really, whats the worst thing that could happen..comp will trip overload or the breaker...worse case your comp will plow the internall relief or if its a bigger system blow the relief and there goes a few hundred lbs.....doubt its gonna hurt anyone not like jumpin a limit on a gas fired appliance
still not reccomended by me, but i doubt its gonna hurt anyone
maybe not physically hurt someone, but if a service provider jump out a safety and my unit blew up. That vendor would buy my a new unit. regardless of the age of the unit, the hurt comes from not having a job or a bad rep.
My advice, record everything, do it right and inform the customer, if you cant fix it before you leave lock it out or pull the fuses