Sanyo CHDXR07263, CHDXR09663, CHDX09663, CHDX07263 Possible cause of malfunction Operation

1. Contents of Remote Controller Switch Alarm Display

W-2WAY ECO-i SYSTEM Trouble Diagnosis

			ON: Blinking:							OFF:
				Wired					Wireless
				remote
					remote controller
				control
							receiver display
				display
	Possible cause of malfunction							Operation			Standby for heating
										Timer
Thermistor fault	Outdoor unit	Compressor intake temp. sensor (suction temp)		F12
							Operating and timer
		High-pressure sensor		F16
							lamps blinking
		Low-pressure sensor		F17			altemately
		Heat exchanger 2 liquid temp. sensor		F24
		Heat exchanger 2 gas temp. sensor		F23
Ceiling panel connection failure				<<P09>>
							Timer and heat
							ready lamp blinking
Protective	Indoor unit	Thermal protector in indoor unit fan motor is activated.		<<P01>>
							altemately
device		Float switch is activated.		<<P10>>
		Fan inverter protection function activated.		<<P12>>
	Outdoor unit	Oxygen (O2) gas sensor activated.		P14
		Compressor 1 (INV) discharge temp. trouble		P03
		High-pressure switch or Overload Protector (OLR)		P04
						Operating and heat
		Reverse phase (missing phase) detected.		P05		ready lamp blinking
		DCCT, ACCT overcurrent (compressor less than 80 Hz)		P16		altemately
		Compressor 2 (constant speed) discharge temp. trouble		P17
		Outdoor unit fan trouble		P22
		DCCT, ACCT over current (80 Hz or more)		P26
		INV compressor start failure. (Missing phase or lock alarm)		P29
Failure of nonvolatile memory IC (EEPROM) on indoor unit control PCB
						Operating and timer
				F29		lamp blinking
						simultaneously
Failure of nonvolatile memory IC (EEPROM) on outdoor unit control PCB
							Operating and timer
				F31			lamp blinking
							simultaneously
Protective	Overload current detected.	Compressor 2 (constant speed)		H11
device	Lock current detected.	Compressor 2 (constant speed)		H12
	No current detected when	Compressor 1 (INV)		H03
	compressor was ON.	Compressor 2 (constant speed)		H13
	Discharge temp. sensor trouble	Compressor 2 (constant speed)		H15
	Outdoor unit protection	Low-pressure trouble		H06
	Outdoor unit protection	HIC trouble alarm		H31
							Timer lamp blinking
Low oil alarm				H07
Connection failure of oil detection sensor		Compressor 1 (INV)		H08
		Compressor 2 (constant speed)		H27
Fusing of electromagnetic contact (Current detected when compressor was OFF)				CHECK	(No display changes)
Automatic backup operation				only blinking

5

<< >> alarm indication: Does not affect the operation of other indoor units.

<> alarm indication: In some cases may affect the operation of other indoor units.

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