Our dog, Kendra, kept whining and digging near the HVAC vent, but that area of the vent cover is broken so I assumed she must have dropped something down into the ductwork… I use the flashlight to look down into the ductwork although I could not see anything; But then, when our daughter turned on the heating system it made a unquestionably loud noise and I knew it was time that the two of us call the professionals. Thankfully the HVAC professionals were able to come right out and they did a thorough vent cleaning and they found the issue. It had been Kendra’s chew toy that had been rattling in the ductwork and making such a racket. They also found a bunch of other junk that had fallen into our ductwork while doing the ductwork cleaning. The amount of dirt that they vacuumed out was disgusting. Thankfully there was no destruction to the heating system or our HVAC system. The professionals were also able to replace our broken vent cover and now or heating system works without any abnormal noises, and kendra is ecstatic too because she has her toy back. the HVAC workers were unquestionably surprised at how well our HVAC system runs even though we’ve never had it inspected and we’ve been residing in this new home for nearly a decade. They said it was a superb thing that the Kendra dropped her toy down the ductwork because our system would not have gone on much longer without a cleaning. I had no plan this was required to keep an HVAC system working well, from now on the two of us will be sure to have it inspected at least twice a year.