U-Match Series Service Manual
26
5.4 Removal of Wired Controller
Figure 2-5-3 Removal of wired controller
6 TROUBLESHOOTING
6.1 Display of Error Code
Table 2-6-1 Error Code List
When there is a malfunction during operation, error will be displayed on the temperature displaying
zone of LCD. When several malfunctions occur at the same time, these error codes will be displayed
circularly.
When there is a malfunction, please turn off the unit and ask the professional for maintenance.
For example, E1 means high pressure protection during operation.
Compressor high pressure protection
Compressor low pressure protection, refrigerant lacking protection, refrigerant
recycling mode
Compressor high discharge temperature protection
Communication malfunction
Malfunction of indoor ambient temperature sensor
Malfunction of evaporator temperature sensor
Malfunction of condenser temperature sensor
Malfunction of outdoor ambient temperature sensor
Malfunction of discharge temperature sensor
Malfunction wired controller temperature sensor
Compressor overload protection
Outdoor unit Capacity code error
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