Just to clarify, which sensor did you replace as there is temp sensor in the refrigerator compartment and also one in the freezer compartment?
When the evaporator fan is not operating (is the compressor also stopped when the fan is stopped?) it may be because one of the compartments is indicating incorrectly that it is cool enough.
The ice build up should not happen because the defrost heaters should melt the ice during the auto defrost cycle.
According to the [https://www.searspartsdirect.com/model/49headseep-001482/samsung-rf28k9380sr-aa-00-bottom-mount-refrigerator-parts|parts list - part 8-3 & 8-6 freezer section] there are two heaters associated with the evaporator unit. Maybe one on its own isn’t good enough (as most fridges only have the one) I don’t know, but perhaps you should disconnect the power from the refrigerator and then disconnect and test them with an Ohmmeter to make sure that they’re both OK. Usually defrost heaters are between 10-70 Ohms but I’m not sure about Samsung. Also be '''''safety aware''''' if you go to test the heaters’ power supply (assuming that the heaters test OK with an Ohmmeter) as heaters normally operate at AC mains voltage supply
Not sure with Samsung but with other makes they usually go into the auto defrost cycle once every 8 -11 hours (depends on maker) and the auto defrost cycle lasts about 20-25 minutes. During this time the compressor and evaporator fan are both turned off and the defrost heater is turned on to melt the accumulated ice on the evap unit. The temp in the freezer is allowed to rise to ~32F to aid the melting process. When it reachers ~32F the defrost thermostat operates to signal the control board to end the cycle, turn off the heater and start the compressor and evaporator fan again to drive the temps back down to the set temps. This process is repeated 8-11 hours later etc.
If the auto defrost cycle doesn’t kick in then it may be a control board problem.
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As a precaution never use a hair dryer on hot to melt any ice on the evaporator unit as this can damage it as it is only thin aluminium. Turn off the fridge and leave the door open and allow it to melt naturally. You can help it along a bit by the using a hair dryer on the coolest setting for brief periods at a time. Have plenty of towels handy as it may flood under the fridge if the evaporator pan overflows when the ice is melting. ;-)
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As a precaution never use a hair dryer on hot to melt any ice on the evaporator unit as this can damage it as it is only thin aluminium working at very cold (0 deg. F) temp. Turn off the fridge and leave the door open and allow it to melt naturally. You can help it along a bit by the using a hair dryer on the coolest setting for brief periods at a time. Have plenty of towels handy as it may flood under the fridge if the evaporator pan overflows when the ice is melting. ;-)
Just to clarify, which sensor did you replace as there is temp sensor in the refrigerator compartment and also one in the freezer compartment?
When the evaporator fan is not operating (is the compressor also stopped when the fan is stopped?) it may be because one of the compartments is indicating incorrectly that it is cool enough.
The ice build up should not happen because the defrost heaters should melt the ice during the auto defrost cycle.
According to the [https://www.searspartsdirect.com/model/49headseep-001482/samsung-rf28k9380sr-aa-00-bottom-mount-refrigerator-parts|parts list - part 8-3 & 8-6 freezer section] there are two heaters associated with the evaporator unit. Maybe one on its own isn’t good enough (as most fridges only have the one) I don’t know, but perhaps you should disconnect the power from the refrigerator and then disconnect and test them with an Ohmmeter to make sure that they’re both OK. Usually defrost heaters are between 10-70 Ohms but I’m not sure about Samsung. Also be '''''safety aware''''' if you go to test the heaters’ power supply (assuming that the heaters test OK with an Ohmmeter) as heaters normally operate at AC mains voltage supply
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Not sure with Samsung but with other makes they usually go into the auto defrost cycle once every 8 -11 hours (depends on maker) and the auto defrost cycle lasts about 20-25 minutes. During this time the compressor and evaporator fan are both turned off and the defrost heater is turned onto melt the accumulated ice on the evap unit. The temp in the freezer is allowed to rise to ~32F to aid the melting process. When it reachers ~32F the defrost thermostat operates to signal the control board to end the cycle, turn off the heater and start the compressor and evaporator fan again to drive the temps back down to the set temps. This process is repeated 8-11 hours later etc.
+
Not sure with Samsung but with other makes they usually go into the auto defrost cycle once every 8 -11 hours (depends on maker) and the auto defrost cycle lasts about 20-25 minutes. During this time the compressor and evaporator fan are both turned off and the defrost heater is turned on to melt the accumulated ice on the evap unit. The temp in the freezer is allowed to rise to ~32F to aid the melting process. When it reachers ~32F the defrost thermostat operates to signal the control board to end the cycle, turn off the heater and start the compressor and evaporator fan again to drive the temps back down to the set temps. This process is repeated 8-11 hours later etc.
If the auto defrost cycle doesn’t kick in then it may be a control board problem.
As a precaution never use a hair dryer on hot to melt any ice on the evaporator unit as this can damage it as it is only thin aluminium. Turn off the fridge and leave the door open and allow it to melt naturally. You can help it along a bit by the using a hair dryer on the coolest setting for brief periods at a time. Have plenty of towels handy as it may flood under the fridge if the evaporator pan overflows when the ice is melting. ;-)
Just to clarify, which sensor did you replace as there is temp sensor in the refrigerator compartment and also one in the freezer compartment?
When the evaporator fan is not operating (is the compressor also stopped when the fan is stopped?) it may be because one of the compartments is indicating incorrectly that it is cool enough.
The ice build up should not happen because the defrost heaters should melt the ice during the auto defrost cycle.
According to the [https://www.searspartsdirect.com/model/49headseep-001482/samsung-rf28k9380sr-aa-00-bottom-mount-refrigerator-parts|parts list - part 8-3 & 8-6 freezer section] there are two heaters associated with the evaporator unit. Maybe one on its own isn’t good enough (as most fridges only have the one) I don’t know, but perhaps you should disconnect the power from the refrigerator and then disconnect and test them with an Ohmmeter to make sure that they’re both OK. Usually defrost heaters are between 10-70 Ohms but I’m not sure about Samsung. Also be '''''safety aware''''' if you go to test the heaters’ power supply (assuming that the heaters test OK with an Ohmmeter) as heaters normally operate at AC mains voltage supply
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Not sure with Samsung but with other makes they usually go into the auto defrost cycle once every 8 -11 hours and the auto defrost cycle lasts about 20-25 minutes. During this time the compressor and evaporator fan are both turned off and the defrost heater is turned onto melt the accumulated ice on the evap unit. The temp in the freezer is allowed to rise to ~32F to aid the melting process. When it reachers ~32F the defrost thermostat operates to signal the control board to end the cycle, turn off the heater and start the compressor and evaporator fan again to drive the temps back down to the set temps. This process is repeated 8-11 hours later etc.
+
Not sure with Samsung but with other makes they usually go into the auto defrost cycle once every 8 -11 hours (depends on maker) and the auto defrost cycle lasts about 20-25 minutes. During this time the compressor and evaporator fan are both turned off and the defrost heater is turned onto melt the accumulated ice on the evap unit. The temp in the freezer is allowed to rise to ~32F to aid the melting process. When it reachers ~32F the defrost thermostat operates to signal the control board to end the cycle, turn off the heater and start the compressor and evaporator fan again to drive the temps back down to the set temps. This process is repeated 8-11 hours later etc.
If the auto defrost cycle doesn’t kick in then it may be a control board problem.
As a precaution never use a hair dryer on hot to melt any ice on the evaporator unit as this can damage it as it is only thin aluminium. Turn off the fridge and leave the door open and allow it to melt naturally. You can help it along a bit by the using a hair dryer on the coolest setting for brief periods at a time. Have plenty of towels handy as it may flood under the fridge if the evaporator pan overflows when the ice is melting. ;-)
Just to clarify, which sensor did you replace as there is temp sensor in the refrigerator compartment and also one in the freezer compartment?
When the evaporator fan is not operating (is the compressor also stopped when the fan is stopped?) it may be because one of the compartments is indicating incorrectly that it is cool enough.
The ice build up should not happen because the defrost heaters should melt the ice during the auto defrost cycle.
-
According to the [https://www.searspartsdirect.com/model/49headseep-001482/samsung-rf28k9380sr-aa-00-bottom-mount-refrigerator-parts|parts list - part 8-3 & 8-6 freezer section] there are two heaters associated with the evaporator unit. Maybe one on its own isn’t good enough (as most fridges only have the one) I don’t know, but perhaps you should disconnect the power from the refrigerator and then disconnect and test them with an Ohmmeter to make sure that they’re both OK. Usually defrost heaters are between 10-50 Ohms but I’m not sure about Samsung. Also be '''''safety aware''''' if you go to test the heaters’ power supply (assuming that the heaters test OK with an Ohmmeter) as heaters normally operate at AC mains voltage supply
+
According to the [https://www.searspartsdirect.com/model/49headseep-001482/samsung-rf28k9380sr-aa-00-bottom-mount-refrigerator-parts|parts list - part 8-3 & 8-6 freezer section] there are two heaters associated with the evaporator unit. Maybe one on its own isn’t good enough (as most fridges only have the one) I don’t know, but perhaps you should disconnect the power from the refrigerator and then disconnect and test them with an Ohmmeter to make sure that they’re both OK. Usually defrost heaters are between 10-70 Ohms but I’m not sure about Samsung. Also be '''''safety aware''''' if you go to test the heaters’ power supply (assuming that the heaters test OK with an Ohmmeter) as heaters normally operate at AC mains voltage supply
Not sure with Samsung but with other makes they usually go into the auto defrost cycle once every 8 -11 hours and the auto defrost cycle lasts about 20-25 minutes. During this time the compressor and evaporator fan are both turned off and the defrost heater is turned onto melt the accumulated ice on the evap unit. The temp in the freezer is allowed to rise to ~32F to aid the melting process. When it reachers ~32F the defrost thermostat operates to signal the control board to end the cycle, turn off the heater and start the compressor and evaporator fan again to drive the temps back down to the set temps. This process is repeated 8-11 hours later etc.
If the auto defrost cycle doesn’t kick in then it may be a control board problem.
As a precaution never use a hair dryer on hot to melt any ice on the evaporator unit as this can damage it as it is only thin aluminium. Turn off the fridge and leave the door open and allow it to melt naturally. You can help it along a bit by the using a hair dryer on the coolest setting for brief periods at a time. Have plenty of towels handy as it may flood under the fridge if the evaporator pan overflows when the ice is melting. ;-)
Just to clarify, which sensor did you replace as there is temp sensor in the refrigerator compartment and also one in the freezer compartment?
When the evaporator fan is not operating (is the compressor also stopped when the fan is stopped?) it may be because one of the compartments is indicating incorrectly that it is cool enough.
The ice build up should not happen because the defrost heaters should melt the ice during the auto defrost cycle.
-
According to the [https://www.searspartsdirect.com/model/49headseep-001482/samsung-rf28k9380sr-aa-00-bottom-mount-refrigerator-parts|parts list - part 8-3 & 8-6 freezer section] there are two heaters associated with the evaporator unit. Maybe one on its own isn’t good enough (as most fridges only have the one) I don’t know, but perhaps you should disconnect the power from the refrigerator and then disconnect and test them with an Ohmmeter to make sure that they’re both OK. Usually defrost heaters are between 10-50 Ohms but I’m not sure about Samsung. Also be '''''safety aware''''' if you go to test the heaters’ power supply (assuming that the heaters test OK with an Ohmmeter) as heaters normally operate at main voltage supply
+
According to the [https://www.searspartsdirect.com/model/49headseep-001482/samsung-rf28k9380sr-aa-00-bottom-mount-refrigerator-parts|parts list - part 8-3 & 8-6 freezer section] there are two heaters associated with the evaporator unit. Maybe one on its own isn’t good enough (as most fridges only have the one) I don’t know, but perhaps you should disconnect the power from the refrigerator and then disconnect and test them with an Ohmmeter to make sure that they’re both OK. Usually defrost heaters are between 10-50 Ohms but I’m not sure about Samsung. Also be '''''safety aware''''' if you go to test the heaters’ power supply (assuming that the heaters test OK with an Ohmmeter) as heaters normally operate at AC mains voltage supply
Not sure with Samsung but with other makes they usually go into the auto defrost cycle once every 8 -11 hours and the auto defrost cycle lasts about 20-25 minutes. During this time the compressor and evaporator fan are both turned off and the defrost heater is turned onto melt the accumulated ice on the evap unit. The temp in the freezer is allowed to rise to ~32F to aid the melting process. When it reachers ~32F the defrost thermostat operates to signal the control board to end the cycle, turn off the heater and start the compressor and evaporator fan again to drive the temps back down to the set temps. This process is repeated 8-11 hours later etc.
If the auto defrost cycle doesn’t kick in then it may be a control board problem.
As a precaution never use a hair dryer on hot to melt any ice on the evaporator unit as this can damage it as it is only thin aluminium. Turn off the fridge and leave the door open and allow it to melt naturally. You can help it along a bit by the using a hair dryer on the coolest setting for brief periods at a time. Have plenty of towels handy as it may flood under the fridge if the evaporator pan overflows when the ice is melting. ;-)
Hi @bkny
Just to clarify, which sensor did you replace as there is temp sensor in the refrigerator compartment and also one in the freezer compartment?
When the evaporator fan is not operating (is the compressor also stopped when the fan is stopped?) it may be because one of the compartments is indicating incorrectly that it is cool enough.
The ice build up should not happen because the defrost heaters should melt the ice during the auto defrost cycle.
According to the [https://www.searspartsdirect.com/model/49headseep-001482/samsung-rf28k9380sr-aa-00-bottom-mount-refrigerator-parts|parts list - part 8-3 & 8-6 freezer section] there are two heaters associated with the evaporator unit. Maybe one on its own isn’t good enough (as most fridges only have the one) I don’t know, but perhaps you should disconnect the power from the refrigerator and then disconnect and test them with an Ohmmeter to make sure that they’re both OK. Usually defrost heaters are between 10-50 Ohms but I’m not sure about Samsung. Also be '''''safety aware''''' if you go to test the heaters’ power supply (assuming that the heaters test OK with an Ohmmeter) as heaters normally operate at main voltage supply
Not sure with Samsung but with other makes they usually go into the auto defrost cycle once every 8 -11 hours and the auto defrost cycle lasts about 20-25 minutes. During this time the compressor and evaporator fan are both turned off and the defrost heater is turned onto melt the accumulated ice on the evap unit. The temp in the freezer is allowed to rise to ~32F to aid the melting process. When it reachers ~32F the defrost thermostat operates to signal the control board to end the cycle, turn off the heater and start the compressor and evaporator fan again to drive the temps back down to the set temps. This process is repeated 8-11 hours later etc.
If the auto defrost cycle doesn’t kick in then it may be a control board problem.
As a precaution never use a hair dryer on hot to melt any ice on the evaporator unit as this can damage it as it is only thin aluminium. Turn off the fridge and leave the door open and allow it to melt naturally. You can help it along a bit by the using a hair dryer on the coolest setting for brief periods at a time. Have plenty of towels handy as it may flood under the fridge if the evaporator pan overflows when the ice is melting. ;-)