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How Defrost T'stat(SWC SW-105T 250v 10A 77C)works

How does Daewoo FR-3801 defrost T'stat(SWC SW-105T 250v 10A 77C) works.

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Posted on Jan 02, 2017

  • 237 Answers

SOURCE: problem in Samsung rs 2555sl Side by Side Refrigerator Troubleshooting Foru

Look at the link attached, the defrost t-stat is #38 (thermo bimetal). Clips to the coil, looks like a round device with wires on it. Defrost t-stat is normally closed to allow power to the heat element and opens when hot enough to stop the defrost cycle. Heat element #43 should not test "open" with a multi meter, there should be some Ohm value there to show it's good. The defrost timer could be a clock type or circuit board type, page through the links diagrams and you should be able to see where it is physically located in your particular unit.

Posted on Nov 24, 2006

the dr
  • 447 Answers


There is no forced defrost entry for your refrig. Yours has a ADC board in the upper right corner of the control area in the refrig section. The only way to initate defrost is jump the terminals on the board. Look at the wiring diagram closely before making the jump. The board energizes the heater thru the neutral side so make sure you dont jump line to this. I believe you jump L2 to Def

Posted on Dec 02, 2007

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SOURCE: admiral ref with freezer on top I need to find out how to get to defrost heater so I can test it

Defrosr heater is located behind the back wall of the freezer section. You will have to remove the shelves and ice maker if you have one installed. A number of screws secures the back wall in place. Remove the screws and the back wall should pivot out from the top.
The defrost thermostat is located behind this wall and is secured by a clip to the coil. To test this defrost switch you must lower its temperature below 16°F.

Posted on May 09, 2008

  • 400 Answers

SOURCE: JennAir JFC2087HRS Freezer works but the top doesn't

Side by side have two compressors which are sometimes seperately controlled. The defrost timer is normally a part of a printed circuit board and not a serviceable item. The defrost bi-metal thermostat would be found on the freezer side behind a cover panel and is attached directly in contact with the evaporator (the thing with fins like a radiator) tubing. The function is to prevent the freezer going into defrost mode until the coil tubing is below -5 degrees celcius.

Posted on Mar 04, 2009

  • 24 Answers

SOURCE: Ihave a defrost problem with a GSS22 , heater is ok t stat is ok

You could turn off the freezer (set the knob to zero/off) and open the freezer door. After about a minute or two, the fan inside the freezer compartment will turn on to help move air over the coils. Depending on the temp inside your house, it may take a few hours. At least that's how my GE side-by-side works.

Make sure you empty the ice bucket (if so equipped) or it will just melt and drip everywhere.

If it ices over on a regular basis, there may be other problems - the defrost element, defrost timer, defrost temp sensor; or the various other temp sensors in the fresh food compartment and freezer compartment.

Posted on Jul 28, 2009

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My Daewoo FR-291 fridge with freezer at topleaks 1/2 cup or so a day & onto floor sometimes. Hired one for $150 as told to turn ours off for 2 days. Leaked nxt day again. Thxs NZ

a thorough inspection of the tubes, filter, solenoid, ice maker and water dispenser should reveal the leaking component
also a thorough inspection of the defrost drain, drain tube, and dryer pan

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Dear Sirs, My FR-291 has trouble: freezer chamber does not work well on the upper shelve. What to do?

Your model doesn't have a defrost function, I'd check to see if ice is building up on your walls of the freezer chamber, if so, carefully scrape away the ice. Another possibility is that your seals on the door are torn or are wearing out, a simple replacement can do wonders there. Lastly, it's pretty rare, unless you abuse your freezer, but a hole in the chamber caused by wear or from an icepick can basically kill the freezer. If that happens, well, your out of luck, sorry.

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this is maybe overheating problem, check that the fan on it is working
Fosg2000, please Rate me

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Whirlpool S21S4D Ice maker stopped working Now fridge stopped working Frezer OK Defrosted ice on condenser and fridge working for time being! Do you think its the mother board?

You have a defrost problem going on. Either the defrost timer, the defrost t-stat or the defrost heater. Remove the back freezer wall and you will see the evaporator coils. This is where the heater and t-stat are located. One of these is more than likely the problem.

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1 Answer

Amana br18v1w bottom freezer iced up will not defrost

rotate defrost timer till compressor off
does it defrost if no then
jump out defrost t-stat (round disc)
if starts to defrost Replace defrost t-stat
if yes replace defrost timer if not turning

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that know your turning is the defraost timmer
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