Indoor Unit - Friedrich Floating Air Pro-Premiere FPHW091 Service & Parts Manual

Diagnostic Codes

Indoor Unit

The the indoor display board will show the error code automatically when the unit has the following trouble:
Error Power Timer
Code 1 2
EA
When the unit has the following trouble and the compressor stops running, press the sleep button on the remote controller for
10 times in ten seconds and the 7‑segment tube of the display board will show the error code as the following, if two malfunction
happened at the same time, it need press the sleep button for 10 times again, the LED will show the other error code.
Refer to the remote controller which the sleep key can set into 4 different combination ways , when using to check the error codes
only takes effect for pressing the sleep key 10 times in ten seconds instead of 4 times.
NOTE: If the troubleshooting inquiry display by 7‑segment tube, then the error code will be displayed, otherwise only the LED of the
display board can show.
Error Power Timer
Code 1 2
0
1 OFF BLINK
2 OFF BLINK
5 ON BLINK
6 ON BLINK
7 ON BLINK
8 ON BLINK
59
TROUBLESHOOTING
Running Sleep
3 4 Content
the error code will display
when the communication
between display board and
control board is interrupted
Running Sleep
3 4 Content
Normal
OFF OFF The failure for temperature
sensor of outdoor coil
ON OFF Compressor exhaust
temperature sensor in
trouble
OFF OFF IPM module protection
OFF ON AC voltage higher or lower
protection
ON OFF Communication failure
between the indoor unit and
outdoor unit
ON ON Current overload protection
The root cause is may be one of the
following
a. The connection between the display
board and control board is loose.
b. The indoor control board failed.
c.The wiring of the display board failed
The root cause is may be one of the following
a. The outdoor temperature sensor loose
b. The outdoor temperature sensor
c. The indoor control board
a. the compressor exhaust temperature sensor
connector loose.
b.the compressor exhaust temperature sensor
failed.
c.the outdoor control board failed.
a.The IPM board failed.
b.The outdoor fan is broken.
c.The outdoor fan motor failed.
d.The outdoor fan has been blocked.
e.The condenser is dirty.
a. the supply voltage is higher or lower than
normal.
b.the inner supply voltage of the unit is higher or
lower than normal.
a.the communication cable connect loose.
b. the connection between the filter board
and the terminal is incorrect or loose
c.the communication cable failed.
d.the connection between the filter board and the
outdoor control board is incorrect or loose.
e.the indoor control board failed.
f.the PFC board failed.
g.the power board failed.
h.the outdoor control board failed.
a.the fan motor runs abnormally.
b.the condensor and evaporator is dirty.
c.the air inlet and outlet are abnormal.
failed.
failed.