Samsung MH026FPEA Training Manual page 91

Troubleshooting
2. - On this mode the controller will ignore the manual address number set on the rotary switch on the indoor PCB.
2. - To confirm the indoor address number assigned by this mode, use "TEST MODE" and the address number will be displayed on
the LED display on the indoor unit.
I In case of MANUAL ADDRESSING mode. (SW02-1:OFF)
2.
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2. Checking the address number correctly on each indoor unit PCB.
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2. - "PIPE CHECK MODE" is also able to use.
G If Error code is displayed on indoor or outdoor LED, check as follows;
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1. Confirm if SW01 setting number and the number of indoor unit installed are
the same.
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2. If some indoor unit has no power, confirm power cable connection,
especially miss-wiring between communication cable and power cable.
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3. If error code E101 or E185 is displayed on indoor unit LED, check
communication wire and power wire connection.
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4. If error code E460 is displayed on outdoor unit LED, AC power line could be
connected to outdoor communication terminal, F1 & F2. So check the wiring
not only communication line but also power line.
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5. If error code E401, E404 or E416 is displayed on outdoor unit LED, check
PIPE connection also. Because gas flow to a different indoor unit will case
these error.
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6. In case of communication error by wrong wiring on one indoor unit, all indoor
units display a error code. In this case, correction at the wrong point could
solve all indoor unit error display.
90
9K or 12K BTU
indoor PCB
Address
number
switch
18K BTU indoor PCB
Samsung Electronics