Error Code 19 - Friedrich Floating Air Pro-Premiere FPHW091 Service & Parts Manual

Error Code 19

77
TROUBLESHOOTING
Error code 19
Compressor drive in trouble
Is fastening screw
of IPM fastened?
Yes
Check the wiring
between main
control board
and compressor
Yes
Check the
IPM
Yes
Check the outdoor fan is
fault and the outdoor
unit ventilation
Yes
Check the compressor
1.The resistance of the
windings is correct?
2.The resistance between
the windings and ground
is correct?
Yes
Replace the outdoor
control board
test point:
Check the screw of IPM fastening
No
fastening
Corrent the connection
No
or replace the wires
and connectors
Change the control
No
board or replace it
Replace the fan or the
No
outdoor unit
ventilation
The compressor is
No
faulted,change the
compressor
Fig. 713