Sanyo 85464369098000, XMHX1252, XMHX1852, CHDZR09053, CHDZR14053 Possible cause of malfunction, Led

8-7. Meaning of Alarm Messages

Table of Self-Diagnostics Functions and Description of Alarm Displays

Alarm messages are indicated by the blinking of LED 1 and 2 (D72, D75) on the outdoor unit PCB. They are also displayed on the wired remote controller.

●Viewing the LED 1 and 2 (D72 and D75) alarm displays

LED 1	LED 2		Alarm contents
		Alarm display
Alternating		LED 1 blinks M times, then LED 2 blinks N times. The cycle then repeats.
		M = 2: P alarm	3: H alarm 4: E alarm 5: F alarm 6: L alarm
		N = Alarm No.
		Example: LED 1 blinks 2 times, then LED 2 blinks 17 times. The cycle then repeats.
			Alarm is “P17”.

( : Blinking)

Possible cause of malfunction			Alarm
			message
Serial	Remote controller is detecting	Error in receiving serial communication signal.
communication	error signal from indoor unit.	(Signal from main indoor unit in case of group control)	<E01>
errors		Ex: Auto address is not completed.
Mis-setting
		Error in transmitting serial communication signal.	<E02>
	Indoor unit is detecting error signal from remote controller (and system controller).		<<E03>>
	Indoor unit is detecting error	Error in receiving serial communication signal.
	signal from main outdoor unit.	When turning on the power supply, the number of connected	E04
		indoor units does not correspond to the number set. (Except R.C.
		address is “0”.)
		Error of the main outdoor unit in receiving serial communication	<E06>
		signal from the indoor unit.
	Improper setting of indoor unit or	Indoor unit address setting is duplicated.	E08
	remote controller.
		Remote controller address connector (RCU. ADR) is duplicated.	<<E09>>
		(Duplication of main remote controller)
	During auto. address setting,	Starting auto. address setting is prohibited.
	number of connected units does	This alarm message shows that the auto address connector CN100	E12
	not correspond to number set.	is shorted while other RC line is executing auto address operation.
		Error in auto. address setting. (Number of connected indoor units	E15
		is less than the number set.)
	When turning on the power	Error in auto. address setting. (Number of connected indoor units	E16
	supply, number of connected	is more than the number set.)
	units does not correspond to	No indoor unit is connected during auto. address setting.	E20
	number set.
		Main outdoor unit is detecting error signal from sub outdoor unit.	E24
	(Except R.C. address is “0”.)
		Error of outdoor unit address setting.	E25
		The number of connected main and sub outdoor units do not	E26
		correspond to the number set at main outdoor unit PCB.
		Error of sub outdoor unit in receiving serial communication signal	E29
		from main outdoor unit.
	Indoor unit communication error	Error of main indoor unit in receiving serial communication signal	E18
	of group control wiring.	from sub indoor units.
	Improper setting.	This alarm message shows when an indoor unit for multiple-use	L02
		is not connected to the outdoor unit.
		Duplication of main indoor unit address setting in group control.	<L03>
		Duplication of outdoor R.C. address setting.	L04
		Group control wiring is connected to individual control indoor unit.	L07
		Indoor unit address is not set.	L08
		Capacity code of indoor unit is not set.	<<L09>>
		Capacity code of outdoor unit is not set.	L10
		Mis-match connection of outdoor units that have different kinds of	L17
		refrigerant.
			Continued

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W-3WAY_ECO-i_US.indd 94 2008/02/14 18:07:27