While doing prelim for installation of EMS-HW/50C I found the "automatic transfer sw" but also a "manual Transfer sw" under the bed.
Searching the diagrams I have for '93 U300 I find no information on a manual transfer sw.
will insert picture addition later this evening.
Looking for info on this arrangement
It must have been an add-on, I have build # 4466 '94 U300 & only an automatic switch in the compartment at the foot of the bed....
About 9:30 CDT both coasts and most points in between, north to Goose Bay Labrador, south to Lima Peru reported a loud sound not unlike a sonic boom. but short in duration
DON'T PANIC.
It was just my head popping out of a very dark stinky place
The Manual transfer SW is for the inverter/shore power going to Icemaker and Microwave.
Next time put on your Hard Hat!!! :)) :)) :))