Lippert sent me a letter Saturday to inspect the brakes on my Columbus it said something about grease getting on the brake pads and rotors. Maybe yours has the same issue. My brakes are working fine on my rig but it is only 2 months old now. I'm going to inspect mine for any grease issues anyway. Just a thought for you to check.
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