The Complete Guide To Aerosharp Inverter Error Codes

Why an Aerosharp error code is worth sorting now

If your Aerosharp is showing a message, buzzing, or has gone dark, your panels have most likely stopped earning. For as long as it stays that way, daytime power comes from the grid at full price. A Ground Fault is the one to take seriously first, because it can mean a real earth fault on the roof wiring.

Aerosharp is defunct. Most of these units went onto Australian roofs between 2009 and 2013, the range became known for failing, and no part for one can be bought today. So when the fault is inside the inverter, the answer is a replacement. A tripped switch or a DC isolator left off can still look like a dead inverter, and those are worth ruling out before anything is quoted.

A short diagnosis now lets you choose the replacement on your own terms, rather than after weeks of lost generation. The panels usually stay, and a hybrid inverter in the old one's place can take a battery now or later.

Find your code in the table below to see what it means and how urgent it is. If your home is in Adelaide, the Adelaide Hills, Gawler, the Barossa, the Fleurieu, Murray Bridge and Yorke Peninsula in South Australia, or North Brisbane, Caboolture, Bribie Island, the Sunshine Coast, Noosa and Gympie in Queensland, our own licensed electricians will go through it with you over the phone for free before anyone drives out. Check your postcode to see if we cover you.

Which Aerosharp inverter do you have?

The model is on the label on the side of the unit. The only Aerosharp manual we know of covers the HR-INV-X01 series, and it survives only as a scanned copy.

HR-INV-X01 series: the series named in that scanned manual. Its two fault categories, CAT I and CAT II, are the basis for the urgency on this page.
Any Aerosharp from 2009 to 2013: whatever the model, the position is the same: a defunct maker, no parts, and a serious fault means a replacement.

All 12 Aerosharp error codes, explained

An Aerosharp shows a fault as a short message on its screen, such as Ground Fault, BIT Failure or TVS1 Failure. Its manual sorts them into two kinds: a CAT I fault stops the inverter until it is repaired, and a CAT II warning lets it keep running. The table also covers the two things owners notice most: a dead screen and a unit that beeps or buzzes. All 12 are in one table below. The number in brackets after each code's name is its source in the reference list.

Stop and call A safety or hardware fault that nobody can fix from a phone. Do the one safe restart at most, then call.
Worth a look Something to check or restart safely. If it comes back, book a visit.
Wait and watch The inverter has paused for a reason outside itself, usually the grid or the light, and restarts on its own.

We always err on the cautious side: when a code sits between two ratings, it gets the higher one.

10 stop and call, 1 worth a look, 1 wait and watch.

Error code	What it means	What to do
BeepingAerosharp Beeping	Beeping or buzzing^[2] No Aero-Sharp document we could find explains a beep code, and the only readable manual is a scan. A new constant buzz, hum or beep from one of these units is either an alarm for a fault shown on the screen or a failing internal part, and the maker is gone. Internal and hardware faults need testing with the right instruments, so we treat them as a call. Best effort · from a secondary copySafe steps in the lookup	Stop and call
BIT FailureAerosharp BIT Failure	Built-in test failure^[1] The inverter failed its own start-up self-test, a CAT I fault that stops it until it is repaired. Every Australian repairer lists it as an internal component failure. Best effort · from a secondary copySafe steps in the lookup	Stop and call
Grid Freq ErrorAerosharp Grid Freq Error	Grid frequency error^[4] The mains frequency went outside the inverter's limits, so it stopped and will reconnect by itself. An occasional one is the grid; a permanent one is the inverter's AC board. Best effort · from a secondary copySafe steps in the lookup	Wait and watch
Grid Volt ErrorAerosharp Grid Volt Error	Grid voltage error^[5] The inverter stopped because the mains voltage it sees is outside its limits, and it reconnects by itself when the grid comes back into range. On these units it is also what shows when the internal AC fuse or AC board has gone, so a Grid Volt Error that never clears is a dead inverter, not a grid problem. Internal and hardware faults need testing with the right instruments, so we treat them as a call. Best effort · from a secondary copySafe steps in the lookup	Stop and call
Ground FaultAerosharp Ground Fault	Ground (isolation) fault^[1] Aero-Sharp shows an earth or insulation problem as Ground Fault, a CAT I fault that stops the inverter until it is repaired. It can be a real earth fault on the roof wiring, or, if it never clears, a fused board inside the unit. Best effort · from a secondary copySafe steps in the lookup	Stop and call
No displayAerosharp No display	No display, inverter dead^[3][6] The inverter has no power at all. On a sunny day that means the supply has been cut by a tripped switch or isolator, or the inverter's own power supply has failed, which on an Aero-Sharp is the end of the unit. Best effort · from a secondary copySafe steps in the lookup	Worth a look
PV Over PowerAerosharp PV Over Power	Solar input over power^[1] The inverter thinks the panels are giving more power than it is rated for. It is a CAT II warning, so the unit keeps running, but repairers list a persistent one as an internal fault. Internal and hardware faults need testing with the right instruments, so we treat them as a call. Best effort · from a secondary copySafe steps in the lookup	Stop and call
PV1 Over VoltAerosharp PV1 Over Volt	String 1 voltage too high^[1] The inverter read too much voltage on solar input 1. It stops and restarts by itself when the reading clears; if it keeps showing, the repairers list it as an internal fault rather than a real array problem. Over-voltage, over-current and short-circuit faults can damage hardware, so we treat them as a call. Best effort · from a secondary copySafe steps in the lookup	Stop and call
PV2 Over VoltAerosharp PV2 Over Volt	String 2 voltage too high^[1] The inverter read too much voltage on solar input 2. It stops and restarts by itself when the reading clears; if it keeps showing, the repairers list it as an internal fault rather than a real array problem. Over-voltage, over-current and short-circuit faults can damage hardware, so we treat them as a call. Best effort · from a secondary copySafe steps in the lookup	Stop and call
System ErrorAerosharp System Error	System error, internal fault^[1] A CAT I internal fault: the inverter stops and needs manual repair, which for this brand means an internal component has failed and parts do not exist. Best effort · from a secondary copySafe steps in the lookup	Stop and call
TVS1 FailureAerosharp TVS1 Failure	Surge suppressor 1 failed^[1] An internal surge suppressor (TVS1) has failed, usually after a storm or a grid surge. The inverter keeps running and simply tells you the part needs replacing, which for this brand is not possible. Internal and hardware faults need testing with the right instruments, so we treat them as a call. Best effort · from a secondary copySafe steps in the lookup	Stop and call
TVS2 FailureAerosharp TVS2 Failure	Surge suppressor 2 failed^[1] An internal surge suppressor (TVS2) has failed, usually after a storm or a grid surge. The inverter keeps running and simply tells you the part needs replacing, which for this brand is not possible. Internal and hardware faults need testing with the right instruments, so we treat them as a call. Best effort · from a secondary copySafe steps in the lookup	Stop and call

Got an Aerosharp error code? Free phone diagnosis in our service area

Our own licensed electricians cover Greater Adelaide and regional SA, and from North Brisbane up through the Sunshine Coast to Gympie. Check your postcode, then read us the code and tell us the install year. If it needs a visit, the callout is credited against the work.

How to restart an Aerosharp inverter safely

Try one restart, in this order:

Switch the solar supply main switch off at the switchboard.
Switch the DC isolator off at the inverter.
Wait five minutes.
Switch the DC isolator back on, then the solar supply main switch.

Never open the unit or touch the wiring. Never restart anything that smells hot or shows scorch marks. If the code comes back after one restart, stop and call.

Aerosharp inverter repair or replacement?

Our electricians start with the whole system rather than the inverter: insulation resistance on each string, earth continuity, the relay, DC string voltages and currents, the AC supply, and anything the unit still shows. That matters with Aerosharp, because two of its messages can mislead. A Ground Fault can be a genuine earth fault on the roof, and a Grid Volt Error that never clears is often the inverter's own AC fuse or AC board rather than the grid.

If the inverter itself has failed, there is nothing to repair it with. We quote a straight replacement and a hybrid option side by side, so a battery can go in now or later. Your panels usually stay put, and the callout is taken off whichever you go with.

We do this work in Adelaide, the Adelaide Hills, Gawler, the Barossa, the Fleurieu, Murray Bridge and Yorke Peninsula in South Australia, or North Brisbane, Caboolture, Bribie Island, the Sunshine Coast, Noosa and Gympie in Queensland only. Outside those areas, everything above still applies: take the code, its meaning and the urgency to a licensed electrician near you.

Where these Aerosharp error codes come from

No maker's manual survives for Aerosharp, so every code on this page comes from secondary copies and each row says "best effort". Treat them as a guide, and have an electrician confirm the fault before anything is replaced. The numbers match the references in the code table.

[1]
SAE Group, Aero Sharp Solar Inverters8 codes, best effort, from a secondary copy
[2]
Brand-level row. Gold Coast Solar Power Solutions Aero-Sharp page carries owner reports of buzzing with no lights, answered with switch off and call an installer1 code, best effort, from a secondary copy
[3]
Driftwind lists the same row1 code, best effort, from a secondary copy
[4]
SAE Group1 code, best effort, from a secondary copy
[5]
SAE Group (CAT II behaviour from the HR-INV-X01 manual), Static Electrics and Solargain fault tables (AC fuse or AC board), Solar4Living Aero-Sharp problems page (260 V trip setting, seen in search results only)1 code, best effort, from a secondary copy
[6]
Solargain, Aero-Sharp Inverter Faults (Inverter dead: internal component failure, replace if all isolators are on)1 code, best effort, from a secondary copy

Tables last updated 21 October 2026

Aerosharp error code questions, answered

How do I read an Aerosharp error code?

Write down the exact words on the screen, including the number in messages like PV1 Over Volt or TVS2 Failure, then search the table above. If the screen is blank or the unit is only making a noise, look at the No display or Beeping rows instead.

What does Aerosharp Ground Fault mean?

Ground Fault is “ground (isolation) fault”. Aero-Sharp shows an earth or insulation problem as Ground Fault, a CAT I fault that stops the inverter until it is repaired. It can be a real earth fault on the roof wiring, or, if it never clears, a fused board inside the unit. We rate it stop and call. See it in the table.

What does Aerosharp Grid Volt Error mean?

Grid Volt Error is “grid voltage error”. The inverter stopped because the mains voltage it sees is outside its limits, and it reconnects by itself when the grid comes back into range. On these units it is also what shows when the internal AC fuse or AC board has gone, so a Grid Volt Error that never clears is a dead inverter, not a grid problem. Internal and hardware faults need testing with the right instruments, so we treat them as a call. We rate it stop and call. See it in the table.

Do you cover my area?

We work in Adelaide, the Adelaide Hills, Gawler, the Barossa, the Fleurieu, Murray Bridge and Yorke Peninsula in South Australia, or North Brisbane, Caboolture, Bribie Island, the Sunshine Coast, Noosa and Gympie in Queensland. Check your postcode to be sure. Outside those areas, this page still tells you what your code means and how urgent it is, and a licensed electrician near you can take it from there.

What does it cost to have an Aerosharp looked at?

For homes in our service area, the phone diagnosis is free. If it needs a visit, there is a callout fee, and it is credited against any repair or replacement we do.

Will you work on an Aerosharp you did not install?

Yes, if it is in our service area. Most of our repair work is on systems someone else installed. We test the whole system, not just the unit on the wall.

Is an Aerosharp worth repairing?

Not for anything inside the unit. The maker is gone and the parts do not exist, so a replacement is the better use of your money. The exception is a fault outside the inverter, such as an earth fault in the roof wiring or a tripped switch, and we look for those first.

My Aerosharp is beeping or buzzing. What should I do?

Treat a new, constant beep, buzz or hum as a fault. It is either an alarm for a message on the screen or a part failing inside, and nobody can tell which from outside the box. Repairers’ advice is to switch the system off and call: the solar supply main switch at the switchboard first, then the DC isolator.

Where do the codes on this page come from?

No maker’s manual survives in readable form for Aerosharp. The HR-INV-X01 series manual exists only as a scan, so every code on this page comes from secondary copies: a published summary of that manual and fault tables kept by Australian solar repairers. Every row says best effort and carries a numbered reference to its document in the source list.

Written by

Joe Deionno

Started in 2017 after years of subcontracting and seeing the dodgy operators at work; set out to be the installer people could trust. Oversees every install in both states.

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