Friedrich MR12Y3H - Manual (Page 12)

11
E R R O R D E T E C T I O N
Error
Operation
LED Coil dry
LED
Timer LED
Serial signal error Off
2 flash off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
3 flash
4 flash
5 flash
Serial signal (reverse) error, at operation start up
Serial signal (reverse) error, during oeration
Serial signal (forward) error, at operation start up
Serial signal (forward) error, during operation
8 flash Wired remote control error
Indoor unit
thermistor error
2 flash
2 flash
Outdoor unit
thermistor error
3 flash
3 flash
2 flash
3 flash
4 flash
Indoor unit control error 4 flash
Indoor unit LED Wired
remote
control
Error
Outdoor unit
control error
5 flash
2 flash
3 flash
5 flash
Indoor fan motor error 6 flash
CT abnormal
Outdoor unit fan drive system abnormal
2 flash
Refrigerant cycle error 7 flash
3 flash
Optional function error
Model information error
8 flash
0.1 sec on/off 0.1 sec on/off 0.1 sec on/off
6 flash
01
01
13
13
00
02
04
0C
06
0A
17
18
1A
11
2 flash
3 flash
Abnormal lock (upper fan motor)
Abnormal rotation (upper fan motor)
12
12
0F
24
1B
Current trip error
Outdoor air thermistor error
Indoor air thermistor error
Heat exchanger thermistor error
Heat exchanger middle thermistor error
Discharge pipe thermistor error
2 flash 20 Manual auto button welded
Compressor location detection error
Model information error
Discharge temperature abnormal
Cooling high pressure abnormal rise
off
off
2 flash
3 flash
19
19
Active filter abnormal (first time)
Active filter abnormal (second time)
4 flash 25 PFC circuit error