Did my own "Breaking Bad" routine ....and then eventually had my buddy Nathan help me out. A regular customer of mine called to say her bathroom fan had stopped working....only been about 13 years since installation. I didn't fit it either - the only room in her house that she farmed out to a specialist one-stop Bathroom shop - 5 guys all yahooing and laughing the whole time....and I had to repair their mistakes afterwards. The electrician used the wrong driver for an LED fitting, and he couldn't figure out how to wire the 4-gang switch either.
Anyhoo, turns out the exterior grille was missing also ...that was a clue. So, with my son's help, I managed to squeeze into the ceiling to investigate. Found that birds had removed the exterior grill and managed to lay a 3m (10 feet) trail of nesting materials inside the duct - and had got straw and popsicle sticks jamming the fan. I removed the ducting and cleaned out the fab - called out to my son to switch it on, and it blew the remaining rubbish out - worked fine.
Carefully handed the full ducting down the manhole and squeezed my way out.
In the meantime, Nathan had arrived, so I got up on my stepladders and replaced the grill with steel wire rodent guard and siliconed it all up to keep birds out. Since I had such a hard time squeezed in the wardrobe access hole, Nathan dressed up and went back in for me to replace the ducting. I had been up easily when the place was renovated, but now the hole was barely two-thirds its original size due to the fixed shelving....and I'm a little rounder than I used to be.
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