Replacing a string inverter

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JOE90
Posts: 1
Joined: Tue Oct 15, 2024 8:51 pm

Replacing a string inverter

#1

Post by JOE90 »

Hello.
I wonder if anyone has experience of replacing dead string inverters. Mine is a 4kw Sunpower inverter installed 11 years ago on the outside wall of my house. We have a feed in tariff fro EDF that I don't want to lose.
It has stopped working. Maybe a lightening strike. The error code is E031 which I think means it's kaput.

How easy are they to replace? I'm OK at DIY . I only need a string inverter.

Thanks for your help

Welcome to the forum Joe, you'll be looking for an mcs registered installer to preserve your fit integrity? Have you made any local calls?
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Joeboy
Posts: 7914
Joined: Mon May 31, 2021 4:22 pm
Location: Inverurie

Re: Replacing a string inverter

#2

Post by Joeboy »

JOE90 wrote: Wed Oct 16, 2024 6:19 pm Hello.
I wonder if anyone has experience of replacing dead string inverters. Mine is a 4kw Sunpower inverter installed 11 years ago on the outside wall of my house. We have a feed in tariff fro EDF that I don't want to lose.
It has stopped working. Maybe a lightening strike. The error code is E031 which I think means it's kaput.

How easy are they to replace? I'm OK at DIY . I only need a string inverter.

Thanks for your help

Welcome to the forum Joe, you'll be looking for an mcs registered installer to preserve your fit integrity? Have you made any local calls?
Welcome to the forum Joe, you'll be looking for an mcs registered installer to preserve your fit integrity? Have you made any local calls?
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
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Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
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Low energy bulbs
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Fueltheburn
Posts: 58
Joined: Fri Sep 08, 2023 12:14 pm

Re: Replacing a string inverter

#3

Post by Fueltheburn »

This topic crosses over with the other one we were having about the OFGEM regs released on September 7th this year.

My interpretation of those regs is it comes under the repair category.
Repair with the same output inverter i.e 4kv and your FIT remains unaffected. No need for MCS installer.

My inverter was replaced from the original inverter which popped and a more efficient one went in (just because). It has not affected my FIT.
3kW FIT Solar
0.8kW balcony solar.
2,372 W of turbine at Whitelaw Brae
6kw Panasonic air to air heat pump for downstairs.
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Joeboy
Posts: 7914
Joined: Mon May 31, 2021 4:22 pm
Location: Inverurie

Re: Replacing a string inverter

#4

Post by Joeboy »

:xl:
Fueltheburn wrote: Thu Oct 17, 2024 7:45 am This topic crosses over with the other one we were having about the OFGEM regs released on September 7th this year.

My interpretation of those regs is it comes under the repair category.
Repair with the same output inverter i.e 4kv and your FIT remains unaffected. No need for MCS installer.

My inverter was replaced from the original inverter which popped and a more efficient one went in (just because). It has not affected my FIT.
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
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