Daewoo fridge conclusion

Thanks everybody for your input on the fridge. It appears to be the thermostat. I tried unplugging it overnight and then turning on again. Same symptoms. The thermostat switching mechanism is in a plastic box screwed to the side of the fridge compartment. So it is subject to any humidity changes. The sensing bulb is attached to the cooling plate underside. Since the behavoir didn't change after a 24 hour plus off period I decided to look inside the box. The box is held to the inside with one screw and a tab. Just unscrewing the the retaining screw and swinging the box away from the side started the fridge compressor. Now it is cooling properly. So either the capillary tube is faulty or the switch contacts are dirty. I think. Anyway, I will be taking apart the switch mechanism to see if I can clean the switch contacts. If that doesn't work I do have a little temp controller that I can set to an exact temp that I can substitute for the thermostat assembly. Thanks again for all the reaponses. Cheers, Eric

Reply to
etpm
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snipped-for-privacy@whidbey.com prodded the keyboard with:

Hi Eric, I don't know what fridge stats cost over there but they are only about

just in case your original one doesn't fit.

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Best Regards: 
                      Baron.
Reply to
Baron

Make sure you don't set the temperature range too tight. You don't want the compressor to turn on and off too frequently.

Reply to
HW

Since I already have a nice digital controller I won't be needing to buy one. But thanks anyway. Eric

Reply to
etpm

So what should the hysteresis be? and suggestions? Thanks, Eric

Reply to
etpm

Says for the fridge it should be between 35 and 40F. So, I'd say a

5F hysteresis. Also suggested 0F for the freezer, but didn't give a range. So, I'd say +/- 2.5F
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"I am a river to my people." 
Jeff-1.0 
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Reply to
Fox's Mercantile

Thanks for that Jeff. Since this is a mini fridge there is only one compartment, so I can't set more than one temp. Makes life easy. Eric

Reply to
etpm

If you can find the specs for the original thermostat, that would be a good starting point.

I have retrofitted a digital thermostat to my kitchen fridge. After a lot of googling and experimentation, I ended up with the "on" temperature at +4 C, and the "off" temperature at -17 C or so. The sensor is attached to the evaporator in the back of the fridge, so the air will not reach -17 C, of course.

Your fridge will be different. You will have to experiment. The lower temperature needs to be set quite precisely, since the temperature drops quite quickly at first, but very slowly towards the end of the cycle.

Also, remember that the cycle time will be faster with an empty fridge, compared to when it is fully loaded.

Reply to
HW

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