I'm having some trouble with my Giandel 24v 2000w inverter. The input voltage readout (on the LED panel on the front of the inverter) is not reporting the correct voltage and is consistently lower than the actual voltage. The system was working great for about 5 days of operation but then this problem started happening. I had run the batteries down to 19v during the first few days and the lo power cut off worked great, now it is cutting off the power at 24.5 volts which is obviously not good.
The system is shutting down due to a low power alarm while there is plenty of charge in the batteries.
Symptoms: The input voltage on the inverter consistently reads a voltage under the actual input voltage.
Here is the troubleshooting I've tried.
All the supplied voltages are being tested with a power supply and double checked at the input terminals with a trusted multimeter. Input voltage ("when I supply") is from the power supply. "input voltage reads" is from the LED screen on the front of the inverter.
When I supply 26.5V the input voltage reads 25.8V.
When I supply 26.0V the input voltage reads 24.0V
When I supply 25.5V the input voltage reads 21.5V
When I supply 25.2V the input voltage reads 19.5V and the low power alert starts beeping.
When I supply 25.0V the low power cutt off activates with the LED screen displaying LO and the buzzer is on consistently until the system is turned off.
Is there anything to do to re-calibrate the voltage reader? What could cause this issue?
The only thing that I can think of that could do damage to the system is I have a 12v water pump running on a circuit behind a 24v to 12v step down. It's also possible the inverter is just bad.
Anyone else experience this? Suggestions on what to do?
The system is shutting down due to a low power alarm while there is plenty of charge in the batteries.
Symptoms: The input voltage on the inverter consistently reads a voltage under the actual input voltage.
Here is the troubleshooting I've tried.
All the supplied voltages are being tested with a power supply and double checked at the input terminals with a trusted multimeter. Input voltage ("when I supply") is from the power supply. "input voltage reads" is from the LED screen on the front of the inverter.
When I supply 26.5V the input voltage reads 25.8V.
When I supply 26.0V the input voltage reads 24.0V
When I supply 25.5V the input voltage reads 21.5V
When I supply 25.2V the input voltage reads 19.5V and the low power alert starts beeping.
When I supply 25.0V the low power cutt off activates with the LED screen displaying LO and the buzzer is on consistently until the system is turned off.
Is there anything to do to re-calibrate the voltage reader? What could cause this issue?
The only thing that I can think of that could do damage to the system is I have a 12v water pump running on a circuit behind a 24v to 12v step down. It's also possible the inverter is just bad.
Anyone else experience this? Suggestions on what to do?