H-Code - Daikin LXE10E-A Service Manual

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3.10.3.2 H-code

H001 =The alarm is displayed when the control temperature does not decrease by 3˚C or more
every 4 hours during pull-down operation.
Inside
Temperature
t
SP+1˚C
SP
H002 =The alarm is displayed when the total time out of "in-range" reaches 2 hours. (Counting is
not performed during defrosting).
SP+1
SP
H003 =The alarm will be displayed when the total time below setpoint –1˚C reaches 2 hours.
H004 =The alarm will be displayed when the total time below setpoint –2˚C reaches 2 hours.
SP
SP–1
SP–2
If "t" is smaller than 3˚C, code "H001" appears.
※ This criteria (3˚C) can be adjusted from 1, 2, 5 or 10˚C.
4Hr
t
1
t
1
t t
1' 2'
3-65
time
t +t +t
> 2Hrs
1 2 3
H002
t t
2 3
t +t
> 2Hrs
1 2
t H003
2
t '+t '
> 2Hrs
1 2
H004
Figure2
Figure3
Figure4