u/Hefty-Object-8298

Mitsubishi MSZ/MUZFS18NA not ramping down. Main question: should this unit be able to run steady at power less than 1500 watt. Explanation: Regardless of outside temperature (as low as 0, high as 40), runs at 1500 watt, then off. Does not change with any settings. Other small unit, FS9NA, will modulate down to 200 watt and stay steady. Is this expected behavior for the FS18?
Did get outdoor fault 11 blinks. Tech checked for open phase between compressor and power module bad, fluctuating and under 50v . Replaced outside board. Issue not resolved. Refigerate level at spec. They don't know what to check next.

Starts about 40mph, probably a bearing because it stops after 5 min, then restarts after speed change. I got this picture under the front right wheel, lots of grease thrown around. What am I looking at?