Mitsubishi Electric PUHY-HP72 Service Handbook page 126

[7-1 Error Code and Preliminary Error Code Lists ]
The last digit in the check error codes in the 4000's and 5000's and two-digit detail codes indicate if the codes apply to com-
pressor inverter on fan inverter.
Example
Code 4225 (detail code 108): Bus voltage drop in the fan inverter system
Code 4230 : Heatsink overheat protection in the compressor inverter system
The last digit
0 or 1
5 or 6
<Compressor inverter>
INV board Outdoor units
HP72YNU
INV42Y HP96YNU
HP120YNU
HP72TNU
INV38 HP96TNU
HP120TNU
<Fan inverter>
INV board Outdoor units
INVS/15Y
INVS/16Y
HWE18240_GB
Compressor inverter system
Fan inverter system
Overload protec-
tion Imax (Arms)
27
48
51
Overload protec-
tion Imax (Arms)
HP72
HP96 4.5
HP120
HP72
HP96 6.5
HP120
Inverter system
Current effective Current peak val-
value error (Arms) ue error (Apeak)
33
58
61
Current effective Current peak val-
value error (Arms) ue error (Apeak)
Off
Off
Temperature
protection TOL
(°C)
56 95
99
95
104
Temperature
protection TOL
(°C)
8.5 Off
12 Off
5
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