MCAC-UTSM-2014-03                                            R410A 380~415V 3Ph 50Hz TempMaker Series Split AC 
104 
Timer lamp flashing at 5Hz, Operation lamp flashing at 5Hz 
 
 
Defrosting lamp flashing at 5Hz 
For these series products, if the condenser temperature sensor malfunction is displayed, it is 
enough to check whether wiring has problem. If the wiring is correct, the PCB should be 
replaced. 
 
Operation lamp and timer lamp flashing at 5Hz   
 
 
10.5 Floor standing type indoor unit malfunction and protection codes 
Fault or protection meaning 
T1, room temperature sensor, fault of open circuit, short circuit. 
T2, pipe temperature sensor, fault of open circuit, short circuit. 
Low temperature protection under cooling mode. 
High temperature protection under heating mode.