TOSOT DC INVERTER U-MATCH AIR
33
6 TROUBLESHOOTING
6.1 Display of Error Code
Table 2-6-1 Error Code List
Compressor high pressure protection
Compressor low pressure protection, refrigerant lacking protection, refrigerant recycling mode
Compressor high discharge temperature protection
Communication malfunction
Malfunction of indoor fan motor
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
Wong dial switch of capacity
Malfunction of outdoor main control memory chip
Malfunction of electric box sensor
Compressor overload protection
Malfunction of DC fan motor
Drive desynchronizing protection
Malfunction of humidity sensor
Compressor phase protection
Models of indoor unit and outdoor unit do not match with each other
Direction changing malfunction of 4-way valve
Communication malfunction between main control and drive
Malfunction of drive module sensor
High temperature protection of drive module
Malfunction of drive current
Sensor connection protection
Temperature excursion protection
Low voltage protection of bus bar
High voltage protection of bus bar
Charging circuit malfunction
Abnormity of input voltage
Malfunction of outdoor drive memory chip
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 code will be displayed
circularly.
When there is a malfunction, please turn off the unit and ask the professional for maintenance.
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