Friedrich Floating Air Pro-Premiere FPHW091 Service & Parts Manual page 60

Diagnostic Codes
Error Power Timer
Code
1 2
9 OFF OFF
10 OFF OFF
11 OFF ON
12 OFF ON
13 ON OFF
14 ON OFF
15 ON ON
16
17
18
19 OFF OFF
20 ON OFF
21
22
24
60
TROUBLESHOOTING
Running Sleep
3 4 Content
BLINK OFF Maximum current protection
BLINK ON Communication trouble
between outdoor unit and
driver
BLINK OFF Outdoor EEPROM in trouble
BLINK ON Outdoor ambient
temperature too low
protection
BLINK OFF Compressor exhaust
temperature too high
protection
BLINK ON Outdoor ambient
temperature sensor in
trouble
BLINK OFF Compressor shell
temperature too high
protection
Anti‑freeze protection
with cooling or overload
protection with heating in
PFC protection
DC compressor start failure
OFF BLINK Compressor drive in trouble
OFF BLINK Outdoor fan motor locked
rotor protection
Outdoor coil anti‑overload
protection with cooling
Compressor pre heating
process
Chip in outdoor board in
trouble
The root cause is may be one of the following
a.the outdoor control board is short circuited.
b.the drive board is short circuited.
c. other components are short circuited.
a. the connection wires loose.
b.the outdoor board or drive board failed.
a.the EEPROM chip is loose.
b.the EEPROM chip inserted incorrectly.
c.the EEPROM chip failed.
Outdoor ambient temperature too low.
a.the compressor exhaust temperature sensor
failed.
b.the unit refrigerant charge is low
a.the outdoor ambient temperature sensor
connect loose
b.the outdoor ambient temperature sensor
failed.;
c.the outdoor control board failed.
a.the compressor exhaust temperature sensor
connect loose
b.the unit refrigerant charge is low
a.the indoor coil temperature sensor connector
loose;
b.the indoor coil temperature sensor failed..
c.the indoor control board failed..
d. the refrigerant system is abnormal
a.the PFC failed.;
b.the outdoor drive board failed.
a.the outdoor drive board failed.;
b.the compressor failed.
a.the outdoor drive board failed.;
b.the compressor failed.
the outdoor control board failed.
a.the connection of the outdoor fan motor is
loose.
b.there is something block the outdoor fan.
c.the fan motor failed.
d.the outdoor control board failed.
a.the unit refrigerant charge is exccessive.
b.the outdoor fan motor failed.
c.the outdoor fan is broken.
d.the condensor is dirty.
e.the air inlet and air outlet of the indoor unit and
the outdoor unit is not normally
it is normal mode in cold weather
a.Using the wrong drive board;
b.Using the wrong compressor
c.