Xantrex Powersouce 1800 Overloading (Error E03)

[fzabkar]

Re: Xantrex Powersouce 1800 Overloading (Error E03)

What is the battery voltage when the 900W load is connected? Measure the voltage at the battery and at the Xantrex unit.

PowerSource 1800 Owner’s Guide:

E03

Overload shutdown while supplying backup power. The AC product(s)
connected are consuming more than PowerSource 1800’s power rating. Use products with a total power consumption within PowerSource 1800’s continuous power rating of 1440 W.


The AC products connected have a surge power that exceeds
PowerSource 1800 surge capability. Use products with a total starting surge power within PowerSource 1800’s capability of 2880 W.


One or more of the connected products are damaged. Have the damaged product serviced by a qualified technician.

[smorg]

Re: Xantrex Powersouce 1800 Overloading (Error E03)

Thanks for the tips on caps brands.
I understand that non-sine AC is hard on motors, but we're just looking for temporary backup for our home's main systems like water, heat, etc. in case of an outage.

[Behemot]

Re: Xantrex Powersouce 1800 Overloading (Error E03)

With ESR/capacitance meter.

You may get any of low-ESR caps, Chemi-Con, Rubycon, Nichicon. Panasonic is usually overpriced, NCC is among the cheaper ones.

Running any motor on non-sinewave source is just wrong.

[smorg]

Re: Xantrex Powersouce 1800 Overloading (Error E03)

Hi stj, thanks for your idea! Is this testable somehow without buying the new parts in advance?
-
Update: Have been using the unit as described to run a small 2.5 amp jigsaw, and other small electronics (charging the laptop, phone, etc.), but any larger loads cause the overload error.
Thanks for your advice, any other thoughts out there?

[stj]

Re: Xantrex Powersouce 1800 Overloading (Error E03)

could be dry caps.

i would replace all the small ones wih panasonic FR,
i wouldnt just replace the large ones because they are expensive - i would desolder and test them with an esr & capacitance meter.

[smorg]

Re: Xantrex Powersouce 1800 Overloading (Error E03)

Any thoughts, please? Thank you!

[smorg]

Hi there, thanks for the great advice in these forums. I'm hoping to find a bit of specific advice on a Noma-branded Xantrex Powersource 1800 battery backup.
It's an old unit, with maybe 10yrs service as a sump pump backup, so the batteries inside are not holding a charge anymore, but it does still supply non-sine AC power when connected with booster cables to a running automobile's red battery terminal and engine block.
It is rated 1800W continuous and 3600W peak, but it is cutting out with an overload error (E03) with even just a 900W space heater or 1/2hp water jet pump plugged in by itself.
None of the components on the circuit board seem to show any signs of physical damage or burn marks, and all eight 30amp fuses look ok.
It might possibly have received a shock when a tree in the backyard was hit by lightning while it was in the basement, unsure on that.
Here are a few pics of the setup and circuit board.
There are reports online of this Powersource unit having transformer problems.
Can these components be DIY repaired or otherwise jury rigged for a quick fix?
I only have a basic digital multimeter for testing, and am learning as I go what can be tested for what.
Thanks for any advice that will get this unit running strongly again, it'd be great if it could power the oil furnace too!