Samlexpower PST-300-12

Questions and Answers

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Christopher DayAug 13, 2025
What to do if Samlexpower PST-300-12 Inverter does not turn on?
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  Cynthia CollinsAug 13, 2025
  If the Samlexpower Inverter doesn't turn on (no LED, buzzer, or AC output), first, check the battery input circuit for continuity and ensure all connections are secure. Then, inspect the internal and external DC input fuses and replace them if they're blown. If the unit still doesn't work after replacing the fuses, it may require professional repair due to potential reverse polarity damage.
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Zachary AguilarAug 17, 2025
How to troubleshoot Samlexpower PST-300-12 that is not turning on?
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  Kristen DickersonAug 17, 2025
  If your Samlexpower Inverter fails to power on, ensure there's voltage at the DC input terminals. Start by checking the battery input circuit for any breaks. Next, verify the internal and external DC input fuses are intact and replace any that have blown. Finally, make sure all connections in the battery input circuit are properly tightened.
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boydalbertAug 20, 2025
What to do if AC output shuts down completely on Samlexpower Inverter?
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  jriveraAug 21, 2025
  If the AC output of your Samlexpower Inverter shuts down completely, the status LED turns orange, the buzzer is on, and the green GFCI light is off, it indicates a continuous overload beyond the inverter's power rating. To resolve this, reduce the load connected to the inverter. If the issue persists after resetting and removing the load, the unit may be defective, and it is recommended to contact Technical Support. To reset the inverter, switch it off, wait for 3 minutes, and then switch it back on, ensuring the cause of the shutdown is removed beforehand.
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rebecca14Aug 25, 2025
Why Samlexpower PST-300-12 buzzer alarm is sounded and there is no AC output?
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  Christopher BenderAug 25, 2025
  If your Samlexpower Inverter buzzer sounds, the status LED turns orange, there is no AC output, and the green GFCI light is off, it signifies a shutdown due to over temperature. Verify that the fan is operational; if not, the fan control circuit might be faulty, and you should contact Technical Support. If the fan works, ensure that the ventilation slots are unobstructed and that sufficient cool air is available, and that the ambient air temperature is below 40ºC. Also, reduce the load to decrease the heating effect. The unit will automatically reset once the overheating cause is resolved and it cools down.
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jacob42Aug 28, 2025
How to reset GFCI on Samlexpower PST-300-12?
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  Jordan HamiltonAug 28, 2025
  If there is no AC output from your Samlexpower Inverter, the green GFCI light is off, the status LED is green, and there is no buzzer alarm, the GFCI has likely tripped. This can occur due to leakage or a Neutral to Ground bond on the load side. Check the load side circuits for any leakage or Neutral to Ground bonding and correct it. Then, press the reset button on the GFCI to reset it, ensuring that the inverter is on before resetting.
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Ashley CookAug 31, 2025
Why Samlexpower Inverter has no AC output and the status LED is orange?
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  Ashley ColeAug 31, 2025
  If your Samlexpower Inverter has no AC output, the status LED is orange, the buzzer is on, and the green GFCI light is off, it indicates a shutdown due to high input DC voltage. Ensure the voltage at the DC input terminals is less than 16.5V for 12V versions and less than 33V for 24V versions. Also, verify that the maximum charging voltage of the battery charger, alternator, or solar charge controller is below these limits. If using a solar panel, ensure it is regulated with a charge controller, especially in cold temperatures where the output may exceed safe voltage levels.
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Brian EdwardsSep 4, 2025
How to troubleshoot low AC output voltage on Samlexpower PST-300-12 Inverter?
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  Eric ReedSep 4, 2025
  A low AC output voltage (without a buzzer alarm) is caused by low input voltage at the inverter terminals when the load is near the maximum allowable power. Verify that the battery is fully charged and recharge it if necessary. Also, check that the battery cables are thick enough to carry the required current and tighten the connections of the battery input circuit. Reducing the load can also help.
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Ashley NelsonSep 7, 2025
What to do if Samlexpower PST-300-12 Inverter status LED does not light?
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  Nicholas BennettSep 7, 2025
  If the Status LED does not light when switched ON, the buzzer is off, there is no AC output voltage, and the GREEN indication light on the GFCI is OFF, it could be due to a lack of voltage at the DC input terminals or a reversed polarity. Check the continuity of the battery input circuit and ensure the fuse is intact, replacing it if necessary. When using a 12V power outlet, ensure the AC load is less than 150W and all battery input circuit connections are tight. Also, check for reversed polarity, which may have blown the fuses. Replace any blown fuses. If the unit still doesn't work, contact Technical Support.