it sounds annoying, but it's doing its job - versus the inverter overheating and failing.
some of us will put a piece of ice on the 'thermo' button to shut it off, especially if sitting outside near it trying to enjoy some quiet...
'14 Palazzo 33.3 bunkhouse 34' diesel
KingTailgater2 Dish HD, 100w/5a SOLAR, BlueOx
100,000+mi since '14 - US, Alaska, Canada - Hiawassee, GA! (also, '14 Gulfstream Amerilite and '07 ForestRiver Rockwood) : )