im going to try this step also. After what seemed like brilliant success a week ago when several sharp taps maybe freed a stuck float, my ckb16 defrosted itself yesterday. I've turned it off and on a few times and given some more whacks but no luck. Motor runs continuously when turned on, no cooling, no cycling. But also no frightening over heating temp like I noted in previous posts. Ginny
Hi Ginny. Seems like there has been some sort of rush of debris which has hit the float; or a loss of refrigerant has crept up on it.
The overheating will take a very long time to develop. It would need to run without circulating refrigerant for "hours" or "days" to get that hot. When it's not cooling, the motor is not working very hard and therefore it doesn't produce a lot of heat.
One of the downfalls of the SO2 refrigerant is that when frosted, the evaporator runs at less than atmospheric pressure. Therefore; if there are any leaks they will draw in moisture and air instead of leak out refrigerant. The moisture will react with the SO2 and create an acidic compound. This will react with materials in the system, causing corrosion, and possibly degradation of the oil. These things can give rise to residues which plug the float.
With the system off and at room temperature, spray some soap solution on the lines where they join the evaporator (cold part inside the cabinet) Look closely and ensure there are no areas which are leaking. If there is a leak, you should smell the SO2 but sometimes maybe not.
If you see any leaking, it's possible the system has taken on air and moisture and needs repairs.
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Post by coldspaces on Sept 7, 2018 4:43:05 GMT
It may be that the float is simply sticking, from wear or other reasons. I don't think it is blocking with crud but you never know as we can't see inside. Supco S8 refrigeration oil additive might free it up but not a DYI thing for most.
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