Over the course of 5 or so days, noticed both fresh and freeze getting warmer. Did a good clean on the coils on the bottom. They were in need, but not very bad. (seen much worse and still functioning). Still won’t cool enough. Thought perhaps defrost timer. Learned this unit doesn’t have one (that’s seperate). It’s in the program/control board. Checked evap fan - working. Checked defrost heater - continuity. Checked defrost thermostat. Thought it wasn’t working at first, but later proved it to be functioning. (I have a spare now). So was told it had to be the board. Purchased a new one, installed, and it displays PE 000. Which I’ve learned is the program mode. But when I attempt to do so, I get no response from any of the buttons. I put the old one back in, and was able to change settings, etc. Put new one back in, still nothing.
Am I doing something wrong, or did I get a dud new board??
Thanks in advance for any help!