Our samsung heatpump dryer dv90h8000hw has a HE error that a technician cleared by pressing two buttons when he came out to look at it. I forgot what the key combination was and how to reset it.

https://removeandreplace.com/2015/08/10/samsung-refrigerator-error-codes/

A power outage will make your Samsung fridge show the errors 1E and or SE. If this is the case, simply press the power save and lighting buttons for 10 seconds and the error will clear. OR... press the fridge and freezer buttons at the same time for 10 seconds to reset the control panel and clear the error code.Dec 10, 2016 https://removeandreplace.com/2016/12/10/samsung-refrigerator-flashing-blinking-faults-reset/
https://www.youtube.com/watch?v=4XW0fW9NjGU

https://www.samsung.com/us/support/troubleshooting/TSG01001745/

Replace the moisture sensor bar if damage is found. Check and or Repair = Remove power to the dryer for 10 minutes to try and reset the control board. If the error code comes back after restoring the power to your dryer then replace the electronic control board. Check and or Repair = Remove power to the dryer.
https://removeandreplace.com/2015/12/23/samsung-dryer-error-fault-codes-what-to-check-how-to-clear/

E1 is a general error. It means you can't press those buttons in that order. Press clear button to clear the error. Then enter any correct key sequence to continue

That sounds like a power glitch. Try pressing and holding the power freeze and power cool buttons at the same time for about 8 to 13 seconds and see if it clears. If not try unplugging for a few minutes. If it still doesn't clear, you may need to call a repair technician.

A "dc" error occurs when a Samsung washer is unable to spin due to an unbalanced load. Redistributing the items inside the washer and pressing the "Start/Pause" button typically clears this error
.

E61 means you have the neutral and the L2 wire either reversed or in the wrong position. ENTER TEST MODE SEQUENCE by doing the following . 1.Disconnect thepower for 30 seconds.2.Reconnect the power and within 30 seconds press the sequence of buttons listed below.3.Press the "SIGNAL"button.4.Press the "DELAY START"button.5.Press the "SIGNAL"button.6.Press the "DELAY START"button. Now after you have fixed the reveresed wiring problem you will need to remove the fault code fromt he memory otherwise the machine will not work. To remove the fault code do the following ENTER TEST MODE
SEQUENCE (cont.)
You will notice "t01". To choose the test mode that you want toverify, turn the knob to the desired test mode setting.
Push the start/pause button.To cancel the test mode, press on "power".
You will be able to choose another test mode and again press on "start/pause".
The display error codes test allows the service technician to examine and clear the fault log.
DISPLAY ERROR CODES TEST
(t02)
The display error codes test allows the service technician to examine and clear the fault log.
The control shall display the most recent error in the fault logupon entry into the display error codes test. If there are no errors in the fault log, the no error code "E00"shall be displayed on the 7-segment display.
The control shall clear the displayed error from the fault log if the start key is pressed during the display error codes test. After clearing thedisplayed error from the fault log, the appliance shall display the next most recent error from the fault log.
After clearing all errors from the fault log, the control shall display the no error "E00"code on the 7-segment display.
The control shall log the last 8 error codes in the non-volatile memory stored in a circular list.
The control shall avoid logging multiple instances of the same error code. now unplug the appliance for about 30 seconds and replug and everything should be fine



credit to the original author of this solution rcadieux4444

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Sorry to read about your problem, I hope this helps you out.

you should have a electrician work on your wiring, with luck no further damage has happened, E61 means you have the neutral and the L2 wire either reversed or in the wrong position.

ENTER TEST MODE SEQUENCE by doing the following . 1.Disconnect the power for 30 seconds.
2.Reconnect the power and within 30 seconds press the sequence of buttons listed below.
3.Press the "SIGNAL"button.
4.Press the "DELAY START"button.
5.Press the "SIGNAL"button.
6.Press the "DELAY START"button.

Now after you have fixed the reveresed wiring problem you will need to remove the fault code fromt he memory otherwise the machine will not work. To remove the fault code do the following ENTER TEST MODE
SEQUENCE (cont.)
You will notice "t01". To choose the test mode that you want toverify, turn the knob to the desired test mode setting.
Push the start/pause button.To cancel the test mode, press on "power".
You will be able to choose another test mode and again press on "start/pause".
The display error codes test allows the service technician to examine and clear the fault log.
DISPLAY ERROR CODES TEST
(t02)
The display error codes test allows the service technician to examine and clear the fault log.
The control shall display the most recent error in the fault logupon entry into the display error codes test. If there are no errors in the fault log, the no error code "E00"shall be displayed on the 7-segment display.

The control shall clear the displayed error from the fault log if the start key is pressed during the display error codes test. After clearing thedisplayed error from the fault log, the appliance shall display the next most recent error from the fault log.

After clearing all errors from the fault log, the control shall display the no error "E00"code on the 7-segment display.
The control shall log the last 8 error codes in the non-volatile memory stored in a circular list.

The control shall avoid logging multiple instances of the same error code. now unplug the appliance for about 30 seconds and replug and everything should be fine.

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E61 means you have the neutral and the L2 wire either reversed or in the wrong position. ENTER TEST MODE SEQUENCE by doing the following . 1.Disconnect thepower for 30 seconds.2.Reconnect the power and within 30 seconds press the sequence of buttons listed below.3.Press the "SIGNAL"button.4.Press the "DELAY START"button.5.Press the "SIGNAL"button.6.Press the "DELAY START"button. Now after you have fixed the reveresed wiring problem you will need to remove the fault code fromt he memory otherwise the machine will not work. To remove the fault code do the following ENTER TEST MODE
SEQUENCE (cont.)
You will notice "t01". To choose the test mode that you want toverify, turn the knob to the desired test mode setting.
Push the start/pause button.To cancel the test mode, press on "power".
You will be able to choose another test mode and again press on "start/pause".
The display error codes test allows the service technician to examine and clear the fault log.
DISPLAY ERROR CODES TEST
(t02)
The display error codes test allows the service technician to examine and clear the fault log.
The control shall display the most recent error in the fault logupon entry into the display error codes test. If there are no errors in the fault log, the no error code “E00”shall be displayed on the 7-segment display.
The control shall clear the displayed error from the fault log if the start key is pressed during the display error codes test. After clearing thedisplayed error from the fault log, the appliance shall display the next most recent error from the fault log.
After clearing all errors from the fault log, the control shall display the no error “E00”code on the 7-segment display.
The control shall log the last 8 error codes in the non-volatile memory stored in a circular list.
The control shall avoid logging multiple instances of the same error code. now unplug the appliance for about 30 seconds and replug and everything should be fine