Common Fault Reference Codes and Warning Indicators on Synapse inverters

This article explains the common fault and warning indicators that can be found on Synapse inverters.

Fault Code

Fault Meaning

Icons

01

Fan is locked when inverter is off

02

Over temperature or negative temperature coefficient (NTC) not connected properly

03

Battery voltage is too high

04

Battery voltage is too low

05

Output short circuited or over temperature is detected by internal converter components

06

Output voltage is too high

07

Overload timeout

08

Bus voltage is too high (internal component failure)

09

Bus soft start failed (internal component failure)

12

Temperature sensor is not connected well or malfunction

50

Power Factor Correction (PFC) over current

51

Overcurrent Protection (OP) over current

52

Bus voltage is too low

53

Inverter soft start failed (internal component failure)

55

Over DC voltage in AC output

56

Battery is not connected

57

Current sensor failed

58

Output voltage is too low

59

PV voltage is over limitation

60

Power feedback protection

71

Firmware version inconsistent

72

Current sharing fault

80

CAN fault

81

Host loss

82

Synchronization loss

83

Battery voltage detected different

84

AC input voltage and frequency detected different

85

AC output current unbalance

86

AC output mode setting is different

90

Dummy software, contact distributor or manufacturer for firmware

 

Fault Reference Codes:

Warning Code

Warning meaning

Icon

01

Fan is locked when inverter is on

02

Over temperature

03

Battery is over charged

04

Low battery

07

Overload

10

Output power derating

32

Communication interrupted

Battery equalization

Battery is not connected