I have a 5ton water source Heat Pump, with a bad burnout. Third burnout. It's above the ceiling, and with the way its built there's no way to get the reversing valve out. Don't even know how I'm going to do the compressor, other than its been done before. Has anyone ever Rx11 flushed thru the reversing valve? I've used Rx11 before, but took the dryers and expansion valves out to flush. PS this unit has no dryer and no place to put one.