Question about GE Refrigerators

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I have a GE profile Fridg PSS26NSTASS where is the defrost timer located

Apparently the defrost themostat is in the rear of the freezer section behind the panel where is the defrost timer located or is it on the mother board

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  • Joe McGoran Feb 17, 2012

    Thanks for the help That's what I kind of figured the timer being built into the mother board I took the defrost thermostat out and checked with a ohm meter and it's open when cold below 32 degree's so theres the prblem the heater won't come on

  • John Tripp
    John Tripp Feb 18, 2012

    Great Thanks for the Rate! Yes I really never had any problems related to the timing of the defrost cycle on your model. Mostly the defrost heater and then sometimes a defrost thermostat. You can manually force defrost by turning the temperature up warm on controls and carefully jump J11 with J9 on the motherboard located here=>http://appliancepartsseabreeze.com/GE_Ar...
    And clamping a amp probe around jumper to see the amp draw. And with most of the defrost heaters you can just about see when a defrost heater is burned out because the glass around heater is smoked over. Take care and again Thanks, JT

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  • GE Master
  • 4,654 Answers

The PSS26NSTASS does not have a defrost timer. The defrost on that model is controlled by the motherboard=> WR55X10942 Board Assembly Main Control On your model if not defrosting it will most likely be caused by the=> WR51X10055 Defrost Heater It also does not hurt to replace the=> WR50X10068 Defrost Thermostat
while inside freezer changing out the defrost heater. Click here=> PSS26NSTASS Freezer Components
In that photo location 230 is your defrost heater and location 240 is your defrost thermostat. Here is a=> PSS26 Service Manual if you don't already have Adobe Acrobat Reader Click HERE I will be here should you have any questions, Thanks Sea Breeze

Posted on Feb 17, 2012

  • John Tripp
    John Tripp Mar 13, 2012

    Thank You for the Rate! John Tripp

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 183 Answers

SOURCE: Freezer won't stay defrosted

defrost heater is behind the freezer rear panel along with the defrost sensor,check doors are sealing correctly, usual fault on this unit isdefrost sensor

Posted on Sep 02, 2007

docjohn174
  • 943 Answers

SOURCE: On a standard frost-free fridge's

hi thanks for the question did you remove the funnel shaped piece cause thats where it builds up remove thst piece an clean thanks the appliance doc

Posted on Sep 18, 2008

woodchuck789
  • 4070 Answers

SOURCE: Side by side freezer and fridg. Freezer ices up

Normal 0 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} The evaporator coil behind the cover on the back wall inside the freezer will ice up under normal conditions. Every 8 to 10 hours for around 20 minutes the defrost timer (or in most newer models the electronic adaptive defrost control) will turn the defrost heater on to melt the built up ice. There is a defrost thermostat which prevents the heater from overheating the freezer by breaking the heater circuit when the temp reaches close to 32 degrees F. The entire cooling system shuts off during the defrost cycle and starts back when the timer advances through the cycle.

If this ice is not melted it will continue to build up until the air can’t flow over the coil to circulate the cold air through the freezer and into the fridge. The temperature change in the fridge is usually noticed first followed by the freezer.

If the defrost thermostat is bad it can prevent the heater from coming on OR it won’t turn the heater off when it gets too warm. It is clamped to the evaporator coil at the top to sense the temp. If it appears to be misshapen it is bad.
With an ohm meter it should show continuity when cold and none when warm.
You can also bypass the thermostat to see if the heater comes on then. If it does then you know the thermostat is bad and needs replaced.

The defrost heater is located on the evaporator. It is in a tube which is at the bottom and can also go up the sides of the evaporator. On some types you can see a burnt spot if it’s bad. With an ohm meter it should show continuity from end to end when disconnected from the wiring in the freezer. You can also test the wiring for voltage when it’s in the defrost mode.

If you have a defrost timer you can test it. It can be located under the fridge behind the kick panel on the front. Some are in the fridge with the controls at the top. You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer because that means the timer is not running. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.

If you have an adaptive defrost control instead of a timer, replace it if the heater and thermostat test good. It is located in the fridge with the controls in some models and on the back in others.

Posted on Dec 08, 2009

dmftrucker
  • 1922 Answers

SOURCE: freezer side ok, refrigerator side not

check to make sure the damper door in between the freezer and refrigerator section is opening fully as you turn the cold control knob colder,some freeze up due to ice formation if so remove it and clean up ice on damper so it can open fully

Posted on Dec 24, 2009

woodchuck789
  • 4070 Answers

SOURCE: bottom freezer section iced up solid.-- Fan inside

DEFROST PROBLEM
The evaporator coil behind the cover on the back wall inside the freezer will ice up under normal conditions. Every 8 to 10 hours for around 20 minutes the defrost timer (or in most newer models the electronic adaptive defrost control) will turn the defrost heater on to melt the built up ice. There is a defrost thermostat which prevents the heater from overheating the freezer by breaking the heater circuit when the temp reaches close to 32 degrees F. The entire cooling system shuts off during the defrost cycle and starts back when the timer advances through the cycle.

If this ice is not melted it will continue to build up until the air can’t flow over the coil to circulate the cold air through the freezer and into the fridge. The temperature change in the fridge is usually noticed first followed by the freezer.

If the defrost thermostat is bad, it can prevent the heater from coming on OR it won’t turn the heater off when it gets too warm. It is clamped to the evaporator coil at the top to sense the temp. If it appears to be misshapen it is bad.
With an ohm meter it should show continuity when cold and none when warm.
You can also bypass(disconnect the two wires plugged into it and twist them together) the thermostat to see if the heater comes on then. If it does then you know the thermostat is bad and needs replaced.

The defrost heater is located on the evaporator. It is in a tube which is at the bottom and can also go up the sides of the evaporator. On some types you can see a burnt spot if it’s bad. With an ohm meter it should show continuity from end to end when disconnected from the wiring in the freezer. You can also test the wiring for voltage when it’s in the defrost mode.

If you have a defrost timer you can test it. It can be located under the fridge behind the kick panel on the front. Some are in the fridge with the controls at the top. You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer because that means the timer is not running. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.

If you have an adaptive defrost control instead of a timer, replace it if the heater and thermostat test good. It is located in the fridge with the controls in some models and on the back in others. You can post your model number into one of several appliance parts sites on the internet and search for defrost components to find your parts.

Posted on Feb 19, 2010

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Lets begin by placing defrost timer into forced defrost. The defrost timer is inside the fresh food compartment and behind the control panel above the top shelf. Click Here=> 215846602 Defrost Timer

sea_breeze_274.jpg Try turning the timer clockwise slowly until you hear compressor and fans stop. Allow to remain here for 30 minutes. The timer if good should come out of defrost itself but if not it is a clear indication that the timer be replaced. You also should hear a crackling or sizzle coming from the freezer with door open. Also water should drain down to a condenstate tray below refrigerator into a tray that compressor fan warms to return back into air inside your home. If not timer causing the ice blocking airflow then we have the defrost heater and defrost thermostat to examine. They are located behind the rear panel inside freezer The=> 5317842502 Defrost Heater
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