Solutions for Solar Inverter Problems

Can I Fix My Inverter?

Can I fix my inverter?

This is one of the common questions we get at inverter doctor and unfortunately the more common answer is no! However, you can always try a few simple “Safe” steps to get your inverter working again.

If your PV system has stopped working there are a few reasons that could have caused this from happening and it may not be down to the inverter itself.

  • Problem with the panels
  • The installation or cabling between the inverter and panels
  • Mains electricity supply to the inverter


First of all, check if there is power getting to the inverter from the mains.  On your main fuse board, make sure the trip switch that is responsible for the inverter is in the ON position.  (This should be labelled solar)

Make sure all isolator switches are in the ON position.  A PV system should have 2 isolators. (switches) A red one and a black one. The red is the AC isolator. This isolator is normally found by the inverter.  (It should been labelled.) This is giving power to the inverter from the mains. The black isolator is the DC isolator. This isolator is responsible for isolating the power from the solar panels. This will have high voltages coming from the solar panels as long as there is daylight. Again, it should be labelled. Do NOT open either isolator.

If all power is on and there is still a problem sometimes the inverter may need to reset itself.

Turn all isolator switches off and leave it for 5 minutes.

Once all power is off there shouldn’t be any power getting to the inverter from the mains or from the solar panels. This will allow the inverter to potentially reset itself. Don’t worry, you won’t lose any data on the inverter.

After a few minutes have passed turn the inverter back on.  If the problem is still there, please fill in your details on the home screen and we will try to help out as best we can.

Most problems can be solved by answers within the website. However if you are still having trouble send us your details and we will try to help.
Thank You. We will contact you as soon as possible.