T6 inlet water
Sensor temperature
E08
temperature
deviation or
sensor failure
cuts
Sensor temperature
T7 outlet water
deviation or
E09
temperature
cuts
sensor failure
Controller and
Drive PCB
Communication
E10
Communicate
cable cuts
failure
E11
reserved
E12
reserved
E13
reserved
E14
reserved
DC main cable
E15
voltage extra
low
DC main cable
E16
voltage extra
high
AC current
E17
protection
(input side)
IPM module
E18
abnormity
PFC
E19
abnormity
Compressor
E20
start failure
Compressor
E21
lack-phase
IPM
E22
module
reset
Compressor
E23
over-current
Check sensor resistance value
or if sensor cuts
Check sensor resistance value
or if sensor cuts
Check communication cable if
cut
Wiring error
or
IPM module invalid
Check if wiring
error
Re-connect cable or change IPM module
52
Change sensor or re-connect
cable
Change sensor or re-connect
cable
Change connection cable or
re-connect