No. You can actually work on them. If it runs but doesn't cool, remove the
cover and make sure it's clean under it. You can recharge the Freon, or get
an A/C guy to do it.
Bobby
>Hello all: The original Armstrong AC has finally given up the ghost (I
>think). Fan works but won't cool. If I remember correctly, these are sealed
>units so once it stops cooling, the solution is get a new one. Is this correct?