100W freezer causes overload fault

[jwcole04]

My system: 4 100W panels, Litime 30A MPPT charge controller, Eco-worthy 12V 600W inverter, Lifep04 lithium-ion battery.

I've been testing it with a small heater and lamp running at about 400W. It runs for hours with no problems, and with the stretch of sunny weather we've had in Seattle, if the battery drops below 100%, it is quickly recharged. The whole deal works great.

I'm really interested in running a fridge (runs from 70 to 170W) and a small freezer (runs from 0 to 136W) in the event of an extended power outage, so I tested that. After a few minutes the inverter started beeping and showed and overload fault code 11. I tested just the freezer and it is the culprit.

Does anyone know possible reasons why one device would cause this?

 

[seneysolar]

Startup current is much higher than running

 

[mikefitz]

Eco-worthy 12V 600W inverter

Poor overload performance of the system. Could be battery current limit, volt drop in circuit between battery and inverter, inverter is power limited.
Fault code 11 is 'inverter overload'.
When a fridge compressor starts it can take 5 or 6 times the running surrent for a few seconds.
You will need an inverter with a higher power output, idealy a unit with a high surge output.

 

[MattMan119]

My system: 4 100W panels, Litime 30A MPPT charge controller, Eco-worthy 12V 600W inverter, Lifep04 lithium-ion battery.

I've been testing it with a small heater and lamp running at about 400W. It runs for hours with no problems, and with the stretch of sunny weather we've had in Seattle, if the battery drops below 100%, it is quickly recharged. The whole deal works great.

I'm really interested in running a fridge (runs from 70 to 170W) and a small freezer (runs from 0 to 136W) in the event of an extended power outage, so I tested that. After a few minutes the inverter started beeping and showed and overload fault code 11. I tested just the freezer and it is the culprit.

Does anyone know possible reasons why one device would cause this?

Yeah I got a freezer that runs at 93w that has a startup pull of 1123w and another 63w fringe that will surge 903w … then freezer and fridge units are easy to run… but they are hard to kick start…

I hear a soft start can help, but I have not tried anything with them… I just moved to a 2000w inverter …

 

[robbob2112]

The other possible issue is the defrost circuit on the freezer... if the fridge is 100w that will be more like 500w


Post the model number of the fridge for a better answer than this... you either need a 2500w HF inverter or a 600w (or larger) LF inverter like the victron phoenix.