Climate system issues

[GrandCanyonx5]

Our X5 is located at the Grand Canyon and experiences wild temperature fluctuations so the climate system is crucial. The blower seized up and I was able to get it out and with a bit of lube got it spinning again and now works fine except now I only have ac on the drivers side and just blowing air on the passenger and absolutely no heat on either side. 20 degrees at night and 80 degrees during the day requires both, plus when we take it to Vegas it can't keep up. The back seat mimics the front same issue left right still no heat. The climate presets all work doesn't matter where I set the flow blue or red doesn't matter. I hear the servos changing when I change the setting so I'm not sure where I've gone wrong. Prior to removing the blower there was no issue with temperature.