Kenmore Elite 795.72053.110 F dH after compressor replacement

[xman11]

I have a Kenmore French door / bottom freezer - Model 795.72053.110 purchased in Sep 2011.  It stopped cooling a month ago so I called Sears for service.  The Sears technician (from A&E Factory Service) came out and replaced the compressor, compressor filter dryer, and added a compressor service valve.  As part of the repair, the technician also did a "software upgrade" on the logic board.  I just had to pay a $129 visit fee. 

The refrigerator is cooling now, able to freeze water bottles in the freezer too.  However, a few days after the repair, the fridge showed F dH error on the display.  I unplugged it for a few minutes and plugged it back in.  The error went away but returned the next day.  I tried this a few more times but the error code kept reappearing.

I did some research online and saw it's either the freezer thermistor, freezer fan, defrost heater element or logic board.  Before I try to diagnose this further, I called Sears back and told them what happened.  They will be sending out another technician in a few weeks.

The strange thing is that in the 8 years I owned the fridge, F dH never appeared.  I'm wondering if this error could have been caused by the technician damaging the fridge during the repair, or perhaps caused by the "software upgrade".  It could also be coincidence that the defrosting components happened to fail after the repair.  Btw, the freezer is empty -- no food/items in there.  I wanted to make sure the freezer works without issues before putting in food.

If anyone has thoughts on this, please do share.

Thanks in advance.

--Eric

[Vance R]

The software upgrade is to install the new universal compressor from LG.  Did the service person remove the freezer evaporator cover?  If they did remove cover some maybe left something unplugged.  If they did not remove cover,  then in the course of replacing the compressor nothing is done to that circuit. 

Please put something in the freezer - a couple gallon jug of water will do.  Without something to keep the cold the temps will swing wildly especial during defrost cycle.

[xman11]

Thanks Vance.  Will do.

Btw, the technician came out today.  He said the defrost controller assembly was faulty (ohm reading was off).  Replaced it and said it should now be fixed.

I'll keep an eye on it to see what happens over the next few days.