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TECHNICAL BULLETIN
Technical Bulletins are produced to provide information not contained in the manuals or to update currently
published technical information on the Samsung line of Mini splits
published technical information on the Samsung line of Mini splits
This bulletin is on :
Know this
The Option codes shown in the Service manual have been REVISED
The correct option code sequence and recommended procedure is shown below
Option Code Procedure for MH Neo Forte
The correct option code sequence
,
and recommended procedure is shown below
Option codes are required if ALL of the Indicator lights on the Indoor unit are blinking, the PCB has
been replaced or the Indoor and Outdoor units are not communicating
Symbol
Auto 2 7 0 0 2 7 0 0 2 6 0 0
Cool 4 0 0 0 4 0 0 0 4 0 0 0
MH026FNCA MH035FNCA MH052FNCA
ON TIMER OFF TIMERON TIMER OFF TIMER ON TIMER OFF TIMER
Cool
4
0
0
0
4
0
0
0
4
0
0
0
Dry 2 4 1 0 2 6 1 0 2 9 1 0
Fan 2 2 0 0 2 2 0 0 2 2 0 0
Heat 1 A 0 0 4 D 0 0 8 F 0 0
Step 1 Make sure the Indoor unit is turned OFF. At the Outside unit turn off the power supply,
wait for 1 minute for the Outdoor unit to completely power down, then re-apply power to the system
Step 2 Remove the batteries from the remote, wait 10 secs then hold down BOTH the UP & DOWN temperature
arrow buttons. While holding down the buttons re-insert batteries
Step 3 An arrow should appear next to the Auto mode graphic, with 00 and the
ON timer icon on the screen If no display appears repeat Step 2
Step 5 Using the DOWN arrow key, press it the correct number of times to scroll
the first digit in the code display will change 0 through 9ABCDEF
th
e
fi
rs
t di
g
it i
n
th
e co
d
e,
di
sp
l
ay w
ill
c
h
ange
0
,
th
roug
h 9
,
A
,
B
,
C
,
D
,
E
,
F
Once the first digit is programmed, then use the UP arrow key to program
the second digit using the same method
Step 6 Press the mode button, the arrow will move down to the next symbol, enter
the digits required. Repeat until ALL the code above is entered
Ste
p
7 Press the MODE button a
g
ain
,
the OFF timer icon will dis
p
la
y,
DO NOT
Step 7
Press the MODE button again, the OFF timer icon will display, DO NOT
enter the code again, press the MODE button 5 more times to return to the
ON timer icon, then check the code entered against the above. Once
checked use the MODE button to scroll through the OFF timer section
Step 8 Point the remote at the Indoor unit, and press the POWER button 5 times
to inject the code into the unit. Unit Ding's to show code has been accepted
Remove batteries, wait 10 secs and re-insert batteries normally
Step 9 Do not turn Indoor unit on using remote, instead go to the Outdoor unit
Press the K2 Button THREE times to get the unit operating in the test mode
Once the Indoor unit is making Condensate
Press the K3 Button to take the unit out of the Test mode
Restart unit using the remote, set to the required temperature and mode
Tech Bulletin - Option Codes FJM MH FNCA Neo Forte #1 Jun-08