Question about Dryers
Dryer suddenly started flashing F 40 code and sopped working. what does this mean?
Posted by Anonymous on
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Posted on Jan 02, 2017
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).
Posted on Mar 19, 2010
This symptom indicates a stuck key on the user interface control board.
Replacing this control board would most likely fix this type of problem.
The part number for the user interface for this model is 8564374.
You can order this part from SearsPartsDirect.com, RepairClinic.com, PartSelect.com etc.
The procedure for replacing this control board is shown in the images below.
Before buying any parts I suggest you access the interface ribbon and disconnect it and then connect it back and see if there is any improvement.
You might also remove the interface from the console and check the console for any stuck buttons.
Remember to unplug the washer first.
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Posted on Sep 16, 2010
The F70 and F71 error codes on this model of washer indicates a communication problem between the user interface control board and the central control unit (main control board). These error codes can sometimes be caused by a power surge or glitch through the electrical lines. Try unplugging the washer to completely disconnect electrical power. Wait 1 minute and then plug the washer back in to the see if the fault code clears. If it does, then the washer may work normally.
If the code reappears, then you could have a wire harness connection problem, a failed user interface control board or a failed central control unit. I recommend calling a service technician to properly diagnose and repair this type of problem so that the correct component can be replaced.
Be sure your unit is plugged into a 3 prong grounded outlet as well.
F71 is a "heatbeat failure" which means that your front interface control board is shorted and will need to be replaced. it's actually fairly easy to replace and can definitely be done by yourself. To access the part, just pull the unit forward and remove the 3 screws coming in from the back of the top panel. Remove the top panel by pulling it back, up, and off. Then remove all the screws going into the top of the control panel. Remove the dispenser drawer and remove the screws coming in through the dispenser. Remove the screws coming from the inside of the dryer going forward into the control panel, then remove the control panel (it's just clipped in on the bottom. After that you can disconnect the wire harnesses to the front interface control board and replace that part.
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Posted on Sep 28, 2010
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