Error code 79.00 FE - HP Mopier 320 w/o scanner Laser Printer

FC stands for "Fan Control" and FE stands for "Fan Error". These codes indicate that there is a problem with the fan control system or the fan itself. You will need to contact a qualified technician to diagnose and repair the problem.

Here is the LG site for washing machine error codes, you can scroll down and find the FE code there:
http://www.lg.com/us/support/product-help/CT10000010-20150140270078-other-error-codes

The site shows the following:

The FE error code indicates the washer is overfilling. This is usually the result of a faulty water valve.

1. Close both water taps.

2. In order to drain out any trapped water, power the washer back on and press the Spin Speed button until No Spin is selected and press the Start/Pause button.

3. Once the washer has drained, restart the wash cycle.

The FE error or fault code indicates that the washer is overfilling due to a defective water inlet valve. The valve is not repairable and will need to be replaced

Fe error code means "Water Overflow Error". Check the upper level sensor of the machine.

Based on my experience, the same thing happens to me as you have mentioned that it happens every end of a cycle. I doubt if it was a fan error or a frequency error. for me, its just a simple overload for the autodrying. for example on my model. the manual says autodrying cotton-cupboard dry must be max 3 kg. since you cannot measure your wet clothes and it sometimes exceed the 3kg autodrying, that is when the FE comes out. but when i remove some clothes or spin the laundry again and put it into drying, everything works fine. when i use the machine with minimal clothes say 2kg dry, the whole cycle up to drying work fine without FE errors.

So i believe its just an error for drying overload. also the manual says nothing about FE nor Error code for drying overload.

Hope this help.

"FE" error code - over flow error
-Check water conection
-Check Water valve for proper operation

When the "FE" error code is displayed the drain pump will be turned on to pump the water out of the washing machine. LG Washing Machine Error Codes

This error code comes up when there is a over flow condition. The error is coming up because a part inside the washer has failed. I suspect the water valve on the back may be the culprit, it's fairly common.

Hope helps.

FE error is due to "Over flow" error. Water is overflowing (water level frequency is over (213) When FE is diplayed the drain will pump out automatically. Water level sensor needs to be replaced.

From the manual ,FE means Water level is too high due to a faulty water valve. hence the possible leak

We did some extensive research and somehow found a service manual for our Samsung unit online. According to its section 4-1 "Error Items and Diagnostic Codes" the following is the problem:
(code) FE - (description) Power source frequency error - (Trigger) Invalid power source frequency - (Action taken) Check for: (a) Not using regular power source frequency (b) Invalid power frequency sense circuit.
In other words, either the thing you have plugged your machine into is faulty, the electricity itself is of poor quality where you live, or the sensor within the unit is faulty and giving an erroneous error code.
In our case, we had our machine hooked up to a cheap surge protector; which we thought might be the likely source of our problem in the light of the error code description above. So I tried connecting it to a commercial extension cord (I still got an FE code). So I tried moving the extension cord to another room's circuit, thinking maybe it was localized in the laundry room (I still got an FE code).
So, I am guessing we either have a bad "power frequency sensor" or the problem is due to the terrible electricity we have where we live (i.e. that the power frequency fluctuates too much due to our local power company's poor system).
Regardless, I hope this answer helps somebody with the "FE code" problem, now that you know what the code means.

We did some extensive research and somehow found a service manual for our unit online. According to its section 4-1 "Error Items and Diagnostic Codes" the following is the problem:
(code) FE - (description) Power source frequency error - (Trigger) Invalid power source frequency - (Action taken) Check for: (a) Not using regular power source frequency (b) Invalid power frequency sense circuit.
In other words, either the thing you have plugged your machine into is faulty, the electricity itself is of poor quality where you live, or the sensor within the unit is faulty and giving an erroneous error code.
In our case, we had our machine hooked up to a cheap surge protector; which we thought might be the likely source of our problem in the light of the error code description above. So I tried connecting it to a commercial extension cord (I still got an FE code). So I tried moving the extension cord to another room's circuit, thinking maybe it was localized in the laundry room (I still got an FE code).
So, I am guessing we either have a bad "power frequency sensor" or the problem is due to the terrible electricity we have where we live (i.e. that the power frequency fluctuates too much due to our local power company's poor system).
Regardless, I hope this answer helps somebody with the "FE code" problem, now that you know what the code means.