Panasonic fridge reset, is it really just an unplug cycle?

[Thomas Martinez]

Saw a few posts about resetting Panasonic fridge. The procedure seem to be quite simple, unplug from the wall, press any button on the fridge control panel to drain the residual voltage from the control board, then plug the fridge back into the wall outlet. It’s that simple.
Does the pressing of the button on the refrigerator control panel actualy do anything? Or is this just a way to make sure that the caps is discharged prior to plugging the fridge back in? I suppose if someone just repeatedly performed the unplug and replug steps, it would eventually work out due to the fact that eventually the control board would naturaly discharge (after a few minutes?) Does a person have to manually discharge the control board by press a button on the fridge’s control panel? Is this specific to Panasonic? Is this “folklore” being passed from refrigerator technician to refrigerator technician?
How long should a Panasonic fridge be left unplugged from the power outlet? The directions dont specify exactly how long the fridge should be unplugged. I would imagine that leaving it unplugged for at least 30 seconds would allow the control board to fully discharge. However, would 10 second or 30 second be enough for the newer models with the inverter technology to fully clear? Have any of you performed this process on a Panasonic refrigerator? Did you have to use the button press on the refrigerator control panel to clear the error code?

 

[Star]

the button press step is just discharging the residual voltage from the caps in the control board so that it sees a true start from cold. If you unplug and wait long enough (5+ mins) the caps will discharge naturaly and the control board will start just the same.

 

[Iro]

Done a few dozen times on customer units. Usually unplug for 2-3 minutes and press the alarm/temp button on the panel and then re-plug. Button press have never been an issue in resetting the fridge but the 2-3 minute wait is critical on the newer models with inverter technology.

 

[Claustrophobic Animal]

wait so does this actually clear the error codes or just power cycle it? those are two different things.

 

[Attractive A]

folklore. Unplug it and plug it back in after 5 minutes.

 

[Claustrophobic Animal]

Done a few dozen times on customer units. Usually unplug for 2-3 minutes and press the alarm/temp button on the panel and then re-plug. Button press have never been an issue in resetting the fridge but the 2-3 minute wait is critical on the newer models with inverter technology.

In response to the above, I would think that if it was a true reset, the fridge would also clear the temperature setpoints (as they are in the eeprom). Is that not true? How does Panasonic separate eeprom stored settings from the volatile data stored in the control board?