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Customer Questions and Answers for Pba M by Samsung

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    • Part Number: AP4137444
    • MFG Part Number: DA41-00295C
    • Made by: Samsung
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For Samsung Pba M (Part Number: AP4137444)

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I purchased the heater/evaporator assy, found out my old heater has the correct resistance. I installed the new thermistor and thermal fuse and the coils are still icing up. I am now looking at the ciruit board. Is there any way to test the connections going to these 3 parts to see if electricity is getting there? Is the circuit board my next item to replace? Thanks.

Herbeez for Model Number rs253basb

ANSWER Hi Herbeez.9-11) Forced Operation Function (Pull-down / Refrigerator Defrost / Refrigerator . Freezer-Defrost / Cancellation)  This function enables a pull-down mode, a defrost mode for the refrigerator only, a defrost mode for the freezer and the refrigerator at the same time, and a cancellation of this function.  Press Power Freeze and Fridge Temp. buttons for 8 seconds simultameously to get in the ready mode for a forced operation.  The display panel will return to normal after 20 seconds in the ready mode.  At the ready mode, press any button(except Ice Type and Child Lock) once to start a pull-down operation, twice for a defrost cycle for the refrigerator, three times for a defrost cycle for the freezer and the refrigerator, and finally four times for cancellation of this function.  Another way to cancel this function is to simply plug out and in the power cord. 1) Press the Power freeze and the Fridge buttons for 8 seconds at the same time.1) Pull-down Operation 1-1) At the ready mode, press any button once then the buzzer will beep (ON for 1/2 second and OFF for 1/2 second) until this mode is cancelled. 1-2) At this pull-down mode, the compressor will start immediately (No 5 minute delay) and if the system is in the defrost cycle, it will be cancelled right away. note) If this pull-down mode begins right after the compressor was off, the compressor may not start to run due to an overload condition. 1-3) At this mode, the compressor and freezer fan will operate continuously for 24 hours and the refrigerator fan will be on and off according to the set temperature(34?) 1-4) After 24 hour operation, the system will be cycled at -14? for the freezer and 34? for the refrigerator. 1-5) In order to cancel this mode at any time, select the next mode on the ready mode or power off the system. 2) Defrost operation 2-1) At the pull-down mode, press any button again on the ready mode to begin the defrost cycle for the refrigerator. 2-2) The beep sound continues for 3 second at the beginning, then ON for 3/4 seconds and OFF for 1/4 second until this mode cease. 2-3) After this operation, the system will come back to normal operation. 2-4) At this mode, press any button again on the ready mode to operate the defrost cycles for both compartments. 2-5) The beep sound continues for 3 seconds at that time, then ON for 1/4 second and OFF for 3/4 seconds until the defrost operation cease. 3) Cancellation 3-1) At the R,F-Defrost mode, press ant button again on the ready mode to return to a normal operation. 3-2) Simply unplug the power cord, then plug it again to return to a normal operation.1) A thermistor with a negative temperature coefficient (NTC) is used for a temperature sensor. 2) Resistors, R 301 ?? R304 and capacitors, C 301 ?? C 305 are used for a noise protection purpose. 3) For the F-sensor, the input voltage into the micro processor (MICOM), VF is calculated by (Rth x Vcc)/(R301+ Rth), where Rth is a corresponding resistance to the thermistor’s output (See Ref. 6 in Appendix). 4) The F-Def sensor is connected with a bimetal and a temperature sensor is in parallel. In a normal operation of the system, the bimetal is on and 0V is input into the micro-processor. During a defrost cycle, the bimetal will be off from 54?, and a divided voltage with R304 enter to the micro-processor to keep sensing the set temperature.Hope this helps. Thank you. 

Answered by AppliancePartsPros.com   |   Wednesday, July 06, 2011

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