Hello, i have aPower Star w7 3000 w 24v inverter/charger which has power working,tje alarm indicates over temperature trip. How must to make? I don't undertand over electronic system.

The Blue Star DX Unit E2 alarm is an error code that indicates a problem with the discharge temperature sensor. Here are some steps you can take to try and rectify the issue:

1. Turn off the DX unit and disconnect the power supply to the unit.
2. Check the wiring and connections of the discharge temperature sensor. Make sure the connections are tight and the wiring is not damaged or frayed.
3. Clean the discharge temperature sensor. Remove any dirt, dust, or debris that may have accumulated on the sensor, as this can interfere with its readings.
4. Check the sensor's resistance. Use a multimeter to check the resistance of the sensor. If the resistance is too high or too low, this may indicate a faulty sensor that needs to be replaced.
5. Replace the sensor. If the sensor is faulty, replace it with a new one that is compatible with the Blue Star DX unit.
6. Reset the unit. Once you have rectified the issue, reset the DX unit and see if the error code clears.

If you are unable to rectify the issue, or if the error code persists, it may be best to contact a qualified technician or Blue Star customer service for further assistance.

Xantrex Freedom Marine 25, Off Grid Inverter, 2500 Watts, 12 Volt, Portable
Manufacturer Part Number: 81-2511-12

Detailed Description: AC Power Inverter with High Surge Capability, 3-Stage Charger.

• MSW AC power inverter with high surge capability
• Automatic 3-stage battery charger
• Temperature compensation with equalization stage provides optimal charging of deep cycle batteries
• Built-in transfer switch automatically transfers between inverter power and incoming AC power
• Multiple battery bank charging from the built in 15 A echo~charge
• Power sharing prevents source AC input circuit breaker from tripping
• Customized settings can be programmed with the Freedom Basic Remote or Link panels
• Aluminum chassis ideal for marine environment
• Includes battery temperature sensor
• 30 month warranty

Protection Features

• Over voltage and under voltage protection
• Over-temperature protection
• Overload protection
• Short circuit protection

Inverter has alarm sound and red indicator light is on, which indicates abnormal phenomena caused by overvoltage/undervoltage/overload/overtemperature. The machine should be switched off immediately. Check the cause of the abnormality; remove it and then access it. Usually, the buzzing alarm is caused by the low voltage of your battery (bottle) or DC power supply (less than 10.4V alarm of inverters). It is necessary to start the vehicle to start charging your car engine or charge your battery (bottle) through the charger. https://www.dieselgeneratortech.com/generator-set

It is most likely the low voltage alarm. Suggest connecting when the car is running with no load (110 volts not connected). If the alarm continues turn the unit off and on to reset.

Hope this helps?

Inverter Protection Features
• Short Circuit Protection. The inverter will automatically shut down until short is removed.
• Low Voltage Alarm. An alarm will sound when the voltage from the battery discharges to 10.5 +/- 0.5 volts DC. This is an indication that the battery needs to be recharged.
• Over Voltage Protection. The RED LED Indicator Light will illuminate and the inverter will automatically turn itself off when the input exceeds 16.5 +/- 1 volt DC.
• Under Voltage Protection. The RED LED Indicator Light will illuminate and the inverter will automatically turn itself off when the input is less than 10.0 +/- 0.5 volts DC.
• Overload Protection. The RED LED Indicator Light will illuminate and the inverter will automatically turn itself off when the continuous draw of the equipment being operated exceeds 1200 watts or the surge draw of the equipment exceeds 2400 watts.
• Thermal Protection. The RED LED Indicator Light will illuminate and the inverter will automatically turn itself off when the circuit temperature exceeds 150° F

dear see that :
1- the range of voltage which inverter work between it for example 180-260 v
2- most small generator voltage reach more than 260V so the inveter not work
3-check the frequency of genaratoer if it not fix the inverter will mot work

In a PC-Desktop? Sweet.

It's not the battery that might be damaged. It would be the charger. What the charger does after it is damaged might be when and if a battery could be harmed.

Generally any AC powered device plugged into an inverter will work pretty well as long as the inverter is not putting out too poor of an AC voltage AND you don't exceed the inverter's rating.

This alarm state is a CH 06 alarm.
Indication for the Indoor unit pipe temperature sensor (thermister) not plugged in or out of calibration.

This alarm will also occur when the unit gas charge is to low and the indoor unit temperature reached a temperature of -5°C for longer that 30 sec. It will switch the machine off.

Check your overload breaker. If it is tripped or bad you will not charge or invert power.