Question about Samsung Refrigerators
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Posted on Jan 02, 2017
SOURCE: samsung rs20 fridge free
Frost-Free refrigerators have a defrost cycle that they must go through after every several hours of accumulated run time. This is normally done by mechanical means which include a: 1.Defrost timer
Timers are usually 1st to fail. To test the timer you can manually rotate the timer knob to a defrost cycle but then it has to be rotated out manually also. To test the timer, rotate the knob slowly until you hear a distinct click or snap, then stop turning.If the refrigerator is running,(which it should be because it is attempting to cool), it should immediately shut off.
Within a few minutes you should be able be able to hear sizzling noises and/or popping or cracking sounds. If you observe any of these noises, then you have a faulty defrost timer. Allow the heater to remain on for approximately 45 min. to 1 hour, (you may hear water running into you defrost pan under the unit, behind the toe-plate grille), then rotate the knob until the refrigerator comes back on. The unit should then work normally for another few days before you have to repeat the cycle until you replace the timer. If your test is inconclusive, then you will need a technician to do the rest.
Manufacturers locate timers in varying positions depending on design. Usual locations are in:
1. The fresh food compartment, mounted in with or around the cold control,(identifiable by a small knurled knob protruding out of a protective covering). It is usually a small, black, odd-shaped component with the knob on it.
2. Behind the toe plate grille mounted to either side of the frame.
3. On the outside, back wall, inside a rectangular shaped box with the knob protruding through the hole.
If you are unable to locate the timer, then a technician should be contacted for service.
Hope this helps...Let me know if I can be of any more assistance.
Posted on May 25, 2008
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If there is no cooling at all on the fridge section but the freezer works then it is confirmed that the compressor and gas pressure is OK. Now shut off the fridge and leave it powered off while you clean and check the evaporator for frost. If frost is seen it is a good indication as the compressor is working with sufficient gas within.
Now after about 6 hours plug in the fridge to start. Observe cooling to happen in about one hour and ice to from under three hours.
Earlier make sure that the thermostat was set to normal mode for freezer and fridge.
However if ice forms in the freezer then observe the fridge for about 24 hours for cooling to continue and the fridge to cut off . If not the auto defrost timer, or the thermostat must be checked. Frost formation without defrosting could block the air flow and so shut the air passage to the fridge. Also the blower fan must work and if this is not working then the fan can be faulty. Also a fault on the control unit is a suspect to non functioning of any one of these components.
If defrost timer works but frost keeps forming check while the compressor shuts if the heaters are working, check continuity of the heaters.
So try this test using a multi-meter on the defrost timer and the thermostat and make your observations so that we come to the solution.
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