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Where is the Adaptive Defrost Board on a Frigidaire GLHS36EEQ6?

I can defrost manually on this model by pressing up on the freezer temp control, while pressing the refrigerator control down 5 times in 6 seconds.
I've suspected the defrost board was bad, but don't know where it is located on this model. I've seen many posts on many sites where this question has been asked, but so far nobody has described that location.

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The board is located under the freezer side of the unit. You can call Sears, as they carry your brand's parts and they will tell you exactly where it is. There are diagrams on the web too. Search for appliance parts. You'll need to enter model number here: www3.sears.com
Fridgidaire refrigerator repair in Orange County, CA

Posted on Feb 05, 2010

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What do OF and UL mean on temp control for ffh17f7hwb Frigidaire upright freezer?


Hello;

My name is peter. I am a retired field service refrigeration technician.

"Of" means you are locked into the defrost mode. This is where your unit will shut down every 8-10 hours. Everything will stop running except for the light. The defrost mode take about 20-30 minutes where the heater turns on and defrost the cooling coil, then the unit turns back on.

Some upright freezer have a separate defrost timer, but not yours.

Your defrost timer is built into your control board.
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PART NUMBER: 297366300 - Cost: $70.00
If you go into the internet you may be able to get the board for $40.00.

Install:
1.) Unplug your unit.
2.) Ground your self by touching bare metal. Static electricity will knock out a board.
3.) With a small flat head screw driver, wedge the outer frame and pop the assembly out. You only have one connector to disconnect. You may need the small screw driver to free the connector.

Dec 24, 2014 | Frigidaire Freezers

1 Answer

Where is the defrost timer on a frigidaire fghn2844lf2


Good Morning Debbie,

I see that you are looking to see what turns on the defrost timer and evaporator fan on your Frigidaire refrigerator, model# FGHN2844LF2. Your appliance comes equipped with an Adaptive Defrost Control (ADC). To activate manual defrost, simultaneously press and hold the Fresh Food up (+) and Fresh Food down (-) keys for 5 seconds. A "d" in the freezer temperature window and "F" in the refrigerator temperature window will display when the heater is activated. To deactivate manual defrost, simultaneously press and hold the Fresh Food up (+) and Fresh Food down (-) keys for 5 seconds. A "d" and "F" will be displayed until the defrost cycle is complete. I hope this is helpful.

-Best Regards-

Mar 19, 2014 | Frigidaire FGHB2844LF Gallery 27.8 Cu. Ft....

1 Answer

We have a Kenmore Elite Freezer Model #253.29082994. We had the freezer plugged in and it was working fine. We unplugged it and moved it and now when we plug it in it won't start. Is there some kind of...


You refrigerator was made by Frigidaire Adaptive Defrost Controls Frigidaire Refrigerator Trouble Shooting and Diagnosing
On the initial plugin, or when power is restored to the fridge after a power outage:
If terminating thermostat is open, the fridge enters a compressor (cooling) cycle.
If the terminating thermostat is closed, the first defrost cycle occurs 1 hour
after initial plug-in.
Maximum defrost cycle time is 24 minutes.
Minimum time between defrost cycles is 6 hours. (compressor runtime)
Maximum normal clock time between defrost cycles is 12 hours.
Maximum time between defrost cycles (in "vacation" mode) is 72 hours.
Vacation mode is not entered unless the door has not been opened in at least 24 hours.
Note that the ADC will only enter the defrost mode if the terminating thermostat is closed. If the terminating thermostat is open when defrost is initiated, the ADC board will wait for six minutes and then return to the cooling mode.
ASSUMING that the fridge has been on and running,
and the terminating thermostat is closed,
defrost is initiated by pressing the door (light) switch
at least five times within six seconds.
The defrost heater should start heating up within 8 seconds.
If the above procedure caused the heater to heat up, the ADC board is probably bad; replace it.
If the defrost heater does not heat up, test the defrost heater, terminating thermostat and cold control for continuity as follows:
Unplug the fridge from the wall. Unplug the ADC board from its connector.
Test the connector for continuity between the following leads:
Defrost Heater = DEF TERM (blue) to DEF OUT (brown).
Terminating Thermostat = DEF TERM (blue) to NEUTRAL (lt blue).
Cold Control = COLD CONTROL (orange) to L1 (black).
Replace the defective component.

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Apr 26, 2011 | Kenmore Freezers

1 Answer

This is a freezer with Danfoss type temp and defrost control, customer complain that unit is tripping braker about once a day , when switching to defrost or from defrost to freeze cycle, controller is...


There is definately a ground fault in this unit. Also according to the service manual this is an "Electronic Defrost Control" similar to an "
Adaptive Defrost Control" which determins the defrost initiation by the amount of run time. You cannot set this yourself.

Dec 08, 2010 | Delfield Freezer 6151XLSR Stainless steel

1 Answer

I have a kenmore upright frost free freezer mod #253.26432100. A couple of months ago everything defrosted and the unit was not running at all. I unplugged it cleaned it and plugged it back in, it turned...


You have a problem with the ADC.

Frigidaire has also jumped into the market with an adaptive defrost board. The fresh food section light switch and light bulb must work. To initiate a defrost cycle, open the door and push the light switch in and out 5 times within 6 seconds. The compressor and fans should shut off and the defrost heater should come on. Open the door and push the light switch in and out 5 times within 6 seconds to remove the refrigerator from the defrost mode and back into a cooling mode.



This product comes equipped with an Adaptive Defrost Control (ADC). To activate manual defrost, press and hold the Freezer temperature UP (WARMER) key while pressing the Fresh Food temperature DOWN (COLDER) key 5 times within 6 seconds. A "d" in the freezer temperature window and "F" in the refrigerator temperature window will display when the heater is activated. To deactivate manual defrost, press and hold Freezer temperature UP (WARMER) key while pressing the Fresh Food temperature DOWN (COLDER) key 5 times within 6 seconds. "d" and "F" will be displayed until the defrost cycle is complete. (approx. 8 minutes)

Nov 23, 2010 | Frigidaire 20.3 cu. ft. / 575 liter...

2 Answers

The freezer is running, and the light is all coming on but it is not freezing the contents in the freezer?


Hi and welcome to FixYa. I am Kelly
If your sure the compressor is running and it is not freezing then there has to be a system coolant leak.
Having said that there are a few things to check:
1. Is the compressor in fact running Y / N
a. Yes = coolant level problem or coolant system blockage
b. Not running = (Possibilites below)
1) PTC / Klixon Thermal overload failure
2) Run capacitor failure
3) Temp control failure
4) Automatic defrost thermostat or thermistor
5) Defrost timer or Adaptive defrost control failure (depending on model)
2. Is the compressor very hot to the touch or room temp?
a. VERY hot = unplug the unit for at least 30 minutes and then plug it back in.
b. ROOM temp = any of the above in 1b items 1) - 5)
3. Is the evaporator fan running?
a. Yes = Temp control is ok Defrost system is probably ok
b. No = same as 2b

With a model number I could pass on a few additional things to do. For the moment use the above.

Thanks for choosing FixYa,

Kelly

Oct 18, 2010 | Kenmore 20.3 cu. ft. / 575 liter Upright...

1 Answer

It just stop freezing, how to I check if it is the compressor problem?


. Cut everything off for a few minutes then turn it back on and listen for a click from the compressor relay as the compressor tries to start.
Is the compressor motor running.If no check starter/overload relay.
Check to see if the condenser fan at the back underneath near the compressor is running. If no check fan.

Are the condenser coils near there warm or room temp. should be warm


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.

If you need help finding your model number see here> http://www.appliancepartspros.com/modelnumber_locator.aspx

To locate your timer, motherboard, control or adaptive defrost control , enter your model number and search for the part or post back on Fixya.
http://www.searspartsdirect.com/partsdirect/index.action?psid=26129238&sid=PSx20071217x00001a

Oct 04, 2009 | Frigidaire 14.1 cu. ft. Upright Freezer...

1 Answer

Frigidaire side by side works fine for a couple of days then it starts to get warm, milk gets warm n ice starts melting. i unplug for a day n i when i plug it back in tll work for a couple of days...


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.

If you need help finding your model number see here> http://www.appliancepartspros.com/modelnumber_locator.aspx

To locate your timer, motherboard, control or adaptive defrost control , enter your model number and search for the part or post back on Fixya.
http://www.searspartsdirect.com/partsdirect/index.action?psid=26129238&sid=PSx20071217x00001a

Sep 25, 2009 | Freezers

1 Answer

Sides of freezer are hotter than normal. no air sound when closing door,is this a defroster problem?


First check the condenser fan underneath near the compressor. It should run when the compressor runs.
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.

If you need help finding your model number see here> http://www.appliancepartspros.com/modelnumber_locator.aspx

To locate your timer, motherboard, control or adaptive defrost control , enter your model number and search for the part or post back on Fixya.
http://www.searspartsdirect.com/partsdirect/index.action?psid=26129238&sid=PSx20071217x00001a

Sep 24, 2009 | Frigidaire 14.1 cu. ft. Upright Freezer...

1 Answer

The freezer stopped freezing... the temp now reads 40deg (and climbing) and the fridge reads 45deg. I'm mopping up puddles on the floor.


It is possible the refrigerator has gone into defrost and stuck there. I'm not sure what features to tell you to look for but you probably have a defrost timer or something called Adaptive Defrost Control board. They are the part that most likely causes the problem. If you could send me the model number found on the door frame on most refrigerators I would help you locate the parts.. Anyway when they stop cooling like that it reminds me of a defrost timer caught in the defrost cycle and the only way to locate it and turn it clockwise may get you going until the defrost timer can be replaced. I have seen thermostats do the same thing. Thanks Sea Breeze

Aug 17, 2009 | Frigidaire Freezers

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