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Bimetal defrost switch

Where can i find this samsung part # PW5N60/40 I beleive it's a defrost thermostat switch

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Auto defrosting is not working,timer ok,thermostat ok,evoporater fan ok. only bimetallic defrost switch not yet checked

Posted on Apr 21, 2009


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How to turn my refrigerator off to defrost

Your model has a control Board that most likely automatically controls periodic defrosting. If it's not defrosting, then that Board, the heater, or defrost thermostat is bad.

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Can i bypass the defrost thermostat until i can get a new one

take a hair dryer and defrost the coils totally this should keep you for a week or so.
turn the ref off and do it,do not hot wire it,you will melt the liner,dangerous.

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The fridge section does not appear to be keeping goods cool although temperature on front of fridge says 1 degree

Freezer fan not working or blocked by over ice formation behind the freezer. Switch of a/c for defrost. After some times, plug on . It's due to malfunction of defrost cycling. Keep thermostat at 5 degree and check thermostat, timer and defrost heater are working properly. thanks.

Jan 31, 2011 | Samsung RS2534 Side by Side Refrigerator

1 Answer

My samsung ref rt30mass ref compartment is not working properly even with adjustments made from its temperature however the freezer is working properly

The defrost thermostat is not working and the evaporator compartment is blocked with ice. That will stop cold air from entering into the fresh food compartment.
Move your food to another refrigerator, then unplug and open the Samsung refrigerator for 24 hours and allow the ice to melt.
Then remove the freezer panel inside and locate and replace the little plastic tube like part that is zip tied to the expansion tubing. It should have 2 brown wires coming out of the plastic sealed tube/ thermostat part. Write down your model number and go to Samsung's website or searspartsdirect and buy a new thermostat.
I believe the operating range for said thermostat is 20 C to -5 C. you'll most probably have to cut the wires and splice in the new thermostat. You can also use a generic thermostat with the same or nearly the same ratings of 20/-5 C temp.
All the thermostatic switch does is control the defrost heating element that melts the ice off the evaporator every 10 to 12 hour cycle via the defrost timers switch located at the bottom rear of the refrigerator. You can turn the clock counter clock wise until the first loud click to force the machine into defrost as well. Although if the defrost heating element, thermistor, THERMOSTAT, or defrost timer switch has malfunctioned there will not be a defrost cycle and ice will form inside the ducting and evaporator compartment and block the cold air circulation and the fresh food compartment will not cool and the freezer section will barely freeze water.

May 19, 2010 | Refrigerators

1 Answer

My 3 year old bottom frezer samsung fridge stoped defrosting automatically.Ice builds up in vents till stops cooling.After unpluging and defrosting for 24 hrs manually,works good for 2-3mnths.Cant find...

3 things defrost heater, defrost timer or defrost limit thermostat.
You can pull the cover inside the freezer exposing the evaporator coils,
look for the defrost heater at the bottom of the coils. Test for continuity.
Find the defrost limit thermostat, a 2" metal disc attached to the evap coil usually on the side towards the top has two wires going in and will have continuity only when it is cold. If those are good probably the defrost timer.

Nov 04, 2009 | Samsung Refrigerators

1 Answer

How do I defrost a Samsung Refrigerator # RS2555SW?

Take the back cover inside the freezer off and you can see the iced up coils. Use a hairdryer to melt the ice. Don't chip it off, you might puncture the coil.
If the evaporator coils behind the back panel of the freezer are icing up because of auto defrost failure
check defrost timer, defrost heater, defrost thermostat. In most newer models the timer has been replaced by an electronic control board. If the heater and thermostat are ok it’ll be the control.

Jul 08, 2009 | Samsung Refrigerators

1 Answer

Keeps switching off

The defroster is supposed to switch off the refrigerator three times a day. Then after defrosting, the thermostat switches it back on again. I would guess the thermostat is bad.

Nov 25, 2008 | Samsung Refrigerators

2 Answers

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I have a Samsung Side by Side Refridgerator RS21 FCNS which has stopped cooling the fridge - the temp sticks on about 14deg. Yellow pages engineer came out and quoted a ghastly job and £350.

Called Samsung on 0845 726 7864 and they told me that the defrost heater is a design fault and that warranty on this component has been extended to 5 years. Someone coming tomorrow to fix it (for free).

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3 Answers

Samsung side-by-side refrig is not staying cold

Look for signs of frost build up on back freezer panel. If there is build up then it has a defrost problem. I haven't had much experience with samsung but I beleive it has a fuse in the defrost circuit on the evaporator and that may be the defrost problem.

Sep 28, 2007 | Refrigerators

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