Question about Frigidaire GLEQ2152ES Electric Dryer

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Kenmore Oasis dryer F40 error code

I am suddenly getting an F40 error code on my dryer. I have vacuumed, unplugged, reset GFI, etc., to no avail. What does this code indicate, and how can I fix it? Do I HAVE to call for service? Thanks for your kind response.

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  • jamiecarson Dec 14, 2008

    I went to start my Kenmore Elite Oasis gas dryer this morning and I

    got the f40 code on the display. I called Sears to have it fixed and

    they can't be out here for 12 days! I have four children and TONS of

    laundry daily. Can anyone help?

  • dee51971 Jan 29, 2009

    I also am getting the F40 code. I used the dryer and then when I put in a second load to dry, I got the F40 code. I called service, and they had me unplug the dryer for 30 seconds and then hit the power button, push cancel 2 times, and then select cycle and then hold start button, and she said it should start, but it did not. They are only in our area 2 days a week and can't come for 5 days, and I have a family of six, and fall behind if i miss one day of laundry. This is ridiculas!!

  • cdomian
    cdomian Nov 06, 2013

    I was also getting the F40 code. Didn't have anything to loose, so I tried the above button pushing and it worked for me.

  • Anonymous Mar 12, 2014

    dryer runs, for short amount of time, does not light, then shuts off and error code f40 is displayed

  • J Twid
    J Twid Apr 26, 2014

    This has been quite a struggle for me. I have chased this around for afew days now. I placed solder on the board to tighten connectors, and also checked fuses and even replaced the 12 volt relay on the board as it had toasted through the other side and suspected poor contacts. All seemed to have some effect but problem kept comeing back. Recently I watched some youtube videos on takeing dryers apart to find the other end of the wires. THere is a P/N 8557403. It is a high limit themostat. I placed it on a frying pan to check with my ohm meter and found that it did not always open around 150 degrees F. It also has a thermistor on it and I feel that it's limit would exceeed the limits and fault the F40 as it has two red wires that go to the P4 board plug also. I belive that it was not opening and out of rangeing the thermistor to cause the P40 fault. I have ordered a part hope it will fix it.

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I had this same issue. My dryer would run and heat up but then stop and give me the f40. I measured all thermisters and everything was in range. The tech sheet stated that I needed to buy a new control board and I did. Same problem.
The solution was a loose connection on for p4. I took needle nose pliers and squeezed the connector to make it fit tight on the board and everything is working now.
Bottom line, expensive dryer with cheap connectors.

Posted on Apr 21, 2009

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  • mmmuller Sep 23, 2010

    Thanks.

    I have a Kenmore Elite Oasis ST #110.68082701, and bilkearson was right, you take the three screws of the back of the control box and when removed you will see another control box on the right, the P4 plug is on the top left of that box, you will see the P4 number on the circuit card adjacent the plug, mine was white plug with red wires. I gently pulled out the plug and squeezed the plug, and put it back and my dryer is running, the person above just save me $200,00 for a service call. Thanks

  • rhatley Oct 14, 2010

    Excellent tip. I had the same F40 code. In reality the exhaust blower was not running (take off the vent hose and feel if air is coming out), so I would get the code almost immediately. After reseating the P4 connection as instructed it started working again. I too have the same Kenmore Elite Oasis model #110.68082701 bought earlier this year brand new. Must be a factory defect. Thanks for saving me $$$.

  • trlengle Mar 31, 2011

    Where is the control panel, on the back? I have model 110.6708, maybe it is different. I'm getting the F40 error so I wanted to try your fix.

  • trlengle Mar 31, 2011

    Okay, I figured out how to access the control box, unseated P4, tighten the connectors, reseated but still getting the F40 error code. Any ideas? Maybe I do have a bad control board. Thanks!

  • Kevin Johme
    Kevin Johme Jun 13, 2015

    Thank You works Great now

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F40 is a error that appears between the machine control and the motor control when communication becomes lost. Check the connection between the two. The error codes whould be on the tech sheet beneath your console panel along with how to check for this error. Contact service they should be able to give you more information

Posted on Dec 12, 2008

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Had same problem. checked everything the machines "tech sheet" said to check. after no luck, called Sears and purchased the $190 service agreement. Tech came out, told him everything I had already done, he checked the Thermal Fuse located on top of the blower housing just below the drum, it was blown, replaced it ($39.00 part) and plugged the dryer back in and it worked! Fuse was blown and the Tech Sheet makes no mention of it as a possible problem with the F40 code. save your money, check the Thermal Fuse. Part No. 3390719

Posted on Nov 10, 2012

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  • Chad Trautvetter Jun 16, 2014

    After my dryer worked for six months after doing dickbambam's solution below, our dryer started flashing the F40 code yet again. I did check the thermal fuse as Matt suggests above, but it had continuity on my multimeter so it was working properly (btw, the thermal fuse is a $16 part at Sears Parts Central, not $39 -- if you pay $39, you're being ripped off). After a lot of troubleshooting, I found that the control knob was the problem. The symptoms of a malfuntioning control knob is the LED lights aren't lit in their normal positions after power on (for example, the "dryness level" light starts on "high" instead of normal), an on-and-off clicking sound (that's the relay on the main control board) and then the F40 error a few seconds later. I also found that lightly and repeatedly pushing the control knob in and letting it go out after starting the dryer made the relay click even more. And when I constantly and lightly pushed on the control know after starting the dryer, it would continue as normal without flashing the F40 error code. To fix it, I used CRC QD (Quick Dry) Electronic Cleaner ($4.77 in Wal-Mart, in auto section next to brake cleaner). After unplugging the dryer (VERY IMPORTANT), pull the knob handle off the washer, spray the cleaner where the switch meets the face of the control panel and lightly put the knob handle back on and twist it around to clean the contacts inside. Repeat two or three times to make sure the control switch is cleaned.

  • Chad Trautvetter Jun 16, 2014

    After my dryer worked for six months after doing dickbambam's solution below, our dryer started flashing the F40 code yet again. I did check the thermal fuse as Matt suggests above, but it had continuity on my multimeter so it was working properly (btw, the thermal fuse is a $16 part at Sears Parts Central, not $39 -- if you pay $39, you're being ripped off). After a lot of troubleshooting, I found that the control knob was the problem. The symptoms of a malfuntioning control knob is the LED lights aren't lit in their normal positions after power on (for example, the "dryness level" light starts on "high" instead of normal), an on-and-off clicking sound (that's the relay on the main control board) and then the F40 error a few seconds later. I also found that lightly and repeatedly pushing the control knob in and letting it go out after starting the dryer made the relay click even more. And when I constantly and lightly pushed on the control know after starting the dryer, it would continue as normal without flashing the F40 error code. To fix it, I used CRC QD (Quick Dry) Electronic Cleaner ($4.77 in Wal-Mart, in auto section next to brake cleaner). After unplugging the dryer (VERY IMPORTANT), pull the knob handle off the washer, spray the cleaner where the switch meets the face of the control panel and lightly put the knob handle back on and twist it around to clean the contacts inside. Repeat two or three times to make sure the control switch is cleaned.

  • Chad Trautvetter Jun 16, 2014

    Sorry for the double post above. Anyways, this is the first time I've heard of a dirty control knob causing the F40 code, but given the nature of electronics, I can't say I'm surprised at all. This problem has been maddening and I was on the verge of just getting rid of the dryer and buying a new one, but I'm glad I persisted. Good luck to others who have the mysterious F40 code.

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I just had and fixed this problem with my Elite Oasis dryer with F40 codes. My model does not have separate machine and motor control boards just the machine control board. I eliminated the thermal fuse as the problem. What I had to do is build up the edge connectors on the machine control board for P4 with solder to give the P4 plug a more secure fit. After doing that no more F40 codes. Before doing that beating the user interface or unplugging the power would work But after I had taken the P4 plug off several times in troubleshooting the fit was even more sloppy and that no longer worked. Be sure not to bridge adjacent connectors with too much solder.

Posted on Jun 25, 2013

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  • dickbambam Jun 25, 2013

    I just had and fixed this problem with my Elite Oasis dryer with F40 codes. My model does not have separate machine and motor control boards just the machine control board. I eliminated the thermal fuse as the problem. What I had to do is build up the edge connectors on the machine control board for P4 with solder to give the P4 plug a more secure fit. After doing that no more F40 codes. Before doing that beating the user interface or unplugging the power would work But after I had taken the P4 plug off several times in troubleshooting the fit was even more sloppy and that no longer worked

  • dickbambam Jun 25, 2013

    I just had and fixed this problem with my Elite Oasis dryer with F40 codes. My model does not have separate machine and motor control boards just the machine control board. I eliminated the thermal fuse as the problem. What I had to do is build up the edge connectors on the machine control board for P4 with solder to give the P4 plug a more secure fit. After doing that no more F40 codes. Before doing that beating the user interface or unplugging the power would work But after I had taken the P4 plug off several times in troubleshooting the fit was even more sloppy and that no longer worked. Be sure not to bridge adjacent edge connectors with too much solder.

  • dickbambam Jun 25, 2013

    I just had and fixed this problem with my Elite Oasis dryer with F40 codes. My model does not have separate machine and motor control boards just the machine control board. I eliminated the thermal fuse as the problem. What I had to do is build up the edge connectors on the machine control board for P4 with solder to give the P4 plug a more secure fit. After doing that no more F40 codes. Before doing that beating the user interface or unplugging the power would work But after I had taken the P4 plug off several times in troubleshooting the fit was even more sloppy and that no longer worked. Be sure not to bridge adjacent edge connectors with too much solder.

  • Chad Trautvetter Nov 24, 2013

    As ridiculous as I thought dickbambam\'s solution was, the solder build-up on the P4 board pins worked for me, too. My best guess is that the vibration of the dryer causes the connection to vibrate and wear down the pins on the board and loosen the P4 wire connector pins, too. If you can\'t build up the solder on the board or don\'t know anyone who can for you, the only other fix would be to buy a new board and the P4 wire and install both of them, even though the old board is still technically OK except for the finnicky P4 connection. We\'ve had the dryer for nearly 7 years before we saw this problem, btw. While it\'s a pain in the butt, I\'d also recommend taking the drum out and vacuuming out the inside of the dryer--we had a ton of lint in there even though we religiously clean the lint filter before every load. The lint is definitely a fire hazard since it\'s in the vicinity of the heater element. In fact, our had some burnt lint/hair on top of the heater element. Kinda scary when you think about that...

  • dickbambam Jun 18, 2014

    No the real problem is cheap connectors. Looking at thje connector it seemed to me it didn't lend itself to being crimped to creat a tighter fit. That is why I made the edge connectors on the control board thicker using solder which in essence is the same as crimping the connector.

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What I found was a fuse in the control panel it was a 4amp it was blown its connected to the thermistor the black wire that goes to the thermo fuse it connected to the motor control board

Posted on Aug 10, 2012

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Before you waste a penny. over the years i usually get an F1 code, this time i got an F40. what happens is the vibration from the dryer loosens the connectors on the pane.l twice I've had repairman here under a home warranty plan usually when the washer acts up because it doesn't cost extra to have them check both. twice they changed the control box which probably costs the warranty company a lot of money. unplug the dryer. loosen the three screws in the back that hold the control panel cover on the top of the machine. pull forward and take it off and lay it on the machine, the wires are long enough. pull off and reset the connectors pushing them in tightly, particularly the ones on the left control module. the right one is probably fine, its usually the left one. plug the machine back in and test. if that don't work try the right panel plugs. now, these are the modules on the top of the machine, i have never touched anything in the cover you take off. it will probably be fine until they get loose again. maybe one month, maybe six months maybe never. i'm not a repairman, just a Do it yourselfer

Posted on Oct 11, 2015

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1 Answer

What does the code F40 mean


I know that it can be very frustrating to have issues with your dryer. In the console there are two control boards. One is the machine control and the other is the motor control and the F40 error indicates a communication error. That means the two controls are not talking to each other. There is a test that you can perform to determine what is causing the issue. The image below will provide these instructions for you. Once you have determined this, then you can replace the correct part.


Click on image10_19_2012_2_15_23_pm.jpg

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Kenmore Elite Oasis Electric Dryer - no power (PF code)


Press and hold the "Start" button to restart the dryer cycle if the "PF" (power failure) error code appears. This code often appears when a cycle is interrupted before it completes. You may also check the breaker or household fuse, and ensure the machine has not come unplugged.


Read more: How to Repair Kenmore Elite Oasis Dryer Error Codes ' eHow.com http://www.ehow.com/how_7703883_repair-oasis-dryer-error-codes.html#ixzz1u

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Dryer wont run gave me f40 code, can you help me?


I found two possibilities for an F40 code.

1) Error Code F40 is that the thermal fuse has blown.

2) The F40 error code is a communication problem between the machine control board and motor control board. A bad connection might or might not cause this.

Dec 23, 2010 | Kenmore Elite Oasis 6808 Electric Dryer

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F40 faults on Kenmore Oasis dryers


The F40 error is a communication error which means the main control W10111616 is not communicating with the motor control part number 8544799.

First - go through the machine and check all harneses 7 plugs. This expensive machine uses the cheapest parts possible. Unplug and re-plug all connections you can find.
Particularly the controller (CCU) and motor.


Most likely neither control is the problem but since the main control was replaced we know it's not the problem.

The key to diagnosing this problem is to check voltage to the motor control. There is a black and white wire going to L1 and neutral.
Refer to the wiring diagram for an image of this.
If there is 120 volts to the control and the blower motor is not running then the 8544799 motor control is most likely at fault.

It is more likely you will not read voltage there.
Use extreme caution checking live voltage and only do so if you're comfortable and confident using a volt/ohm meter.

If there is no voltage to the motor control and the main motor doesn't run the thermal fuse can be at fault or the main control which was replaced and didn't help.

From the description you give I believe the main motor is running when you get the F40 code so the thermal fuse and main control are most likely okay.

If there is no voltage to the motor control then the problem can be a fuse link that may be open preventing voltage from getting to the motor control.

This part is not the thermal fuse and is not listed in the parts diagram or even shown on the wiring diagram. The fuse link is most likely the cause of your troubles.
If the inline fuse link is open you will have to replace the entire wire harness. The inline fuse link is not available as a separate part.


Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

Sep 24, 2010 | Kenmore Elite Oasis 7808 Gas Dryer

1 Answer

Model 110.78082701 F40 error code what does it tell is bad?


F40 is a error that appears between the machine control and the motor control when communication becomes lost. I had this same issue. My dryer would run and heat up but then stop and give me the f40. I measured all thermisters and everything was in range. The tech sheet stated that I needed to buy a new control board and I did. Same problem.
The solution was a loose connection on for p4. I took needle nose pliers and squeezed the connector to make it fit tight on the board and everything is working now.
Bottom line, expensive dryer with cheap connectors.

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Kenmore elite oasis dryer model #110.6708 will not operate. flashes f-40. what does f-40 mean?


F40 = thermal fuse blown.
If the fuse is OK the error points to a communication problem between the machine control board and motor control board (check connectors).

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My Kenmore Oasis Dryer will not run and has an F 40 code. What is wrong with it?


Get the model number and go to:

http://www.searspartsdirect.com/partsdirect/modelHelp.pd?pop=flush&modelNumberId=18

The F40 code can mean a thermal interrupt or a loss of connection between the control circuit board and the motor circuit board.

Perito posted this on askmehelpdesk.com:

I found two possibilities for an F40 code.

1) Error Code F40 is that the thermal fuse has blown.
2) The F40 error code is a communication problem between the machine control board and motor control board. A bad connection might or might not cause this.

If you post your model number, or download the owner's manual from the above link, you'll probably find out what it means, at least.

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