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Post by lyradd on Apr 5, 2019 12:20:28 GMT
Hello, i’m a new member I have a CK 2- D16 and has been in the family since new. I am having a problem with in not continuing to run. I replaced the original control 30 years ago with a single knob control. GE # WR7X128 45 87. It has worked flawlessly until now. It will turn on and run for a few minutes and then turn off. It sounds normal when it runs. Does anyone know what the problem is?
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Post by birkie on Apr 5, 2019 13:43:37 GMT
Hello, i’m a new member I have a CK 2- D16 and has been in the family since new. I am having a problem with in not continuing to run. I replaced the original control 30 years ago with a single knob control. GE # WR7X128 45 87. It has worked flawlessly until now. It will turn on and run for a few minutes and then turn off. It sounds normal when it runs. Does anyone know what the problem is? Need a bit more information. Can you tell whether the overload has tripped (vs, say, the control just malfunctioning?)
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Post by lyradd on Apr 5, 2019 14:49:18 GMT
Not sure... can you tell me where I can purchase a new control?
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Post by ckfan on Apr 5, 2019 15:23:02 GMT
One thing that needs to be checked is whether the relay in the rear is breaking the start contact so that it does not stay energized. The older relays did not have built in overload protection and relied on the control to do that duty. So you have to be careful when making modifications to make sure the system is still protected. If you have a watt meter you could tell easily if the start windings are staying in the circuit too long. Or, as soon as it turns off too quickly you could unplug it and do a continuity check across the plug and see if there is no continuity. If you have a later style type R relay it has an automatic resetting overload which will make a click. Once that happens you would have continuity again. Of course the control could be faulty but we need to make sure that there isn’t something more serious going on first.
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Post by elec573 on Apr 5, 2019 15:35:07 GMT
These fridges are 80 plus years old. You won’t find new parts for them . You can find used parts on eBay or maybe craglist once in a while. Or you might be able to fix the one you have.
Need more information on what it’s doing. If I understand correctly it we’ll start up , run for a few minutes and then shut off .
Is it off long enough to start defrosting ? Does it just continue to cycle on couple minutes then off repeat? How is the frost line on the evaporator? Is it where it’s always been? How is your cord the wiring on these after a lot of years will be rotten?
It might be just oil logged . Some times oil gets stuck in the evaporator . To get it out you need to make it work by putting a pan of very hot water in the evaporator. Try this a few times and see what happens.
If it continues to short cycle check the senseing tube make sure it’s firmly up against the evaporator and not loose .
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Post by turbokinetic on Apr 5, 2019 23:09:36 GMT
Hello, i’m a new member I have a CK 2- D16 and has been in the family since new. I am having a problem with in not continuing to run. I replaced the original control 30 years ago with a single knob control. GE # WR7X128 45 87. It has worked flawlessly until now. It will turn on and run for a few minutes and then turn off. It sounds normal when it runs. Does anyone know what the problem is? Hi, glad you're here on the forum! I am sure we will be able to help you with this problem, however it may take a little more information.
Sorry if the questions seem odd, but these details will help troubleshoot it.
1 - Does the evaporator get cold at all when it is running?
2 - After it turns off, what do you have to do to make it run again? (unplug / plug back in; "fiddle" with control knob; etc.) Be very specific.
3 - How many amps of current are drawn by the compressor during its on-cycle?
Also; do you still have the original control from 30 years ago? I ask because several of us can repair controls. It depends on the type of damage, of course.
Hope to hear back from you! Sincerely, David
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CK2- D16
Apr 8, 2019 12:36:17 GMT
via mobile
Post by lyradd on Apr 8, 2019 12:36:17 GMT
Hello, I replaced this thermostat control in 1988 and it just failed. It is just a single control knob but has a dummy stem for the second knob. Does anyone have or know where I can find another one? The GE part #WR7X128
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Post by birkie on Apr 8, 2019 13:15:05 GMT
Here is a matching part number on ebay: www.ebay.com/i/303081864983?chn=psPlease realize that you have failed to respond to good faith effort to help diagnose the problem. That part may or may not fix the issue. It's the first result in a simple google search. It's also crosslisted to mars #21305. This listing was the fourth result in the same search. It also happens to be a relay, not a control. I suggest you take the offers for help diagnosing the problem seriously.
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Post by turbokinetic on Apr 8, 2019 17:43:41 GMT
Here is a matching part number on ebay: www.ebay.com/i/303081864983?chn=psPlease realize that you have failed to respond to good faith effort to help diagnose the problem. That part may or may not fix the issue. It's the first result in a simple google search. It's also crosslisted to mars #21305. This listing was the fourth result in the same search. It also happens to be a relay, not a control. I suggest you take the offers for help diagnosing the problem seriously.
Many of us here have varying experience levels on many different models of antique fridges. We want to help with proper troubleshooting and save you from wasting time/money; or causing more damage to your machine.
The relay part number is not a thermostat, which further calls into doubt the assumption that the thermostat is the problem.
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CK2- D16
Apr 8, 2019 18:03:53 GMT
via mobile
Post by lyradd on Apr 8, 2019 18:03:53 GMT
Hello Birkie Sorry I didn’t respond quick enough! I have diagnosed the problem as the control. I had my HVAC contractor out to look at it today and after 5 minutes of running normally it shut off and we heard a slight click coming from the control which I replaced 30 years ago as I stated in my previous post. When we disconnected the copper tube from the evaporator a minute later it started up again. So we determined it was a control issue. The relay is working however I did purchase a replacement one but did not hook it up yet. I thank all of you for your help and I apologize again for not responding like I should. The part number you gave me is the # that replaces the control WR7X128??
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CK2- D16
Apr 8, 2019 18:11:28 GMT
via mobile
Post by lyradd on Apr 8, 2019 18:11:28 GMT
On second thought that part#WR7X128 is probably a relay like you said. My mistake. I still had the original package from GE and I assumed it was the control. I did replace the control many years ago nun not sure of that part #. I still need a control
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Post by Travis on Apr 8, 2019 18:15:29 GMT
Look on the control for the part number. I don’t mean to sound ignorant, but the part number should be on it. It’s hard telling what they sold you for it.
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CK2- D16
Apr 8, 2019 18:25:18 GMT
via mobile
Post by lyradd on Apr 8, 2019 18:25:18 GMT
Thanks. I will keep you posted on what I find out
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CK2- D16
Apr 30, 2019 16:08:09 GMT
via mobile
Post by lyradd on Apr 30, 2019 16:08:09 GMT
Hello again... well I purchased and installed a new control and it solved he problem. It ran perfect for about three days and then I noticed a slight rattling noise coming from the compressor and it was no longer getting cold. I unplugged it over night and plugged it back in the next morning and it ran fine and got cold again. No rattling noise. It’s been repeating itself. Gets noisy and melts, I unplug it over night and plug it in the next day and it runs fine for a couple more days. Does anyone have any idea what may be wrong and what to do next to fix it. Down anyone know anyone in Michigan that may be able to repair it?
Thanks again
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Post by ckfan on Apr 30, 2019 18:45:10 GMT
I'm glad that you were able to get it repaired with a new control. I'm sorry that you are having more problems with it. It sounds like one of two things are happening. Either the evaporator is getting oil logged or the unloader in the compressor is getting stuck. This is what I would do first. With the machine at room temperature CAREFULLY turn the unit on and off at regular intervals. Turn it on, wait a minute, turn it off, wait a minute etc. I would do this about 10 times. This will work the unloader back and forth at a higher pressure than normal. This may fix your issue. If the compressor stalls when trying to start, turn it off immediately and wait a few minutes before trying again. Let us know if this works for you. I've had good luck with it in the past for a similar issue.
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