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Arc faults can trip easily. "Updated the electrical" is a broad term. It is hard to judge if this is substandard work without knowing the scope of work or if permits were obtained. Did they have permits and inspections? If the work was permitted and completed poorly, you may have some other options of how to proceed if the electrician remains unresponsive.
You definitely want to make sure the person is licensed and that they obtain the proper permits for this. Most "discount" electric panel change-outs are not done well or properly. Proper licensing and permitting will protect you. Try to be home when the inspector comes or contact your municipality directly to verify the inspection was done. Do this BEFORE paying in full.
I'm actually not seeing a wire sticking out of the wall to connect to (in either picture). There should be a wire sticking out somewhere, unless they also clipped that off, or stuffed it behind the window. Also, did they leave behind the other half of the sensor? As others said, wireless may be an option if all else fails in your scenario.
Definitely use the LED bulbs but be sure that they are dimmable. The light output is much, much better than any other type of bulb. I know that they are more expensive but the CFL-type bulbs burn out much too quickly.
Most likely it is a GFCI outlet which esssentially means the circut has been blown at the outlet. This usually happens if a drop of water or a hard bump occured within the circuit. If this is the case then there should be a"reset" button that you can push and the light should stop blinking and the outlet will work again. If there is no "reset" button or you aren't sure what to do then call a licensed electrician.
If it's solid red it might be indicating a tripped GFCI, if it's flashing it might be defective. When I say might it's because not all GFCI-s have the same type of light or color. Some are lit when on, some when tripped. I hope this helps
That sounds like it is a GFCI outlet, which simply put means your outlet has it's own breaker. Most codes now require outside electrical outlets to be GFCI for safety reasons. If it is flashing red it probably means the test button has been tripped by a finger or the breaker within the GFCI has been tripped from an electrical surge. If it has been tripped then it shouldn't have any power to it. Most have a reset button, press it and you should have power again. It it continues to trip, call a licensed electrician.
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