ac should be serviced yearly as well as the heater. With the ac, ya want to make sure the coils are clean of debris. I can
remember climbing on my roof and pulling the shroud off my ac and doing that. (its no different than a s & b house) Usually
done at the beginning of the season as well as the heater. Pull the outside cover off and make sure there is no debris in there
and the vents don't have spiderwebs. If its not broke, don't fix it
routine maintenance hopefully will prevent it from
getting broke, at least thats the plan.
Fridge....open the panel outside and if you ever see any yellow powder in there, turn it off! I've been told this is the freon
leak and is usually what causes those fires ya hear about on motorhomes that start in the fridge area.
I used to replace my waterfilter every 3 months, but of course that was when I was fulltiming it and when I did that I also
replace those little cone shaped screens in the water inlet connection. Those little screens are so cheap its ridiculous not
to carry a bunch in the toolbox tray.
The hot water heater ....... if yours uses an anode rod, thats good to replace too when it needs it. I remember Beth talked
about that years ago. I'll have to do some research on that to refresh my memory.