When machine has error, the control will show “P” or “E” at AC temp location and show error code at DHW temp location, press key
▼
to search more error codes happened at the same time. Please see table below for error code meaning.
Code display like EX or Px, eg: E2
、
P5
Code Error
meaning
light
remark
E1
compressor overheat or discharge gas high temp protect
Red and shining
Outdoor unit
E2
Outdoor ambient temp. sensor error
Red and shining
Outdoor unit
E3
Pipe temp. sensor error
Red and shining
Outdoor unit
E4
AC returned water temp. sensor error
Red and shining
AC, stop compressor
E5
AC output water temp. sensor error
Red and shining
AC, stop compressor
E6
Hot water temp. sensor error
Red and shining
Hot water, stop compressor
E7
Solar water temp. sensor error normal
Compressor
run
E8
coil hot water protect
Red and shining
Outdoor unit
E9
system antifreeze twice
Red and shining
Stop compressor
EA
DHW antifreeze twice
Red and shining
Stop compressor
F1 Voltage
protect
Red and shining
Only for Inverter outdoor unit
F2 Machine
type
mismatching
Red and shining
Only for Inverter outdoor unit
F3
Compressor stopped abnormally
Red and shining
Only for Inverter outdoor unit
F4
outdoor module radiator tansducer error
Red and shining
Only for Inverter outdoor unit
F5
Outdoor unit current transducer error
Red and shining
Only for Inverter outdoor unit
F6
IPM or module control board error
Red and shining
Only for Inverter outdoor unit
F7
Compressor fail to start
Red and shining Only for Inverter outdoor unit
F8
Outdoor unit overcurrent
Red and shining
Only for Inverter outdoor unit
F9
Exhausted gas temp. transducer error
Red and shining
Only for Inverter outdoor unit
FA
Outdoor module overheat or over-current
Red and shining
Only for Inverter outdoor unit
FB
Outdoor coil overheat
Red and shining
Only for Inverter outdoor unit
P1
high pressure protect
Red and shining
outdoor unit
P2
Low pressure protect
Red and shining
Outdoor unit
P3
Overheat protect
Red and shining
Outdoor unit
P4
Overcurrent protect
Red and shining
Outdoor unit
P5
indoor unit water flow error
Red and shining
Stop compressor
P6
outdoor unit water flow error
Red and shining
Outdoor unit
P7
phase loss
Red and shining
Outdoor unit
P8
misphase
Red and shining
Outdoor unit
P9
Communicate error
Red and shining
Outdoor unit
11
ERROR CODE