7. DIAGRAMS
7.1 Wiring Diagram
Alarm Code
Description
Possible Cause
Solution
AL79
Power+ alarm:
Safety
inter vention
AL114
Power+ alarm:
Drive connection alarm
Check the wiring connection between
Power Drive and controller
AL115
EEV alarm:
Superheat of EEV is too low
Contact your technical support
AL116
EEV alarm:
EEV LOP alarm
Contact your technical support
AL117
EEV alarm:
EEV MOP alarm
Contact your technical support
AL118
EEV alarm:
High condenser temp. alarm for EEV
Contact your technical support
AL119
EEV alarm:
Low suction temp. alarm for EEV
Contact your technical support
AL120
EEV alarm:
Motor of EEV alarm
Contact your technical support
AL12
1
EEV alarm:
PID of EEV alarm
Contact your technical support
AL122
EEV alarm:
EEV Emergency stop alarm
Contact your technical support
AL123
EEV alarm:
EEV temp. different protection
Contact your technical support
AL12
4
EEV alarm:
EEV pressure different protection
Contact your technical support
AL12
5
EEV alarm:
EEV range error
Contact your technical support
AL126
EEV alarm:
EEV position error
Contact your technical support
AL127
EEV alarm:
EEV serial No. error
Contact your technical support
AL128
Low press alarm
Low pressure protection
Check refrigerant is enough or not
AL129
High press alarm
High pressure protection
Check water volume is enough or not,
check water or air temp. is high or not
AL130
Disc.temp.probe error
Discharge temp. sensor fail or loose
connection
Check discharge temp. check the wire
connection or replace a new sensor
AL131
Suct.temp.probe error
Suction temp. sensor fail or loose
connection
Check suction temp. check the wire
connection or replace a new sensor
AL132
Disc.press.probe error
Discharge pressure sensor fail
Check the running pressure, increase
the water volume or decrease the
setting temp.
AL133
Suct.press.probe error
Discharge pressure sensor fail
Check the running pressure, the
refrigerant is enough or not.
AL134
Tank temp.probe error
Water tank temp. sensor fail or
loose connection
Check water tank temp. check the
wire connection or replace a new
sensor
AL135
EVI SuctT.probe error
EVI suction temp. sensor alarm
Check EVI suction temp. check the
wire connection or replace a new
sensor
AL136
EVI SuctP.probe error
EVI suction pressure sensor alarm
Check EVI suction pressure, check
the wire connection or replace a new
sensor
AL137
Flow switch alarm
Water flow sensor fail or loose
connection
Check the water flow volume is big
enough or not, check flow switch
sensor wire connection
High temp. alarm
Water outlet temp. is too high
Check the water flow volume is big
enough or not, decrease the setting
temp.
AL139
Low temp. alarm
Water outlet temp. is too low
Check the water flow volume is big
enough or not, increase the setting
temp.
AL140
Temp.delta alarm
Temp. different is too much
between water inlet and outlet
Check the water flow volume is big
enough or not
AL152
Power freq.alarm
Frequency of power supply is
unstable
Stop and check the power supply
P35 ALARM CODE LIST
DIAGRAMS P36