Samsung AD18B1C09, UD26B1C2, UD18B1C2, AD26B1C13 If the lamp is not flickering, check as follows

If the lamp is not flickering, check as follows:

A. Check the display part of indoor unit of each unit (A,B) after outdoor unit PCB switch S/W-A is on. A. Check the status of each unit indoor room select switch.

A. (Adjust the select switch suitable to the unit A, B.)

A. - A unit : STANDARD LED on, TIMER LED flickering

A. - B unit : STANDARD LED on, TIMER and NATURE LED flickering

A. - C unit : STANDARD LED on, TIMER and NATURE, POWER LED flickering (In case of triple split multi air conditioner)

UNIT	STANDARD	TIMER	NATURE	POWER
A
B
C
	Lamp ON	Lamp OFF	Lamp Flasher

4.Check the test operation status by pressing the PCB switch

4.S/W-A and S/W-B of outdoor unit.

4.• Check the operation status by pushing the switch one at time.

4.• Perform the test operation only for the unit selected last.

4.• Check the pipe pressure and the other operation status during the test operation.

4.• Check items when the error occurs during the test operation (each unit)

-Check there is enough refrigerant.

-Check pipe connections.

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