I have a frigoboat capri 50f compressor and a 200 f evaporator, air cooled, smart controller, 6 years old, ran perfect for 4 years then I got a blockage in evaporator 1 year ago, replaced the evaporator, now I have another blockage, something is not right, should not be happening again, is there anyone else out there that is having to replace evaporators? Should I install filter dryer in front of cap tube coming off of compressor and then install new evaporator, since these are all quick connect will i need to vacuum and recharge or am I safe to just reconnect because they are all precharged