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Need inverter repair for a Magnum Energy inverter? Four Star Solar can help!

Magnum-certified technician, Chad, diagnoses the problem on an inverter needing repair.

Four Star Solar is an authorized repair center for Magnum Energy, Inc. They sell more Magnum Energy inverters than any other distributor in North America. In addition, Four Star Solar integrates all models of Magnum Energy inverters into pre-wired, pre-tested power centers in every conceivable configuration. Four Star's repair technicians are trained by Magnum Energy and have open communications with Magnum Energy engineers and technicians.

If your troubleshooting fails

Call Four Star Solar for your Magnum Energy Inverter Repair at:
(877) 544-7075.

For sales please call: 1-800-472-1142
Inverter failure happens. How can you avoid it as long as possible?

Inverters are sensitive electrical equipment built around circuit boards that need to communicate with each other, with your solar array or power source, and with your house and appliances. Dust, grime, humidity, nearby lightning, and a host of other things can affect the intricate wiring and operations. Power centers that are located in dingy, grimy corners of warehouses, boats, or RV’s may be more problematic than ones located in a clean utility room of the house.

If your inverter has to run at full power all the time, you cannot expect the longest life expectancy. Talk with your solar designer and/or installer about this aspect of your solar electric system design.

Solar power inverters may fail because of short “impulse” type surges from the grid or from your PV array. These surges can be instantaneously damaging or can contribute to early aging. Vibrations, mechanical stress, high internal temperatures caused by high current, continuous operation under maximum voltage conditions, and voltage stress can lead to failure of the capacitors.

Four Star Solar performs repair on all Magnum Energy DC to AC power inverters, including these models:

Troubleshooting before you assume the worst

Before proceeding with any troubleshooting refer to the Installation section of your inverter manual for safety precautions. Manuals are accessible from Magnum Energy's website and from our site.
Before you call, go through the steps below:
Round up the model number, serial number, date of purchase, where it was purchased. Locate the "measured" battery voltage (not "12 or 24" but should look like 12.56 VDC)? If Magnum gave you an RMA or case number, have that handy as well.

Note: Warranty repair on Magnum products can only be authorized by Magnum Energy. Please call Magnum's warranty administration 425-353-8833 for more details.

Note: The steps for troubleshooting are meant to be followed by qualified personnel. If you are qualified to do the troubleshooting yourself, pull out the manual and proceed with caution.Removal of inverter, from vehicle or power center, should be performed by qualified personnel, such as a licensed or certified electrician.

WARNING: Prior to performing the following checks,
switch OFF both the AC and DC circuits. Capacitors store energy at a high voltage. Your inverter can be “dead” for all intents and purposes, but the capacitor inside can still be holding enough energy to hurt you seriously. We recommend that you get a local electrician to disconnect your solar power inverter, rendering it safe to bring or send to us for repairs.

FIRST step
to sorting through what you think is a broken inverter is to make sure that DC energy is actually reaching the inverter.

  • Inspect the batteries for leaks, cracks, or swelling. Replace if necessary.
  • Use toothbrush and baking soda paste to clean and remove any electrolyte buildups or spills.
  • Check and tighten all battery clamps (if applicable).
  • Clean and tighten all terminals and connecting cables.
  • Check and fill battery water levels of Liquid Lead Acid batteries only.
  • Check individual battery voltages. Load test those that have a voltage difference of more than 0.3 VDC from each other. Replace if necessary.
  • Check all cables for signs of chafing. Replace if necessary.
  • Check inverter’s cooling vents and clean if necessary.

SECOND step, before seeking technical advice or repair is to do an inverter reset.
To perform a power reset (also known as a hard reset):
  1. REMOVE all sources of AC power (utility or generator power) to the inverter.
  2. Open all inverter DC disconnects (or disconnect the positive battery cable to the inverter).
  3. Be sure the inverter(s) and the remote are disconnected from all DC and AC power. The remote display should be blank.
  4. After the inverter(s) has been disconnected from all power for 30 seconds, reconnect the inverter DC disconnects, or reconnect the positive battery cable and resume operation. NOTE: If DC disconnects are not used, there may be a momentary spark when the positive battery cable is connected to the inverter terminal. This is normal, indicating that the inverter’s internal capacitors are being charged.

THIRD step, determining if your inverter is covered by warranty will require that you show proof of purchase. Your receipt for purchase can be copied and emailed or sent with the unit.

If all else fails, call Four Star Solar at the number above.

*Please Note: Four Star Solar charges $100 per hour for inverter diagnostic and repair (not including any repair parts or shipping charges) with a minimum charge of $100. Repair determined to be under warranty will be billed directly to Magnum.