Nortek GFU18USV4DH - Page 29

DC Inverter U-match Series Floor Ceiling Type Unit
26
22
HC
PFC protection
23
Lc
Activation failure
24
Ld
Compressor phase sequence protection
25
LE
Compressor stalling protection
26
LF
Power protection
27
Lp
Indoor and outdoor mismatch
28
U7
4-way valve direction changing protection
29
P0
Drive reset protection
30
P5
Over-current protection
31
P6
Communication error between main control and drive
32
P7
Drive module sensor error
33
P8
Drive module over temperature protection
34
P9
Zero passage protection
35
PA
AC current protection
36
Pc
Drive current error
37
Pd
Sensor connecting protection
38
PE
Temperature drift protection
39
PL
Bus low voltage protection
40
PH
Bus high voltage protection
41
PU
Charge loop error
42
PP
Input voltage abnormality
43
ee
Drive memory chip error
NOTICE!
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When the unit is connected with the wired controller, the error code
will be simultaneously shown on it.
(2). Error Indicating Lights on the Panel of the Floor Ceiling Type Unit.
.
Fig. 6.1