Sofar solar 4KTLM-G3 - User Manual

Questions and Answers

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sarah10Aug 20, 2025
What to do if Sofar solar 4KTLM-G3 shows GridOVP alarm frequently?
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  Thomas WattsAug 20, 2025
  If the GridOVP alarm occurs occasionally, it could be due to temporary electric grid abnormalities. The inverter should automatically return to normal once the grid stabilizes. However, if the alarm is frequent, verify that the grid voltage and frequency are within the acceptable range. If they are, inspect the AC circuit breaker and AC wiring of the inverter. If the grid voltage/frequency is outside the acceptable range and the AC wiring is correct, contact technical support to adjust the grid over-voltage, under-voltage, over-frequency, and under-frequency protection points, but only after getting approval from your local electrical grid operator.
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Alexandra BruceAug 21, 2025
How to prevent OverTempDerating on Sofar solar Inverter?
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  Holly CastilloAug 22, 2025
  To prevent OverTempDerating on your Sofar solar Inverter, ensure it's installed away from direct sunlight. Place it in a cool, well-ventilated area. Also, make sure the inverter is mounted vertically and that the ambient temperature stays below the inverter's maximum temperature limit.
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David DodsonAug 23, 2025
What to do if Sofar solar 4KTLM-G3 displays GFCI error?
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  Robert AguilarAug 25, 2025
  If your Sofar solar Inverter is showing a GFCI error, switch it OFF and wait for 5 minutes. Then, switch it back ON. If the problem persists, it indicates internal faults of the inverter, and you should contact technical support for assistance.
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Mrs. Elizabeth SmithAug 26, 2025
What to do if Sofar solar Inverter shows BMS OVP error?
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  grahamscottAug 26, 2025
  If your Sofar solar Inverter displays a BMS OVP error, close the inverter and lithium battery, wait 5 minutes, and then reopen them. If the problem continues, it may indicate an internal failure of the lithium battery, and you should contact technical support.
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William ArnoldAug 27, 2025
How to fix TempFault_Bat error on Sofar solar Inverter?
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  garyolsonAug 27, 2025
  To resolve a TempFault_Bat error on your Sofar solar Inverter, ensure the unit is not exposed to direct sunlight. Install the inverter in a cool, well-ventilated location, mount it vertically, and verify that the ambient temperature remains below the inverter's temperature limit.
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davisscottAug 29, 2025
What to do if Sofar solar 4KTLM-G3 Inverter displays IsoFault error?
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  richard21Aug 29, 2025
  If your Sofar solar Inverter is showing an IsoFault error, check the insulation resistance between the photovoltaic array and ground. If you find a short circuit, repair it immediately.
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morgantimothyAug 31, 2025
How to resolve PvConfigError on Sofar solar 4KTLM-G3?
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  Rebecca JenkinsAug 31, 2025
  To resolve a PvConfigError on your Sofar solar Inverter, check the inverter's PV input mode settings (parallel/independent mode). If the settings are incorrect, change the PV input mode accordingly.
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Lori FitzpatrickSep 2, 2025
What to do if Sofar solar Inverter shows GridOVP alarm?
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  John MckinneySep 3, 2025
  If the Sofar solar Inverter alarm 'GridOVP' occurs occasionally, it might be due to an abnormal electric grid. The inverter should automatically return to normal when the grid stabilizes. If the alarm happens frequently, verify that the grid voltage and frequency are within the acceptable range. If they are, inspect the AC circuit breaker and AC wiring of the inverter. If the grid voltage/frequency is not within range and the wiring is correct, and the alarm persists, contact technical support to adjust the grid over-voltage, under-voltage, over-frequency, and under-frequency protection points, but only after getting approval from your local electrical grid operator.
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Ann SpencerSep 4, 2025
What to do if my Sofar solar Inverter displays GFCI error?
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  Greg AyersSep 4, 2025
  If your Sofar solar Inverter displays a 'GFCI' error, switch the inverter OFF, wait for 5 minutes, and then switch it back ON. If the problem persists, it indicates potential internal faults within the inverter, and you should contact technical support for further assistance.
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Samuel CostaSep 6, 2025
How to fix OverTempDerating on Sofar solar 4KTLM-G3 Inverter?
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  Ray WhiteSep 6, 2025
  If your Sofar solar Inverter displays 'OverTempDerating', ensure the inverter is not exposed to direct sunlight and is installed in a cool, well-ventilated area. Also, verify that the inverter is mounted vertically and that the ambient temperature is below the inverter's specified temperature limit.