V2 neo/ pro help

Creality Ender Series Creality Ender-3 Max & Pro & Neo
1

I have a ender 3 v2 neo, it kept loosing temp. I did pid tuning via pronterface and it failed to reach the set 220c. I replaced the thermistor and no change, so figuring I needed a new heating element I decided to transfer the crtouch to my ender 3 pro since I planned on ordering one for it anyway, and since the neo is down figured why not. The pro board didn’t have a spot for the crtouch so I transferred boards as well, again since both are gonna get a skr I figured why not. so I get it all working and did pid tune, everything worked good, set temp at 220c and again it fails, so I’m thinking its the board.

Any ideas?

2

update. reset to defaults and did the built in pid tune, worked great. tested it by manually setting temp at 220. reached temp like it should.

went to start a print and it stays about 10c low and pauses print

3

just redid autotune and temps worked perfect

4

so narrowed it down, did auto tune. start a print. prints great. shut off printer and turn back on heating fails. its not storing the autotune setting even after i tell it to.