For those of you who lay sleepless last night in worry over my a/c, it is fixed! And cheaply fixed!
Now, to stem the mouse invasion. Five were dispatched in the last two nights and I found their ingress to the house
Thank you for sharing your experiences with us. It helps me remember how fantastically tiny my problems are.
Well done. My loft always seems to be very attractive, I have had mice several times, rats three, two bad wasp years in the last twenty or so, with several nests each time, and a swarm of bees, which died and left a heap of their dead behind.
In one way however I have been lucky because I have never had bats. In the UK you just have to hope, that you do not get bats, because you are not allowed by law to evict them, or even block their entrance.
It's always nice to get a cheap fix on an expensive appliance, and an honest HVAC person is a real gem. I hope the mouse situation is permanently gone as well.
@Gwendolyn2018 That's a lucky find!