FX3048 Replaced CTRL board, still no operation

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Clem Jonze
Forum Member
Posts: 20
Joined: Sun Apr 05, 2015 12:32 pm
My RE system: 12 - 300 Watt ReneSola Panels. 48 Volts - Connected 4 strings of 3 @ 120 Volts each string. Midnight Solar Combiner box, 15 amp breakers - 1 each per string. FlexPower 1 3048. (FlexMax 80, Mate 3, HUB 4, Flexnet DC. Firmware version, (as of 05/28/2015 003.009.000. 8 - (wired in series) Deka L16 375 AH Batteries. The whole RE system lives in a "solar shed" located in the back yard, panels facing South - South West. 4 to 5 hours of full sun per day. Sub panel with 50A breaker that runs to House Main Panel. (ground bond removed from Flex Power 1 - Ground Bond @ Home Main Panel) No 240 V requirements - all 110 Volt.
Location: Hilo, Hawaii

FX3048 Replaced CTRL board, still no operation

Post by Clem Jonze » Sat Nov 02, 2019 5:32 pm

Aloha from Puna on the Big Island.
A month ago, my Flex1 FX3048T inverter failed. Because it's still under warranty, Glenn at Outback sent me a new CTRL Board. I installed it this morning. Very easy. Removing the Flex 1 from the wall and wiring was harder than replacing the board. Forgot how heavy these rascals are.
With the new CTRL board, same issue. 51.1 Volts IN - 0 out. No lights, fans, nada. All input voltages checked and confirmed good. All breakers good.
Anyone else have this problem and find a solution?
No errors on the MATE when the inverter failed.
Charge controller, Mate, etc all work fine.
Living on a generator is no fun. I'm shopping now for a backup inverter. The joys of living on an island fortress in the Pacific. No solar stores open on the weekends.

sparksalot
Forum Guru
Posts: 310
Joined: Sun Jul 17, 2016 5:31 am
My RE system: FLEXpower TWO VFXR3648A Grid-Tied and Battery Backup Hybrid, Mate3s
Using Two Midnite 200 Classic Charge Controllers

Traction battery FLA 48 volt 805Ahr.

32 SolarWorld 245w mono, 2x-4S-4P
6 REC 320w on micro-inverters

Re: FX3048 Replaced CTRL board, still no operation

Post by sparksalot » Sat Nov 02, 2019 7:49 pm

0 volts out is from the AC board, not that the Control board doesn't have anything to do with that, but it is next to try.

AC board has the big output relay and one ribbon cable to Control board.

Clem Jonze
Forum Member
Posts: 20
Joined: Sun Apr 05, 2015 12:32 pm
My RE system: 12 - 300 Watt ReneSola Panels. 48 Volts - Connected 4 strings of 3 @ 120 Volts each string. Midnight Solar Combiner box, 15 amp breakers - 1 each per string. FlexPower 1 3048. (FlexMax 80, Mate 3, HUB 4, Flexnet DC. Firmware version, (as of 05/28/2015 003.009.000. 8 - (wired in series) Deka L16 375 AH Batteries. The whole RE system lives in a "solar shed" located in the back yard, panels facing South - South West. 4 to 5 hours of full sun per day. Sub panel with 50A breaker that runs to House Main Panel. (ground bond removed from Flex Power 1 - Ground Bond @ Home Main Panel) No 240 V requirements - all 110 Volt.
Location: Hilo, Hawaii

Re: FX3048 Replaced CTRL board, still no operation

Post by Clem Jonze » Sat Nov 02, 2019 10:05 pm

Thanks for the reply. I was wondering why they decided to send the CTRL board - and how they determined it was bad based on all the photos and data I sent! I've got to get a backup inverter. This is silly.

Clem Jonze
Forum Member
Posts: 20
Joined: Sun Apr 05, 2015 12:32 pm
My RE system: 12 - 300 Watt ReneSola Panels. 48 Volts - Connected 4 strings of 3 @ 120 Volts each string. Midnight Solar Combiner box, 15 amp breakers - 1 each per string. FlexPower 1 3048. (FlexMax 80, Mate 3, HUB 4, Flexnet DC. Firmware version, (as of 05/28/2015 003.009.000. 8 - (wired in series) Deka L16 375 AH Batteries. The whole RE system lives in a "solar shed" located in the back yard, panels facing South - South West. 4 to 5 hours of full sun per day. Sub panel with 50A breaker that runs to House Main Panel. (ground bond removed from Flex Power 1 - Ground Bond @ Home Main Panel) No 240 V requirements - all 110 Volt.
Location: Hilo, Hawaii

Re: FX3048 Replaced CTRL board, still no operation

Post by Clem Jonze » Sat Nov 02, 2019 10:07 pm

Oh, and in case anyone is wondering, these FX inverters are super easy to work on. I just wish there was a PC board trouble shooting guide. Randomly replacing boards is expensive and time consuming. Kinda wish Outback would have sent me all three boards and cables instead of this one at a time stuff.

sparksalot
Forum Guru
Posts: 310
Joined: Sun Jul 17, 2016 5:31 am
My RE system: FLEXpower TWO VFXR3648A Grid-Tied and Battery Backup Hybrid, Mate3s
Using Two Midnite 200 Classic Charge Controllers

Traction battery FLA 48 volt 805Ahr.

32 SolarWorld 245w mono, 2x-4S-4P
6 REC 320w on micro-inverters

Re: FX3048 Replaced CTRL board, still no operation

Post by sparksalot » Sat Nov 02, 2019 11:03 pm

Clem, See what you can get from this:

Clem Jonze
Forum Member
Posts: 20
Joined: Sun Apr 05, 2015 12:32 pm
My RE system: 12 - 300 Watt ReneSola Panels. 48 Volts - Connected 4 strings of 3 @ 120 Volts each string. Midnight Solar Combiner box, 15 amp breakers - 1 each per string. FlexPower 1 3048. (FlexMax 80, Mate 3, HUB 4, Flexnet DC. Firmware version, (as of 05/28/2015 003.009.000. 8 - (wired in series) Deka L16 375 AH Batteries. The whole RE system lives in a "solar shed" located in the back yard, panels facing South - South West. 4 to 5 hours of full sun per day. Sub panel with 50A breaker that runs to House Main Panel. (ground bond removed from Flex Power 1 - Ground Bond @ Home Main Panel) No 240 V requirements - all 110 Volt.
Location: Hilo, Hawaii

Re: FX3048 Replaced CTRL board, still no operation

Post by Clem Jonze » Sun Nov 03, 2019 9:55 am

Thanks Sparksalot! Great instructions. Written by humans, for humans. This issue is frustrating and going on for a month now.
Living off grid and taking charge and responsibility for your life, (the gardens, bees, water catchment, etc), only to be foiled by some random technology I cannot test or repair myself on site. Yes, replacing inverter boards is straightforward and easy, but not being able to determine EXACTLY which board failed or why has me feeling vulnerable. Almost like being connected to the grid again, waiting for some random tree to fall on a line somewhere and take the power out for a month.
Rant over.

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