My old house once held an air conditioning unit which plugged into a 220v outlet. I wanted to be rid of the outlet so that I could paint. I asked my handyman to check the outlet to see if it's live. He said it tested dead and removed it and patched the wall. He said that it tested live at the circuit breaker, so he cut the wires there. This is to insure that no live wire lead to the old wall air conditioner. Now my HVAC doesn't go on. Should I call him to fix it, or get a licensed electrician?