Do you think the mistake is in the rule?
lirc.apply("harman_kardon", "KEY_POWER", logName)
This makes sense but I thing the main problem has to do with the lirc server, which does not react with the command
echo “SEND_ONCE harman-kardon KEY_F4” | nc localhost 8765
Which Version of Lirc you use on the Raspberry … since Version (I think) 0.9 the config change … I run in the same Problems by using a Tutorial from Google … there was almost the old config.
This is my Config Script: (Perhaps this helps you to fix you Problems)
#Lirc Konfiguration
echo "lirc_dev" >> /etc/modules
echo "lirc_rpi gpio_out_pin=17 gpio_in_pin=18" >> /etc/modules
echo "dtoverlay=lirc-rpi,gpio_out_pin=17,gpio_in_pin=18" >> /boot/config.txt
>/etc/lirc/hardware.conf
cat <<EOF > /etc/lirc/hardware.conf
# /etc/lirc/hardware.conf
#
# Arguments which will be used when launching lircd
#LIRCD_ARGS=""
#LIRCD_ARGS="--uinput"
LIRCD_ARGS="-uinput --listen"
#Don't start lircmd even if there seems to be a good config file
#START_LIRCMD=false
#Don't start irexec, even if a good config file seems to exist.
#START_IREXEC=false
#Try to load appropriate kernel modules
LOAD_MODULES=true
# Run "lircd --driver=help" for a list of supported drivers.
DRIVER="default"
# usually /dev/lirc0 is the correct setting for systems using udev
DEVICE="/dev/lirc0"
MODULES="lirc_rpi"
# Default configuration files for your hardware if any
LIRCD_CONF=""
LIRCMD_CONF=""
EOF
>/etc/lirc/lircd.conf
cat <<EOF > /etc/lirc/lircd.conf
# Populated config files can be found at http://sf.net/p/lirc-remotes. The
# irdb-get(1) and lirc-setup(1) tools can be used to search and download
# config files.
#
# From 0.9.2 config files could just be dropped as-is in the lircd.conf.d
# directory and be included by this file.
include "lircd.conf.d/*.conf"
EOF
>/etc/lirc/lirc_options.conf
cat <<EOF > /etc/lirc/lirc_options.conf
# These are the default options to lircd, if installed as
# /etc/lirc/lirc_options.conf. See the lircd(8) and lircmd(8)
# manpages for info on the different options.
#
# Some tools including mode2 and irw uses values such as
# driver, device, plugindir and loglevel as fallback values
# in not defined elsewhere.
[lircd]
nodaemon = False
driver = default
device = /dev/lirc0
output = /var/run/lirc/lircd
pidfile = /var/run/lirc/lircd.pid
plugindir = /usr/lib/arm-linux-gnueabihf/lirc/plugins
permission = 666
allow-simulate = No
repeat-max = 600
#effective-user =
#listen = [address:]port
#connect = host[:port]
#loglevel = 6
#uinput = ...
#release = ...
#logfile = ...
[lircmd]
uinput = False
nodaemon = False
# [modinit]
# code = /usr/sbin/modprobe lirc_serial
# code1 = /usr/bin/setfacl -m g:lirc:rw /dev/uinput
# code2 = ...
# [lircd-uinput]
# release-timeout = 200
EOF
>/etc/lirc/lircd.conf.d/remotes.conf
cat <<EOF > /etc/lirc/lircd.conf.d/remotes.conf
begin remote
name AppleTV
bits 8
flags SPACE_ENC|CONST_LENGTH
eps 30
aeps 100
header 9083 4430
one 604 1620
zero 604 519
ptrail 604
repeat 9084 2195
pre_data_bits 16
pre_data 0x77E1
post_data_bits 8
post_data 0x9A
gap 108064
toggle_bit_mask 0x0
begin codes
KEY_DOWN 0xB0
KEY_UP 0xD0
KEY_LEFT 0x10
KEY_RIGHT 0xE0
KEY_OK 0xBA 0x20
KEY_MENU 0x40
KEY_PLAYPAUSE 0x7A 0x20
end codes
end remote
EOF
Hey Kevin and thank you for your answer.
I’m running the latest version of lirc.
I edit my Answer. check my config Files 
Post your /etc/lirc/lircd.conf file… I think there is your Problem
Here is my Way of integrate lirc and other Commands of the Raspberry to Openhab
begin remote
name harman-kardon
bits 16
flags SPACE_ENC|CONST_LENGTH
eps 30
aeps 100
header 9002 4495
one 565 1672
zero 565 551
ptrail 560
repeat 9002 2255
pre_data_bits 16
pre_data 0x10E
gap 107861
toggle_bit_mask 0x0
begin codes
KEY_POWER 0x03FC
KEY_POWER2 0xF906
KEY_VOLUMEUP 0xE31C
KEY_VOLUMEDOWN 0x13EC
KEY_F 0x03FC
KEY_F1 0x4FB0
KEY_F2 0xCF30
KEY_F3 0x3FC0
KEY_F4 0xF708
end codes
end remote
There ist the Problem this is the Old lirc Config … 
Change the /etc/lirc/lircd.conf to
>/etc/lirc/lircd.conf
# Populated config files can be found at http://sf.net/p/lirc-remotes. The
# irdb-get(1) and lirc-setup(1) tools can be used to search and download
# config files.
#
# From 0.9.2 config files could just be dropped as-is in the lircd.conf.d
# directory and be included by this file.
include "lircd.conf.d/*.conf"
and the /etc/lirc/lircd.conf.d/remotes.conf to
begin remote
name harman-kardon
bits 16
flags SPACE_ENC|CONST_LENGTH
eps 30
aeps 100
header 9002 4495
one 565 1672
zero 565 551
ptrail 560
repeat 9002 2255
pre_data_bits 16
pre_data 0x10E
gap 107861
toggle_bit_mask 0x0
begin codes
KEY_POWER 0x03FC
KEY_POWER2 0xF906
KEY_VOLUMEUP 0xE31C
KEY_VOLUMEDOWN 0x13EC
KEY_F 0x03FC
KEY_F1 0x4FB0
KEY_F2 0xCF30
KEY_F3 0x3FC0
KEY_F4 0xF708
end codes
end remote
Reboot the Pi or restart the lirc Service!
ok, that was fast, shall I easily replace my /etc/lirc/lircd.conf with
>/etc/lirc/lircd.conf
# Populated config files can be found at http://sf.net/p/lirc-remotes. The
# irdb-get(1) and lirc-setup(1) tools can be used to search and download
# config files.
#
# From 0.9.2 config files could just be dropped as-is in the lircd.conf.d
# directory and be included by this file.
include "lircd.conf.d/*.conf"
?
Yes … and the Remote Data add to /etc/lirc/lircd.conf.d/remotes.conf
isn’t the server sending out fine though if your use irsend? Sounds like its not listening on 8765 to me. give this a go though, backing up any changes jic.
Ok what I did is following:
I removed my /etc/lirc/lircd.conf and made a new one with this content:
>/etc/lirc/lircd.conf
# Populated config files can be found at http://sf.net/p/lirc-remotes. The
# irdb-get(1) and lirc-setup(1) tools can be used to search and download
# config files.
#
# From 0.9.2 config files could just be dropped as-is in the lircd.conf.d
# directory and be included by this file.
include "lircd.conf.d/*.conf"
Then, I made a new directory ( I created it, because there was no directory) " /etc/lirc/lircd.conf.d" and made a new file remotes.conf:
begin remote
name harman-kardon
bits 16
flags SPACE_ENC|CONST_LENGTH
eps 30
aeps 100
header 9002 4495
one 565 1672
zero 565 551
ptrail 560
repeat 9002 2255
pre_data_bits 16
pre_data 0x10E
gap 107861
toggle_bit_mask 0x0
begin codes
KEY_POWER 0x03FC
KEY_POWER2 0xF906
KEY_VOLUMEUP 0xE31C
KEY_VOLUMEDOWN 0x13EC
KEY_F 0x03FC
KEY_F1 0x4FB0
KEY_F2 0xCF30
KEY_F3 0x3FC0
KEY_F4 0xF708
end codes
end remote
Then, I entered into the shell: sudo /etc/init.d/lirc stop and after that sudo /etc/init.d/lirc start.
Then, I tried: echo “SEND_ONCE harman-kardon KEY_POWER” | nc localhost 8765
Nothing happens 
And unfortunately, irsend SEND_ONCE harman-kardon KEY_POWER2 don’t work anymore now.
Yeah i would revert those changes. and start lirc again, test using the irsend to ensure lirc is able to send the correct ir codes.
The issues has to be with the way its started. Lets get the netcat command working first. Rule out anything openhab at this point. Just get lirc working on the network.
Is it running local to openhab and where your testing from?
Sorry, what do you mean exactly ?
i mean is lirc and openhab running on the same pi?
Oh, yeah, they do.
ok, now the command irsend SEND_ONCE harman-kardon KEY_POWER2 works again - I reverted all the changes.
The echo "SEND_ONCE … " does not work anyway…
Ok, run this command and post your results
netstat -lptn
Edit - should see something like this
tcp 0 0 0.0.0.0:8765 0.0.0.0:* LISTEN
That makes sense. Somewhere there the problem must be. I think I haven’t typed in the port explicit, can I do this any where ?
tcp 0 0 0.0.0.0:9001 0.0.0.0:* LISTEN -
tcp 0 0 0.0.0.0:139 0.0.0.0:* LISTEN -
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN -
tcp 0 0 0.0.0.0:445 0.0.0.0:* LISTEN -
tcp6 0 0 :::139 :::* LISTEN -
tcp6 0 0 :::5007 :::* LISTEN -
tcp6 0 0 :::8080 :::* LISTEN -
tcp6 0 0 :::22 :::* LISTEN -
tcp6 0 0 127.0.0.1:36537 :::* LISTEN -
tcp6 0 0 :::8443 :::* LISTEN -
tcp6 0 0 :::445 :::* LISTEN -
tcp6 0 0 :::9124 :::* LISTEN -
tcp6 0 0 127.0.0.1:8101 :::* LISTEN -