Samsung MH026FNCA service manual Technical Bulletin

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

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Option Code Procedure for MH Neo Forte

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 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		MH026FNCA				MH035FNCA				MH052FNCA
	ON TIMER		OFF TIMER		ON TIMER		OFF TIMER		ON TIMER		OFF TIMER
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
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 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

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