There is a delay for the relay to engage and then another delay for the A/C to kick in. Try it again and wait a bit and could take 5 minutes for A/C to kick on.
If it doesn't engage your transfer switch is probably sticking. Smack the side of it.
2014 Palomino Columbus 3650TH
435AH 12V VMax Charge Tanks, 520 watt Monocrystilline Solar Array, Morningstar MPPT TS-60 CC,Morningstar Remote,Cotek True Sine Wave Inverter,Cotek Remote Controller,50amp Progressive Hardwire Surge Protector
2015 Dodge 3500 6.7L 4X4
2011 CanAm Commander XT 1000