If the temperature in the incubator is not now at or near 36-37C, then the incubator is probably not working correctly.
LS = the lowest acceptable setting temperature. Set to -10 for now.
HS = the highest acceptable setting temperature. Set to +10 for now.
The SET +/- will adjust within these ranges.
AL = low temp alarm. Set just below the LS, -2 would be a good number. Leave it below room temperature until you get it working right.
AH = high temp alarm. Set it just above the HS, +2 would be a good number.
CA has a range of -5 to +5. All it does is match the built in thermometer to a trusted thermometer. It does not "set" a temperature, it only sets the display. I've not had one that needed to be set beyond 1.7 for calibration, and usually much closer to 0.
Don't change HU or HD, those are factory set and I have no idea what the recommended settings would be.
Everything can be fine tuned later.