17 
 
    2) When TE(TC)﹥40℃  or time is more than 7 minutes, up outdoor motor is on at high speed until 
defrosting is over. 
7.8.4 When meeting one of conditions as below, unit finishes defrosting motion. 
          1) The time of defrosting is up to 10 minutes. 
          2) TE(TC)≥50℃ 
7.8.5 Finishing defrosting motion: Outdoor motor is on, and compressor is off. 
7.8.6 Compressor delay protection is invalid when unit entering into or finishing defrosting motion. 
7.8.7 In heat pump mode, compressor/indoor motor/outdoor motor shut off immediately when water full 
protection is on. 
7.8.8 The TIMER function is valid in heat pump mode. 
 
  7.9 Sensor malfunction   
 
 
Malfunction display: 
When the malfunction happened at the same time, the priority is EC>E4> E3> E2> E1>P1 
  7.10 Some standard functions synopsis 
7.10.1. Timer function 
  When the unit is on, press the Timer button will initiate the Auto-off stop program, the TIMER OFF 
indicator light illuminates. Press the UP or down button to select the desired time. Press the TIMER button 
again within 5 seconds, the Auto-on start program is initiated. And the TIMER ON indicator light illuminates. 
Press the up or down button to select the desired Auto-on start time. When the unit is off, press the Timer 
button to initiate the Auto-on start program, press it again within five seconds will initiate the Auto-off stop 
program. Press or hold the UP or DOWN button to change the Auto time by 0.5 hour increments, The 
system will automatically revert back to display the previous temperature setting if there is no operation in 
a five seconds period. 
Communication malfunction for display board and PCB     
Refrigerant leakage detection