Forum Discussion
MrWizard
Jul 04, 2018Moderator
wopachop wrote:
Got to the trailer and started the genny its been over a month.
Then plugged into shore power with an amp reader because i was curious if it would switch over.
Started the A/C and let it run for awhile.
Then turned off the genny with both A/Cs cranked full blast.
Only hooked up to 15amp.
Ran and killed the front bedroom manual hand dial.
Then turned the main room thermostat to off.
What damage can that cause to the electrical switch and the air conditioner?
amp reader do you mean a KILL-A-Watt meter or something similar for 15amp circuits ?
in most RV's generator takes priority
plugging into shore power did Nothing until you turned off the generator
depending on how fast you ran and turned them off
you might have still been on genny connection
the genny voltage has to drop below a set point before the TS will drop out and switch to shore power
I think somewhere below 90v
as the genny winds down the voltage drops, the TS disconnects and goes to shore mode when the voltage is to low to hold the relay closed
this winding down, causes a feedback from A/C compressors fan motors
called 'back EMF' this can damage the generator
this why you don't shut down with heavy loads running,
even when shore power is NOT in play
turn off A/C before stopping the generator
make sure A/C is in the off position before starting the generator
or plugging in the shore cord, this prevents genny damage or arcing the shore cord blades
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