We have put some serious miles on our AI, but after returning from Texas decided to winterize since we have no planned trips until March. This was an adventure to say the least. The owner's manual was not always clear and sometimes conflicted with Airstream online instructions and videos.
We did manage and only came to a halt when the macerator pump blew a fuse. We found some help here on trying to free the pump blades by rotating them using a screw driver. Similar to clearing your garbage disposal by manually cranking. Anyway, we would get it freed up and put in a fuse only to have it seize up again and blow another fuse. My brave husband got under the AI and disconnected the line (Yuck! Thankfully we were at the flush out stage) and discovered a clump of "hair" as he described it. Since we have not taken showers or used the AI for very long I can only speculate this was left from the previous owners. Luckily that did the trick and we had lots of 20 amp fuses. Before you ask, we only use the RV toilet paper and no kids to blame for putting something down the toilet.
She is put to bed in our garage and feel the next time we winterize it will go much faster. Learning curves can be difficult. At least my husband and I did great team work and are not headed to divorce court.
Happy New Year to All. We are looking forward to 2021!