Furnace concern after 5 inches basement flood
Hi:
During a heavy rain event a few days ago, I had water backup through my basement flood drain up to 5 inches which I had rent a sump pump to get rid of the water. It rained throughout the night but I only realized basement water when I woke up in the morning.
My freezer, cloth dryer, and computer all stopped working. My A/C was on through the night but I turned it off when I woke up and haven't turn it back on since. I threw away the air filter and replaced it with a new one. The basement is now fully dried (relative humidity about 50 as indicated by my LG 65 pint dehumidifier).
My concern is whether I can operate the A/C again as normal. I called my A/C Heating installer and they said 5" wouldn't affect the electrical so I can use it as normal. But they did try to sell me a Maintenance check, one-time only for furnace at $100. I am not sure I should shell out the cash since I recently realized I may not have basement drain backup endorsement in my homeowner policy and thus budgeting is necessary.
Thank you all for your help.