Airwell HDD 009, Manual

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AN COMPANY
‹ # ›
Error Failure Code list and Probable Cause
Indoor indicators Outdoor indicators Failure Possible Reasons/Corrective actions
2* 7
segments
LEDs
(RUN,COOL,HEAT)
D40 D41 D42 D43
F1
COOL OFF 3S and blink once RAT failure
1.Senor was broken or damaged
2.PCB temperature detection circuit has problem
F2
COOL OFF 3S and blink twice ICT failure
F3
COOL OFF 3S and blink 3
times
□ □ ☆ ■
OAT failure
F4
COOL OFF 3S and blink 4
times
□ □ ☆ □
OCT failure
F5
COOL OFF 3S and blink 5
times
□ □ ☆ ☆
CTT failure
F6
COOL OFF 3S and blink for 6
times
■ □ ☆ ☆
HZ down due to overload
1.Too high ambient temperature
2.Poor heat exchange (including blockage and bad
radiating environment )
F8
COOL OFF 3S and blink 8
times
■ ■ □ ■
Hz down due to over current
1.Power supply voltage is too low
2.Higher system pressure and overload
F9
COOL OFF 3S and blink 9
times
■ ■ □ □
Hz down due to high air
discharging
•Overload or temperature is too high
•Insufficient refrigerant
•EEV Problem
PH
COOL OFF 3S and blink 11
times
□ ■ □ ☆
DC over voltage
•AC power supply is higher than 265V
•Outdoor PCB circuit malfunction
U5
COOL OFF 3S and blink 13
times
□ ■ ☆ ■
AC Current detection problem Outdoor PCB problem, replace the outdoor controller.
Sample of 18/24 □ - LED OFF / ■ - LED ON / ☆ - LED BLINK