Mastervolt MASS COMBI PRO 12/3000-150

Questions and Answers

Z
zcostaAug 17, 2025
What to do if the (3) light is red on my Mastervolt MASS COMBI PRO 12/3000-150?
- E
  Emily AllenAug 17, 2025
  If the (3) light is red on your Mastervolt Inverter, it means the inverted power exceeds 3500 W. To resolve this, check the connected load and disconnect some devices.
P
pkirkAug 19, 2025
Why is the (9) light red on my Mastervolt MASS COMBI PRO 12/3000-150 Inverter?
- D
  Debra NolanAug 20, 2025
  If the (9) light is red on your Mastervolt Inverter, it indicates that the battery voltage is low. The solution is to stop inverting and start charging the battery.
P
perezjerryAug 22, 2025
What does it mean when (3) and (9) are blinking fast on Mastervolt MASS COMBI PRO 12/3000-150, and how do I fix it?
- C
  Christopher GuzmanAug 22, 2025
  If the (3) and (9) lights are blinking fast on your Mastervolt Inverter, it means the number of inverter overload restart attempts has been exceeded. To fix this, reduce the output loads and then shut off and on the Mass Combi Pro.
J
James LopezAug 25, 2025
What to do if the (2) light is blinking fast on my Mastervolt Inverter?
- J
  jacob36Aug 26, 2025
  If the (2) light is blinking fast on your Mastervolt Inverter, it indicates that the mains input voltage or frequency is out of range. To resolve this, check the mains voltage and frequency, and refer to the generator input specifications.
A
Amy ClarkAug 27, 2025
What does it mean when (5) and (6) are blinking fast on Mastervolt MASS COMBI PRO 12/3000-150?
- C
  christine75Aug 27, 2025
  If the (5) and (6) lights are blinking fast on your Mastervolt Inverter, it indicates an installation error. Correct the installation, then shut off and on the Mass Combi Pro.
J
Joanna WilsonAug 30, 2025
Why is the (1) light blinking fast on my Mastervolt MASS COMBI PRO 12/3000-150?
- R
  Regina RiveraAug 30, 2025
  If the (1) light is blinking fast on your Mastervolt Inverter, it indicates that the generator input voltage or frequency is out of range. Check the generator voltage and frequency, and refer to the generator input specifications.
A
Annette BryantSep 2, 2025
What does the (4) yellow light mean on my Mastervolt MASS COMBI PRO 12/3000-150 Inverter?
- K
  Kathryn RiosSep 2, 2025
  If the (4) light is yellow on your Mastervolt Inverter, it indicates that the Combi is too hot. It will restart when the alarm is over.
A
Audrey RodriguezSep 5, 2025
What does it mean if (9) is red and 7 and 8 are yellow on my Mastervolt MASS COMBI PRO 12/3000-150 Inverter?
- D
  Dale JensenSep 5, 2025
  If the (9) light is red, and the 7 and 8 lights are yellow on your Mastervolt Inverter, it means the battery voltage is too high. The Combi will restart when the alarm is over.
P
Patrick SantosSep 7, 2025
How to switch on Mastervolt Inverter?
- R
  Russell HayesSep 8, 2025
  To switch on the Mass Combi Pro, use the main switch.
S
Sheri RiversSep 10, 2025
What does (1) blinking slowly mean on Mastervolt MASS COMBI PRO 12/3000-150 Inverter?
- H
  Haley RamirezSep 10, 2025
  If the (1) light is blinking slowly on your Mastervolt Inverter, wait until the inverter is ready synchronizing. After this, it will activate the generator input.