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Post by jswynn on Jun 13, 2019 0:12:11 GMT
Yes, that is a picture of it.
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Post by turbokinetic on Jun 13, 2019 10:30:13 GMT
Yes, it has a protruding dimple on top. The only thing that we did to the unit was add an external thermostat. It only cooled down to around 45 degrees when my father in law had it, and when I refurbished it. The original temperature knob wasn't working properly so we by passed the thermostat and installed a new external thermostat. That fridge has worked like a champ for the last 8 years! Properly cooling to whatever temp we set it at. (around 34 degrees) Of course it would frost and freeze up and I would have to let it thaw, but was always on point! The last time I defrosted it, a few weeks ago, it worked just like normal for a few hours and then went south. It does have a small bronze plate inside the door that has "7AL992" on it. Don't know if that is anything though...Thanks for the help! That's good, the protruding dimple in the center of the top confirms it's a CK-type machine. These are the least-likely to have internal problems, based on what we've seen here.
I hope you have a chance to get the motor current and power measurements soon. That really will tell the tale about what's happening.
As for the bronze plate, that's probably a cabinet nameplate. The cooling unit would have its own plate, most likely on the back of the condenser, or on the top surface of the compressor mounting deck, at the rear of the machine. I'm not as familiar with cosmetic details as some of the other guys are; so can't say for sure. But the cooling unit would have its own nameplate, mounted on the cooling unit.
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Post by jswynn on Jun 25, 2019 15:02:39 GMT
Well, I plugged it in using a Power Meter PRO to measure the watts. It starts at zero and continues running until it reaches around 300, then it shuts down for 10-15 minutes and then does it all again.
The ice tray does start to cool while it is running...
Thoughts?
Thank you!
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Post by turbokinetic on Jun 25, 2019 15:12:05 GMT
Well, I plugged it in using a Power Meter PRO to measure the watts. It starts at zero and continues running until it reaches around 300, then it shuts down for 10-15 minutes and then does it all again. The ice tray does start to cool while it is running... Thoughts? Thank you! That's interesting! It should take about 200 watts at its peak while cooling down; then should fall to about 100 when it's running with full cooling.
How many amps is it using while it's running? It shouldn't be taking more than 3.5 amps to draw 300 watts at 0.8 power factor.
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Post by jswynn on Jun 25, 2019 15:34:52 GMT
3.13
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Post by turbokinetic on Jun 25, 2019 16:31:28 GMT
That's about right, I believe.
The next step is to determine where the circuit is breaking when the machine stops.
Do you have the original start / overload relay in the system? Or is it aftermarket?
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Post by jswynn on Jun 25, 2019 16:59:43 GMT
All we did was by-pass the thermostat and hardwire a new one to the housing in the back of the monitor top. I can explain it better over the phone and send pics if you would be able to call at some point. 573-701-2604
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Post by jswynn on Jun 26, 2019 19:40:05 GMT
Everything, besides the thermostat, is original.
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Post by elec573 on Jun 27, 2019 23:28:15 GMT
Like turbo said need to figure out what is shutting it off . Normally it’s the thermostat. How does your thermostats since when to turn your fridge on and off ?
Normally there’s a sensing tube that’s up against the evaporator inside, that tells the fridge when to run . But yours was replaced so I don’t know how yours works.
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Post by jswynn on Jul 6, 2019 14:07:23 GMT
Hi guys! I apologize for my lack of knowledge when it comes to things like this. I'll try to explain as best I can... We bypassed the monitor top thermostat and added a new heavy duty line with a plug on the end. you can plug the fridge straight into to wall and it would work forever! I bought an external thermostat that the fridge plugs into and then we plug the new thermostat into the outlet. The fridge reacts the same way, whether it is plugged into the wall directly or through the thermostat. I have called refrigerator repair companies and they either don't return my calls or won't come out and look at it. It's frustrating because I believe the old fridge is still good. Thanks again!
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Post by turbokinetic on Jul 7, 2019 0:55:16 GMT
Hi guys! I apologize for my lack of knowledge when it comes to things like this. I'll try to explain as best I can... We bypassed the monitor top thermostat and added a new heavy duty line with a plug on the end. you can plug the fridge straight into to wall and it would work forever! I bought an external thermostat that the fridge plugs into and then we plug the new thermostat into the outlet. The fridge reacts the same way, whether it is plugged into the wall directly or through the thermostat. I have called refrigerator repair companies and they either don't return my calls or won't come out and look at it. It's frustrating because I believe the old fridge is still good. Thanks again! It does sound like you're facing the same battle with local HVAC people as many here have faced.
The delayed turn-off even when the thermostat is not in the circuit does sound like the motor overload is tripping. Also based on the power consumption you're measuring, that sounds like the motor is not really overloading. Three hundred watts is high for constant running, but during pulling-down of the cabinet with everything warm - it's not really too far out of line.
I think you need to replace the start and overload relay and see if that helps it.
Alternatively, it may be wise to try and get it to someone with a lot of experience who could do that repair without risk of any additional damage.
Sincerely, David
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Post by jswynn on Jul 8, 2019 14:55:23 GMT
Thanks for the info! Where would I find a start and overload relay that would work for this type of refrigerator?
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Post by elec573 on Jul 8, 2019 15:18:58 GMT
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Post by jswynn on Jul 8, 2019 19:05:13 GMT
I will order one and see about having a professional install it. It doesn't seem like it would be extremely difficult, but better safe than sorry!
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Post by elec573 on Jul 8, 2019 20:40:16 GMT
If you look on YouTube there’s some examples on there . But on much newer fridges .
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