1) Make sure propane is open at cylinder.
2) Light a stove burner and let it run for a while to get the gas flowing.
The small flame is all there is. It's not a pilot light.
See if it come on after propane is flowing.
If not, check for ignition noise as described above.
No ignition noise---check that battery disconnect is not on by trying the inside lights. Fridge control panel needs 12 V DC to run on propane.
If inside lights come on, check the battery voltage. It needs to be 12.7 or so.
If you hear ignition noise, but no lighting of the flame occurs, clean the burner tube and orifice carefully as described elsewhere on this site.
Repeat lighting sequence.
Allow 24 hours for fridge to cool down.
Single empty-nester in Middle TN, sometimes with a friend or grandchild on board