Fujitsu AUUH18LUAS Service Manual page 70

Error contents
E: 74.↓. Outdoor temperature
thermistor error (Outdoor unit)
E: 77.↓. Heat sink thermistor error
(Outdoor unit) (24/30/36 model)
E: 84.↓. Current sensor error (Outdoor
unit)
E: 86.↓. High pressure switch error
(Outdoor unit) (24/30/36 model)
E: 94.↓. Trip detection (Outdoor unit)
E: 95.↓. Compressor motor control
error (Outdoor unit)
E: 97.↓. Outdoor unit fan motor error
(Outdoor unit)
E: 99.↓. 4-way valve error (Outdoor
unit)
E: A1.↓. Discharge temperature error
(Outdoor unit)
E: A3.↓. Compressor temperature error
(Outdoor unit)
E: AC.↓. Heat sink temperature error
(Outdoor unit) (24/30/36 model)
● ○
: Light on : Light off
1-4. Error code table (Outdoor unit)
POWER/
ERROR
MODE
■ ●
2
■ ●
2
■ ●
2
■ ●
2
■ ●
2
■ ●
2
■ ●
2
■ ●
2
■ ●
2
■ ●
2
■ ●
2
■
(n) : n Times blinking
- (03-4) -
PUMP
LOW NOISE
DOWN
L1 L2 L3
■ ■ ○
7 4
■ ■ ○
7 7
■ ■ ○
8 4
■ ■ ○
8 6
■ ■ ○
9 4
■ ■ ○
9 5
■ ■ ○
9 7
■ ■ ○
9 9
■ ■ ○
10 1
■ ■ ○
10 3
■ ■ ○
10 12
PEAK CUT
L4 L5 L6
○ ○ ●
○ ○ ●
○ ○ ●
● ○ ○
○ ○ ●
○ ○ ●
○ ● ●
○ ○ ●
○ ○ ●
○ ○ ●
○ ● ●
1. Error code