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Model PTS25LBMARWW GE refrigerator not defrosting

I have changed the mother board # ps1019640 and the unit will not automatically defrost.

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5 Suggested Answers

  • 184 Answers

SOURCE: GE side by side refrigerator defrost problem

CHECK THE DEFROST HEATER FOR CONTINUITY. IF IT IS O.K. CHECK THE ELECTRONIC CONTROL FOR A FAULTY SOLDER CONNECTION ON THE DEFROST RELAY. THE ELECTRONIC BOARD SHOULD BE LOCATED ON THE BACK WALL OF THE REFIGERATOR BEHIND AN ACCESS PANEL.

Posted on Apr 10, 2008

caroldon
  • 17129 Answers

SOURCE: GE model #GSS201EMBWW is not defrosting, checked

The drive output - solid state relay maybe a thyristor - is short and is continuously heating the element thus burning it off.
The element is supposed to heat only for a specific period of time. The motherboarrd must be taken out to confirm the shorting of the thyristor/SCR.
replace with the same type and it will only swittch on when the microprocessor timer signals a bias to turn it on.

Posted on Aug 30, 2010

aasc
  • 1606 Answers

SOURCE: GE model #GSS201EMBWW is not defrosting, checked

This is how the defrost works . I have NEVER found a defrost problem associated with a bad main control board since these computerized GE's came out in 2000 . Lots of thermistor problems , lying to the board , causing different problems .
Your GSS model refrig does not have a defrost timer . It works off of the main control board . Pull the refrig out and remove the 8 " x 10 " panel . Behind this panel , is the main control board . Unplug the refrig . Remove the BLUE plug from the board , with 3 larger wires going to it . Looking at the blue plug , the sequence will be wire1,wire2,space,wire3 . Get a short piece of insulated wire , and strip about 1/4 inch from each end . Insert 1 end into wire2 , and the other into wire3 . Plug the refrig back in . After about 3 min , look in the freezer , at the bottom , behind the crisper , look for a red glow . If no red glow , unplug the refrig , and reassemble the plug and cover . This no glow , indicates a shorted defrost heater WR51X10101 . It is also advisable to replace the defrost thermostat ( pt. number WR50X10068 ) when replacing the heater . To access these parts , you will have to remove the inside rear wall of the freezer . The heater , is at the bottom of the coils , held on with 2 screws , and the thermostat , is the 1 " cylinder , with a blue and pink wire going to it , clipped on the top left of the coils .
If you do get a red glow , then the # 4 thermistor is bad . This tells the main control board , the temp of the coils , if they need defrosted , when they are thru defrosting . This thermistor is the 1 " long , torpedo looking piece , clipped on the top left of the coils , with 2 white wires going to it . Part number WR55X10025 . It would be advisable to also replace the # 5 thermistor , located at the bottom of the freezer , slightly in front of the drain , also with 2 white wires going to it , slid into a housing . This thermistor , is the freezer thermistor , which tells the control board , the freezer temp and when to cycle off due to selected temperature .

Posted on Aug 31, 2010

espressonist
  • 1711 Answers

SOURCE: Model PTS25LBMARWW GE refrigerator not

Two posibe reasons.
First the defrost heater is damage and need to be replaced. This is the most frequent problem and heater cost only about $32.
http://www.appliancepartspros.com/partsearch/model.aspx?model_id=219674&diagram_id=21697826#d21697826

Second most serious but rear is the electronic control board is faulty and does not give the instruction or power to heater to heat up and melt frost. Need to be replace this is ruther expensive part about $132.
see link
http://www.appliancepartspros.com/partsearch/model.aspx?model_id=219674&diagram_id=21697831#d21697831

Posted on Sep 29, 2010

aasc
  • 1606 Answers

SOURCE: Ge side by side frig won't defrost gss25sgmb new heater motherboard thermostats

Replace the thermistors #4 and #5 . 4 is the white bullet looking piece on top of the coils inside the freezer , with 2 white wires . 5 is at the bottom of the freezer , on the left side . These thermistors tell the main board , the temp and the board goes into defrost according to temp the thermistors "tell it " .

Posted on Aug 16, 2012

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2 Answers

Where is the defrost timer located on model GE GSS22JETG WW? This is a side by side


USUALLY LOCATED IN THE FRIDGE AT MIDDLE TOP BUT SOMETIMES CAN BE FOUND IN THE FREEZER ALONG THE WALL

Mar 08, 2015 | GE Refrigerators

Tip

GE refrigerator non defrost issue with Mother Board


This procedure will define the issue with a non defrost issue in all GE refrigerators controlled by a Mother Board.

Description of Non Defrost.

Are you noticing a drop in temperature in the refrigerator and or a frosting of the lower rear back panel of the freezer. This would indicate a non defrost issue. There are four reasons for this to ocurr.The four reasons will be adressed in the instrutional video I have posted below.

The tech has set up in the back ground a G.E. freezer section to demonstrate an actual scenairo.

Click on the link http://www.youtube.com/watch?v=BrSQz-5F1hs

You will need the print to the Mother Board.....The Mother board controls all aspects of the unit. Because you have a defrost issue do not think that it is because of the mother board. Most of the time it is just the defrost heater that is bad. If the defrost heater is bad remember to always change out the defrost thermostat also. Note the print....you can check all aspects of the unit from here....

click on the link http://fixitnow.com/wp/2006/06/29/ge-arctica-refrigerator-troubleshooting-tech-sheet/

Please consider giving this procedure a four thumbs up on our rating!

Using FixYa and this procedure has saved you a minimum of $225.00!

Thank you for using fixya!

Keith

on Mar 19, 2011 | Refrigerators

1 Answer

Hi we have a GE fridge PIE23NGTFKB and the temp is fine for two days then changes as if the fridge has gone in to defrost mode then comes good in a day or so then starts all over again


if this happens again unplug the unit from the wall to see if this will reset the mother board if not then more than likely its the mother board in back of the frig with a axcess cover on it, unless you see frost on the back panel of the freezer and is does not go away then I would check the defrost heater and or defrost bi-metal clamps on the evap suction line behind the panel of the freezer.

Feb 13, 2011 | GE (PSS26MSRSS) Side by Side Refrigerator

3 Answers

Model PTS25LBMARWW GE refrigerator not defrosting


Two posibe reasons.
First the defrost heater is damage and need to be replaced. This is the most frequent problem and heater cost only about $32.
http://www.appliancepartspros.com/partsearch/model.aspx?model_id=219674&diagram_id=21697826#d21697826

Second most serious but rear is the electronic control board is faulty and does not give the instruction or power to heater to heat up and melt frost. Need to be replace this is ruther expensive part about $132.
see link
http://www.appliancepartspros.com/partsearch/model.aspx?model_id=219674&diagram_id=21697831#d21697831

Sep 29, 2010 | GE Refrigerators

1 Answer

Looking for defrost timer on gsf25xgrdbb refridge


i do believe this unit has an intergrated in the main pcb board along with the defrost thermostat.
defrost thermostat numberwr50x10028
main pcb( mother board )
part number wr55x10552
hope this helps,

Feb 02, 2010 | GE GSF25XGRBB 36" 25.4 Cu. Ft....

1 Answer

How do i advance the defrost timer


You don't have a defrost timer, you have a mother board probably on the back of the unit. It determines when to defrost based on the usuage of the unit.
you can force defrost with a jumper from J11 to J9, then monitor current. Assuming fridge is freezing , this should supply current to defrost coils. If not working, you have a bad heater or defrost thermostat. If this works, you have a bad mother boar

Sep 04, 2009 | GE GSS20IEPWW / GSS20IEPCC Side by Side...

2 Answers

GE Eterna series Ess23xgsbb That the ice maker makes and but the despinser keepe freezing over. We have taken it out and defrosted it and with in 48 hours it frozen over again


I assume you're talking about the ice dispenser and the ice bin being frozen over.
The water inlet valve on the back of the unit where the water supply comes in can have a slow leak and will cause ice to buildup and block the fill tube and causing the water to spill into the ice bin. Disconnect the ice maker line from the valve and watch to see if it has a slow drip. It doesn’t take much to eventually block the fill tube.

If it overfills and drips, look for an adjustment behind the plastic endcover with a +/- on it. - is less water.

Aug 22, 2009 | GE (PSS26MSRSS) Side by Side Refrigerator

2 Answers

Where is the defrost timer located on ge side bty side model gss25jfmdww


Hi, This model has a mother board instead of a defrost timer. If you are having a defrost issue, the first part you want to test is the defrost heaters. If you need instruction on testing the defrost cycle, please let me know so I can assist you further.

Thanks
Vic

Jul 15, 2009 | GE GSS25JFM Side by Side Refrigerator

1 Answer

Need location of defrost timer


The refrigerator you listed does not have a defrost timer. All defrost and refrigerator functions are controlled on rear of the refrigerator. It's called a mother board. If it s damaged you will sometimes see burns on one of the both sides, but not always. Another problem could be that your defrost element or defrost thermostat is defective. You can see your refrigerator below by putting the model GSS201EMBWW into the model search feature. I am here to help you if you want, Thanks Sea Breeze

http://servicepartstec.blogspot.com/

Here is another link here on FixYa that shows the mother board

http://www.fixya.com/support/t230703-ge_refrigerator_stopped_working

May 28, 2009 | GE GSS25SGMBS Side by Side Refrigerator

1 Answer

Defroster cycle stuck


Unfortunately GE has been having a problem with the main mother boards on your model refer, the mother board controls the defrost cycle and there is not reset for it, you may have a bad board.

Mar 17, 2009 | GE GSS20IEM Side by Side Refrigerator

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