Daitsu DS-12UIDN, Manual

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18
Malfunction analysis
Error Code
● When air conditioner status is abnormal, temperature indictor on indoor unit will
blink to display corresponding error code. Please refer to below list for identific
ation of error code.
Error code
Indoor
display
Error code Troubleshooting
Heating indicator ON 10s OFF 0.5s Means defrosting status. It’s the normal phenomenon.
E5: overcurrent protection Power indicator blinks and E5 is displayed
C5:Connector jumper malfunction Check if the connector jumper contacts the properly. If
replace the PCB, please take off the old for the new PCB.
F1:Indoor ambient temp. sensor
malfunction
Check if indoor room temp. sensor is connected properly?
F2:Evaporator temp.sensor malfunction Check if indoor tube temp. sensor is connected properly?
H6:PC motor (indoor fan) can’t run • Feedback terminal of PG motor hasn’t been connected
firmly.
• The control end of PG motor hasn’t been connected
firmly.
• Fan blade hasn’t been installed correctly and it can’t run
smoothly.
• Motor hasn’t been installed correctly and tightly.
• Motor has been damaged.
• Control panel has been damaged.
U8:Malfunction of zero cross detection
circuit for PG motor (indoor fan)
Control panel has been damaged.
Note:
If there’re other error codes, please contact qualified professionals for service.
WARNING
■ When below phenomenon occurs, please turn off air conditioner and
disconnect power immediately, and then contact the dealer or qualified
professionals for service.
● Power cord is overheating or damaged.
● There’s abnormal sound during operation.
● Circuit break trips off frequently.
● Air conditioner gives off burning smell.
● Indoor unit is leaking.
■ Do not repair or refit the air conditioner by yourself
■ If the air conditioner operates under abnormal conditions, it may cause
malfunction, electric shock or fire hazard.
Above indicator diagram is only for
reference. Please refer to actual
product for the actual indicator and
position.