I recently went to a job and found 2 seperate condensers short of gas, I also found the condensers blocked with dust and flour as they were in a bakery the gas was R404a, I leak testedthe system and found no leaks in the system so weighed in my gas a they ran perfectly, I was wondering due to the blocked condensers I know this might be stupid but would the gas boil off and is that why there is a shortage of gas as there was def no leaks in the system.