Alarm Noise Behind Inverter Panel

[Rusty Bear]

I received a call from Frank Morrell who is on the road and is getting an alarm when his convection oven is on for a while. After he turns off the convection the noise quits after about 10 minutes. He has a freedom inverter in his 2002 Alpine and a house refrigerator. Does any body have any idea where the alarm is coming from and what it is?

Jim & Viv

[RVDude]

Sounds like a low input voltage alarm - but you didn't specify the model of the inverter. So this is just a guess. Without the exact make/model we don't know what features the inverter has.

Further on my hunch. The oven draws a heavy load causing the battery voltage to drop and apparently triggering a low input voltage alarm. After the oven is turned off the battery recovers after a short while enough to silence the alarm. The might be a bad connection in the inverter-battery circuit or (most likely) your batteries are getting toward the end of their life and can't maintain enough voltage while under a heavy demand.

I am assuming you mean the Freedom series of inverters by Xantrex. The (click this) Xantrex web site has documentation (owner's manuals) you can check.

[takepride]

The problem is exactly as RV Dude describes. It happens on my RS-3000 when I run the convection oven for more than a quicky. The draw is substantial and the low voltage alarm is triggered. The oven is a power-hog.

If I need to cook something a while and am boondocking, I have to run the genset for a few minutes. A necessary evil.

An answer would be to add even more battery capacity. I have 660 Ah on six 6-volt AGMs. This may be an excuse to upgrade the battery compartment and count like Jeff S did: