after 2-3 days the ice on the coils of freezer is not melting.

Hi,

I can’t find any information online about parts for your refrigerator but check if the defrost heater is OK.

The defrost heater is usually very close to the evaporator unit which is inside the freezer compartment behind a panel. It is powered on every defrost cycle to help melt the ice buildup on the evaporator unit so the water can drain away to the evaporator pan which is located outside the compartments under the refrigerator.

Disconnect the power from the fridge and then disconnect the wire harness connector to the defrost heater and use an Ohmmeter to measure its’ resistance. Usually most defrost heaters test somewhere between 20-50 Ohms.

Here’s a link just to show you what the heater might look like. As I said, I couldn’t find any parts information about your model but hopefully the images in the link will help you to find it so that it can be tested.

If the defrost heater is OK, does the refrigerator go into the auto defrost cycle once every 6-11 hours?

Not sure how often it occurs with your model, but the compressor is stopped for about 20 minutes to allow the ice to be melted and then restarted again to cool the fridge back down again. During the defrost cycle the freezer temperature will go up to 0 deg C (32F) to help melt the ice. This is normal.