Forum Discussion
mkirsch
Oct 20, 2014Nomad II
bobndot wrote:
I have a 150w PSW that plugs into an OEM 12 v outlet (not hard-wired) .
When I plug my 110 tv into it , everything is fine until I run the water pump or furnace . The PSW inverter will let out a very loud squeal. I think it is a low voltage alarm. It does this on my house battery system (2-12v. grp 31's) which reads full...12.7v.
That's exactly what it is.
When the pump or furnace motor kicks in it draws a lot of Amps starting up, which causes the battery voltage to drop like a stone for a mere moment.
The inverter is quick enough to detect it, but you are not. By the time you look at the meter, the motor is running and the voltage has risen back up.
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