I have a 2002 Jeep Grand Cherokee dual climate control I just replace the blend doors housing and the doors, about 6 months ago. Had to take the dash apart to get to it now it's acting funny again and I don't have heat on one side could the actuators going bad I didn't replace those when I was in the heater unit.

Codes 14 54 56. I get from the climate control unit when I do the self diagnostic

yes, you should have changed them doing all that work.