waaaa. Mine went out 2 days ago.
Blown circuit board. Won't be fixed until Wednesday.
Condenser and blower fan and thermostat were on different pages.
Only have 1, 5 ton unit for a 2 story 2450 SF house.
In most units that sit outside a house or an apartment there is a breaker box that is associated with the unit. When a servicemen comes to work on it he pulls the breaker to allow him to work on the unit soo it wont click on. What I am saying is your friend could go and pull the breaker out of the box and take it with him if it is this type of unit you are talking about.