12
Error Codes & Solutions
5
The DC voltage is below the protection
settings and the battery protection
mode is activated.
E1
Code
Description
The cooling fan is over-loaded with
more than 1A of current.
E2
Motor start error
The motor of compressor is blocked or the
pressure difference in the refrigeration
system is too high.
E3
Minimum motor speed error
The compressor is over-loaded, and the
motor cannot maintain its minimum speed
of 1850 rpms.
E4
Thermal cut-out of electronic unit
Thermal cut-out error. If the refrigeration
system overloads, or the ambient
temperature is too high, the thermal
sensor is overheated.
E5
NTC failure (open circuit)
LL
NTC failure (short circuit)
HH
