MaxPower Sunglow VMII 5000

Questions and Answers

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Jeanette HensonAug 15, 2025
Why MaxPower Sunglow VMII 5000 Inverter works in battery mode when mains exist?
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  Amy LewisAug 15, 2025
  If your MaxPower Inverter isn't working in mains mode even when mains are available, it could be due to a tripped input protector. Check if the AC breaker has tripped and ensure the AC wiring is properly connected. Another cause might be the AC power quality is insufficient, especially from shore power or a generator. Verify that the AC wires aren't too thin or too long, and if using a generator, make sure it's working correctly and the input voltage range setting is correct. You can also try changing the output source priority to Utility first.
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whutchinsonAug 22, 2025
How to fix MaxPower Sunglow VMII 5000 Inverter that shuts down automatically during startup?
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  Darren AllenAug 22, 2025
  If your MaxPower Inverter shuts down automatically during the startup process, it is likely because the battery voltage is too low (less than 1.91V/Cell). To address this, try re-charging the battery. If the issue persists, you may need to replace the battery.
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Susan HerreraAug 27, 2025
What to do if MaxPower Sunglow VMII 5000 has no response after power on?
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  William CallahanAug 27, 2025
  If the MaxPower Inverter gives no response after you power it on, it could be due to several reasons. The battery voltage might be too low (less than 1.4V/Cell), in which case you should try re-charging the battery, or replacing it. Another possibility is that the internal fuse has tripped. If this is the case, contact a repair center to have the fuse replaced.
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vadamsSep 3, 2025
Why MaxPower Sunglow VMII 5000 Inverter relay switches on and off repeatedly?
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  fryemichaelSep 3, 2025
  If the internal relay of your MaxPower Inverter switches on and off repeatedly when you turn it on, it's likely due to a disconnected battery. Check to ensure that the battery wires are properly connected.
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Teresa BrownNov 9, 2025
What to do if MaxPower Sunglow VMII 5000 Inverter buzzer beeps continuously and red LED is on?
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  Bradley LittleNov 9, 2025
  If the MaxPower Inverter beeps continuously and the red LED is on, it indicates a problem. This could be due to several reasons: * The inverter is overloaded (more than 105%). To solve this, reduce the load by switching off some equipment. * If the PV input voltage is too high, reduce either the number of PV modules in series or the connected load. * There may be a short circuit in the output. Check the wiring and remove any abnormal load. * The internal converter component may be too hot (over 120°C). Make sure the unit's airflow isn't blocked and the ambient temperature isn't too high. * The battery might be over-charged, or the battery voltage could be too high. Check if the battery specifications and quantity meet the requirements. * The output may be abnormal, or there co...

Summary

Safety Instructions

Product Overview

Installation Guide

Mounting the Inverter Unit

Battery Connection

Detailed steps and recommendations for correctly connecting the battery to the inverter, including cable size and torque.

AC Input;Output Connection

Procedure for connecting AC input and output wires, emphasizing correct polarity and breaker installation.

PV Connection

Guidelines for connecting photovoltaic modules, including cable specifications and module selection criteria.

Operation Guide

Power ON;OFF

Operation and Display Panel

LCD Display Icons

Explanation of various icons and their meanings displayed on the inverter's LCD screen for status and information.

LCD Settings Configuration

Guide to navigating and configuring settings using the LCD display and function keys.

Display Setting Options

Operating Mode Descriptions

Battery Equalization Description

Provides information on the battery equalization function, its benefits, and how to apply it.

Fault Reference Codes

Warning Indicator Guide

Lists warning codes, associated audible alarms, and icon flashing patterns for system alerts.

Technical Specifications

Line Mode Specifications

Inverter Mode Specifications

Charge Mode Specifications

General Specifications

Trouble Shooting

MaxPower Sunglow VMII 5000 Specifications

General

Model	Sunglow VMII 5000
Waveform	Pure Sine Wave
Rated Power	5000W
Selectable Voltage Range	90-280V AC
Frequency Range	50/60Hz
Transfer Time	10ms
Battery Voltage	48V
Floating Charge Voltage	54V
Humidity	5% to 95% (non-condensing)
Protection Features	Overload, over temperature, and short circuit protection