reported usage suddenly double

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petertearai
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Posts: 403
Joined: Fri Aug 06, 2010 4:35 pm
My RE system: 2220 watt pv, fm80, outback fxr 2000 watt inverter. Shoto 12 times 2 volt exc400 lead carbon batterys 24 volt system victron battery moniter. optics RE
Location: NewZealand North Island

reported usage suddenly double

Post by petertearai »

Hi my off grid site suddenly reports double the usage , no one there. 2 fridge freezers and modem the only drain on system
So maybe one fridge freezer has gone into permanent defrost . or optics is reporting incorrectly ?
3 hour drive to go and personally look !
2220 pv. fm80. 12 times 2 volt exc shoto lead carbon 450 AH 24 volts. victron battery monitor. outback fxr 2000 watt inverter
raysun
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Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01 - Parallel Stacked, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
2 Midnite Solar MNPV6 combiners w/20A DC disconnects.
Honda EU7000is gas fuel generator
Off-Grid

Re: reported usage suddenly double

Post by raysun »

How much in absolute consumption is double the usage?
I assume the Victron can only be read locally, so no way to know actual battery discharge, or cross-check the numbers reported by Optics.
Not aware of any Optics issues at the moment, so would suspect numbers from the inverter being legit.
Any entries in the event log?
Any neighbors with long extension cords?
petertearai
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Posts: 403
Joined: Fri Aug 06, 2010 4:35 pm
My RE system: 2220 watt pv, fm80, outback fxr 2000 watt inverter. Shoto 12 times 2 volt exc400 lead carbon batterys 24 volt system victron battery moniter. optics RE
Location: NewZealand North Island

Re: reported usage suddenly double

Post by petertearai »

thanks , no events , and long extension cords! generally usage is reported on optics as .7 to .9 kw per day , so far today 2kw and 4 hours of the day to go . Yes your right the Victron is not able to tell me anything while I'm not there. I think i will need to plug in a power meter into each fridge and see what they report over a week or so . They are identical models albeit about 2 years different in age .
One 2 years old and the other 4 years or so .LG inverter fridge freezers.
Thanks' for your reply
2220 pv. fm80. 12 times 2 volt exc shoto lead carbon 450 AH 24 volts. victron battery monitor. outback fxr 2000 watt inverter
ralphday224
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Re: reported usage suddenly double

Post by ralphday224 »

Squatters?
pss
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Joined: Mon Jul 24, 2017 8:40 am
My RE system: 8330 watts in three strings, Flexmax 60 x 3, Radian 8048A, GSLC load center, Mate 3S, Hub 10.3, FN-DC and 900 Amp, 48V Trojan T105-RE battery bank.

Re: reported usage suddenly double

Post by pss »

The obvious answer is you need a cellular capable video camera (widely available if cell service in your area) to take a looksy at things. But yes, either a fridge compressor or defroster problem or intruder (terrestrial or not?).

It is possible for defrosters to ice up and then run all the time because the internal temperature of the unit never gets warm enough to shut off the defroster element. They can ice up if the fan that blows the air inside the unit to circulate it is broken or the defroster water drain line gets clogged by food debris or packaging materials.

Repairing fridges and dryers, ovens, microwaves, etc is something everyone with an Outback system should also know how to do. Its the same kind of skill set thinking and parts wise.
raysun
Forum Emperor
Posts: 8271
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01 - Parallel Stacked, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
2 Midnite Solar MNPV6 combiners w/20A DC disconnects.
Honda EU7000is gas fuel generator
Off-Grid

Re: reported usage suddenly double

Post by raysun »

Repairing fridges and dryers, ovens, microwaves, etc is something everyone with an Outback system should also know how to do. Its the same kind of skill set thinking and parts wise.
We had an LG refrigerator that was reliable, right up to the moment it wasn't. I learned more about refrigerator repair than I wanted to know, and in the end, it didn't help. No problem with the inverter compressor, heat exchangers, or anything else reachable. The process of elimination pointed to corroded aluminum capillary tubes buried in the insulated sidewalls. LG's resolution to the failure of poorly designed 2 cent parts? Replace the refrigerator.
pss
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Joined: Mon Jul 24, 2017 8:40 am
My RE system: 8330 watts in three strings, Flexmax 60 x 3, Radian 8048A, GSLC load center, Mate 3S, Hub 10.3, FN-DC and 900 Amp, 48V Trojan T105-RE battery bank.

Re: reported usage suddenly double

Post by pss »

Good to know. We replaced our Samsung unit which was always icing up due to clogged drain lines with an LG.

I think the best thing to have is a well insulated storage box, a commercial ice maker and a wife to load the ice and drain out the water. Of course, this too is subject to a high failure rate that may be unacceptable in more than one way.
raysun
Forum Emperor
Posts: 8271
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01 - Parallel Stacked, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
2 Midnite Solar MNPV6 combiners w/20A DC disconnects.
Honda EU7000is gas fuel generator
Off-Grid

Re: reported usage suddenly double

Post by raysun »

pss wrote: Mon Aug 01, 2022 9:16 am Good to know. We replaced our Samsung unit which was always icing up due to clogged drain lines with an LG.

I think the best thing to have is a well insulated storage box, a commercial ice maker and a wife to load the ice and drain out the water. Of course, this too is subject to a high failure rate that may be unacceptable in more than one way.
We actually replaced the LG - with another LG. They have changed the design to include (I hope) more resilient parts in the capillary system.
I try to limit drudgery and menial tasks to those entities not likely to, out of resentment, kill me in my sleep.
pss
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Posts: 1060
Joined: Mon Jul 24, 2017 8:40 am
My RE system: 8330 watts in three strings, Flexmax 60 x 3, Radian 8048A, GSLC load center, Mate 3S, Hub 10.3, FN-DC and 900 Amp, 48V Trojan T105-RE battery bank.

Re: reported usage suddenly double

Post by pss »

While dying in your sleep is certainly not an unplanned event to look forward to, the alternatives can be waking up and finding you have substantially soiled the bed which too is an awful scene. But I digress.....
petertearai
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Posts: 403
Joined: Fri Aug 06, 2010 4:35 pm
My RE system: 2220 watt pv, fm80, outback fxr 2000 watt inverter. Shoto 12 times 2 volt exc400 lead carbon batterys 24 volt system victron battery moniter. optics RE
Location: NewZealand North Island

Re: reported usage suddenly double

Post by petertearai »

Ha . That was certainly a digression . ! Funny , and probably true . Thanks everyone for your ideas.
I have asked a near neighbor to drop in and switch both off and wait a minute then turn on .
I'm hoping it will reset the defrost , if indeed that is the issue .
2220 pv. fm80. 12 times 2 volt exc shoto lead carbon 450 AH 24 volts. victron battery monitor. outback fxr 2000 watt inverter
raysun
Forum Emperor
Posts: 8271
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01 - Parallel Stacked, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
2 Midnite Solar MNPV6 combiners w/20A DC disconnects.
Honda EU7000is gas fuel generator
Off-Grid

Re: reported usage suddenly double

Post by raysun »

petertearai wrote: Mon Aug 01, 2022 12:13 pm Ha . That was certainly a digression . ! Funny , and probably true . Thanks everyone for your ideas.
I have asked a near neighbor to drop in and switch both off and wait a minute then turn on .
I'm hoping it will reset the defrost , if indeed that is the issue .
If they can, have them leave the refrigerators off long enough that you can see the decline in consumption in Optics. That will help identify if there's another load not expected.
petertearai
Forum Guru
Posts: 403
Joined: Fri Aug 06, 2010 4:35 pm
My RE system: 2220 watt pv, fm80, outback fxr 2000 watt inverter. Shoto 12 times 2 volt exc400 lead carbon batterys 24 volt system victron battery moniter. optics RE
Location: NewZealand North Island

Re: reported usage suddenly double

Post by petertearai »

Usage screenshot
Usage screenshot
Usage screen shot .
Usage screen shot .
2220 pv. fm80. 12 times 2 volt exc shoto lead carbon 450 AH 24 volts. victron battery monitor. outback fxr 2000 watt inverter
raysun
Forum Emperor
Posts: 8271
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01 - Parallel Stacked, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
2 Midnite Solar MNPV6 combiners w/20A DC disconnects.
Honda EU7000is gas fuel generator
Off-Grid

Re: reported usage suddenly double

Post by raysun »

Yes, looks like something cycling on more frequently, doesn't it?
petertearai
Forum Guru
Posts: 403
Joined: Fri Aug 06, 2010 4:35 pm
My RE system: 2220 watt pv, fm80, outback fxr 2000 watt inverter. Shoto 12 times 2 volt exc400 lead carbon batterys 24 volt system victron battery moniter. optics RE
Location: NewZealand North Island

Re: reported usage suddenly double

Post by petertearai »

Yep . I'm up there this weekend , so investigation.
Lucky for us ,days getting longer, and generally rarely get 2 days without sun .
2220 pv. fm80. 12 times 2 volt exc shoto lead carbon 450 AH 24 volts. victron battery monitor. outback fxr 2000 watt inverter
petertearai
Forum Guru
Posts: 403
Joined: Fri Aug 06, 2010 4:35 pm
My RE system: 2220 watt pv, fm80, outback fxr 2000 watt inverter. Shoto 12 times 2 volt exc400 lead carbon batterys 24 volt system victron battery moniter. optics RE
Location: NewZealand North Island

Re: reported usage suddenly double

Post by petertearai »

I turned off both fridges for a minute .
Repluged in and both on a power meter.
Now we are back to normal power usage .
Time will tell , at least now i will have both fridges monitored for total power usage , then i will know which is the culprit .
2220 pv. fm80. 12 times 2 volt exc shoto lead carbon 450 AH 24 volts. victron battery monitor. outback fxr 2000 watt inverter
pss
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Posts: 1060
Joined: Mon Jul 24, 2017 8:40 am
My RE system: 8330 watts in three strings, Flexmax 60 x 3, Radian 8048A, GSLC load center, Mate 3S, Hub 10.3, FN-DC and 900 Amp, 48V Trojan T105-RE battery bank.

Re: reported usage suddenly double

Post by pss »

Way to go Sherlock!
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