Unit Does Not Run - Friedrich FPHW091A Service & Parts Manual

Unit does not run

Switch on the
power supply
Does the screen
display normally?
No
Is the fuse
(3.5A/250V)
blown?
No
Are the wires
poorly
connected?
No
Check the input
voltage and output
voltage correct or not
No
Indoor control board is fault
Replace it.
68
TROUBLESHOOTING
Yes
Yes
Make sure all wires
Yes
are connected
correctly
Yes
Replace the
display board
Fig. 702
Does it receive the
Yes
remote controller
signal?
No
Is the remote
No
controller in good
condition?
Yes
Replace the
display board
Replace the
indoor control
board
Is the remote
controller
setting right?
Yes
Check the code
Replace the batteries
Retry remote operation.
If not good,replace
remote controller