Table of Contents
Advertisement
S/N
Fault code
（
）
33
E47 -1/2
（
）
34
E48
-1/2
（
）
35
E49
-1/2
（
）
36
E51
-1/2
（
）
37
E52
-1/2
（
）
38
E53
-1/2
（
）
39
E54
-1/2
（
）
40
E55
-1/2
（
）
41
E56
-1/2
（
）
42
E58
-1/2
（
）
43
E59
-1/2
（
）
44
E60
-1/2
45
E64
46
E65
47
E68
（
）
48
E69
-1/2
49
E71
50
E72
（
）
51
E76
-1/2
（ -
）
52
E77
1/2
（
）
53
E78
-1/2
（
）
54
E79
-1/2
（
）
55
E80
-1/2
（
）
56
E81
-1/2
（
）
57
E82
-1/2
（
）
58
E83
-1/2
（
）
59
E84
-1/2
（
）
60
E85
-1/2
61
E218
Note: 1.The 60 minutes time of the accumulated three times within 60 minutes is calculated with natural time;
2.The flicker of the fault lamp is related to its corresponding number except that E72 does not flicker.
3.After 4 minutes of communication between the wired controller and the unit, it still displays "in communication,
please wait a moment..." The reason may be for multiple units to dial the code set to the host.
Fault description
Compressor reverse phase detection protection
Fault in overcurrent protection of system fan
High-pressure protection of system
Over-current protection of system compressor
Open circuit or short circuit in exhaust temperature
sensor of system compressor
Open circuit or short circuit in coil (outlet) temperature
sensor 1 of system
Open circuit in low-pressure sensor of system
Low pressure protection of system
Open circuit or short circuit in suction temperature
sensor of system
Over temperature of exhaust temperature sensor of
system compressor
Over temperature of coil (outlet) temperature sensor
1/2 of system
Open circuit or short circuit in coil (outlet) temperature
sensor 1 of system
Overload protection of system pump in air conditioning
side
Overload protection of system eletrical assisted heater
in air conditioning side
Overtop or low protection of outdoor ambient
temperature
Refrigerant lack protection of system
Overtop Temperature difference of in and out water
Running time exceeded
Lower temperature of exhaust temperature sensor of
system compressor
Open circuit or short circuit in oil temperature sensor of
system
Lower temperature of oil temperature sensor of system
Over temperature of oil temperature sensor of system
Open circuit in high-pressure sensor of system
High pressure system protection
Fault in system four-way valve switching
The system compression ratio ε is too high for
protection
The system compression ratio ε is too low for protection
System oil temperature preheating
EE fault of mainboard
43
Remarks
One lock
One lock
3 times in 60min,
locked.
3 times in 60min,
locked.
recoverable
recoverable
recoverable
3 times in 60min,
locked.
recoverable
3 times in 60min,
locked.
recoverable
recoverable
One lock
One lock
recoverable
One lock
3 times in 60min,
locked.
One lock
3 times in 60min,
locked.
recoverable
3 times in 60min,
locked.
3 times in 60min,
locked.
recoverable
3 times in 60min,
locked.
3 times in 60min,
locked.
3 times in 60min,
locked.
3 times in 60min,
locked.
recoverable
One lock
Advertisement
Table of Contents
