Mastervolt MASS COMBI ULTRA 12/3000-150

Mass Combi Ultra 12/3000-150, 24/3500-100, 48/3500-50 – User and Installation Manual
27
7.3.1 Trouble shooting table
Illuminating LEDs
MasterBus alarm
Explanation / Possible cause
What to do
Normal operation and warnings
None
The Mass Combi Ultra is switched
off manually.
Switch on the Mass Combi Ultra by
means of the main switch.
(1) blinking
Error: solar voltage or current out
of range
Check Solar input, refer to input
specifications in chapter 8.
(2) blinking slowly
(2x/sec)
Inverter is synchronizing voltage
and frequency to generator AC.
Wait until the inverter is ready
synchronizing. After this, it will
activate the generator input.
(2) blinking fast
(5x/sec)
MB monitoring: ACin
Low quality
Error: generator input voltage or
frequency out of range
Check generator voltage and
frequency, refer to generator input
specifications in chapter 8.
(3) blinking slowly
(2x/sec)
The inverter is synchronizing its
voltage and frequency to mains
AC
Wait until the inverter is ready
synchronizing. After this, it will
activate the mains input.
(3) blinking fast
(5x/sec)
MB monitoring: ACin
Low quality
Error: mains input voltage or
frequency out of range
Check mains voltage and frequency,
refer to generator input specifications
in chapter 9.
(4) red
MB monitoring:
Overload
Inverter in overload, inverted
power exceeds 3500 W
Check the load connected and
disconnect.
(10) red
Battery low
Battery voltage low
Stop inverting, start charging
(11) blinking
Error in sec charger
Internal Hardware error
Contact Mastervolt
(10) blinking red
Charging a low battery
Disconnect all DC loads
Errors (Mass Combi Ultra shuts down)
(4) and (10) red, (5)
yellow
Overtemperature
Combi too hot. Restart when
alarm is over
Check ventilation
(10) red, 8 and 9
yellow
Battery high
Battery voltage too high, Combi
restarts when the alarm is over.
Stop charging, check battery voltage
setting
(10) red, (8) yellow, (9)
off
Temp sense error
Temperature sensor sends a
wrong signal.
Check battery sensor and its cable
(10) red, (8) yellow, (9)
off
Batt temperature
Battery hot, Combi restart when
alarm is over.
(4) and (10) red
System error,
Sync error,
Config error
Communication disturbed
Configuration wrong
Check Sync cables and connectors
Permanent errors (manual reset required)
(4) and (10) blinking
fast red
Overload
Number of inverter overload
restart attempts exceeded.
Reduce the output loads, shut off and
on the Mass Combi Ultra.
System error
Hardware issue
Switch off and on the Mass Combi
Ultra.
(6) and (7) blinking fast
Install error
Installation error
Correct installation, shut off and on
the Mass Combi Ultra.