Handy Hints Blog

Does your home still have a faulty Solar PV isolator switch?

  • 22 Apr 2015

Many residences around Brisbane still have faulty solar PV DC isolators fitted to solar power systems putting their homes at risk of fire every day. 

The recall of the various brands of defective solar PV isolator switches has been occurring over the last few years but authorities advise that many have not been replaced, presenting dangers to residents as well as anyone working on the solar PV systems.

Home owners are advised to check the brand of the isolator switch fitted to their solar system as soon as possible. The switch is usually located next to the inverter or on the roof near the solar panels. If you discover that one of the following recalled DC isolator switches is installed in your system we advise you shut the solar power system down immediately following the manufacturers shut down procedure and contact your installer or a licenced electrician to replace the switch safely.

Recalled Solar PV isolator brands

  • GEN3
  • SPM
  • PVPower
  • NHP
  • ISOMax


Faulty AVANCO Solar PV Isolator Switch
Faulty AVANCO isolator switches

Recalled AVANCO branded DC isolator model numbers:

  • AV/DC4P25A
  • AV/DC2P25A
  • AV/DC4P25AUB
  • AV/DC2P625AU
  • AV/DC2P25AU
  • AV/DC2/2P25AU
  • AV/DC2/2P125AU
  • AV/DC4P25AU
  • AV/DC4P25AUS
  • AV/DC4P25AUT

GEN3 and SMP

GEN3 and SPM Isolator Switch
GEN3 and SMP faulty isolator switch


PVPower Faulty Solar PV Isolator
PVPower faulty isolator


NHP isolator switch
NHP defective solar PV isolator switch

NHP isolator switch models involved in the recall:

  • NHP-KDA-432
  • KDM-432


Models recalled from this brand:

  • LS16, DCISO 1000V
  • LS25, DCISO 1000V
  • LS32, DCISO 1000V

Solar PV assistance 

If you are unsure if your solar PV system is fitted with one of these switches or need help with the shut down procedure of your solar power system give our experienced solar power team a call for assistance 1300 762 260. It is very important to schedule regular checks and maintenance on your solar PV system to ensure any damage, moisture ingress or faults are discovered promptly.

For more information on the recall and details of brand suppliers if you can't get in touch with your installer visit www.worksafe.qld.gov.au

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