Where is the defrost timer on this model? Its not with the thermostat.
It’s behind the control panel, a plastic white thing AP2980817
I have a thermostat with a dial no control panel I pulled it out and there was no def. timer with it
The unit looks like it has a kick plate, remove it it may be behind the kick plate.
If not pull the unit forward, remove the lower rear cover (if it has one) odds are it is in there.