New Roockwood tt 8329ss

Pulled our new trailer 281miles to lake almanor in north eastern California with our 2006 dodge 2500 cummins. All went well. We will be lake side for 5 months. Setup went fine. This is the first time for me. All the info came from you members thank you. One thing I don't know if this is normal. The dometic refridgerator makes a loud buzzing noise during the day trying to cool down. In the afternoon when it is at 37 degrees it runs quiet. Is this normal? Caught a four pound landlocked king salmon today. Wow what a fight. Thanks for your help.