MasterPower 5.6KW - User Manual

Questions and Answers

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Brandon StantonAug 16, 2025
Why is my MasterPower 5.6KW working in battery mode when mains exist?
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  Kristina McintoshAug 16, 2025
  If your MasterPower Inverter is working in battery mode even when mains exist, it could be due to a tripped input protector. Check if the AC breaker is tripped and ensure the AC wiring is properly connected. Another reason could be insufficient AC power quality from the shore or generator. In this case, verify that the AC wires are not too thin or excessively long. Also, check if the generator (if applied) is working correctly or if the input voltage range setting is correct.
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Valerie BowersAug 21, 2025
Why does my MasterPower 5.6KW shut down automatically during startup?
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  haileykellyAug 21, 2025
  If your MasterPower Inverter shuts down automatically during the startup process, it's likely because the battery voltage is too low (less than 1.91V/Cell). Try recharging the battery. If that doesn't solve the issue, the battery may need to be replaced.
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Sheryl MoonAug 27, 2025
What to do if my MasterPower Inverter has no response after power on?
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  Alan KingAug 27, 2025
  If your MasterPower Inverter isn't responding after you power it on, the battery voltage might be too low (less than 1.4V/Cell). Check the batteries and wiring to ensure they are well connected. Another possibility is that the battery polarity is reversed, in this case re-charge battery. If the issue persists, consider replacing the battery.
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Shirley NewmanSep 2, 2025
Why is the internal relay switching on and off repeatedly on my MasterPower Inverter?
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  michael85Sep 2, 2025
  If the internal relay of your MasterPower Inverter is repeatedly switching on and off when you turn it on, the battery might be disconnected. Check the battery wires to ensure they are properly connected.
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Courtney PageNov 9, 2025
What to do if my MasterPower Inverter buzzer beeps continuously and the red LED is on?
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  Courtney SandovalNov 9, 2025
  If your MasterPower Inverter beeps continuously and the red LED is on due to an overload error, it means the inverter is experiencing a load exceeding 110% for too long. Try reducing the connected load by turning off some equipment. If the red LED is on because the internal temperature of inverter component is over 100°C, check for blocked airflow or a high ambient temperature. If the output is abnormal (Inverter voltage below than 190Vac or is higher than 260Vac), reduce the connected load. Also, the beeping and red LED could indicate a short circuit, so check the wiring and remove any abnormal loads. Other possible causes include over-charged battery, too high battery voltage or fan fault. In these cases you must return to repair center or replace the fan. The beeping and red LED could a...