Sanyo SAP-CMRV1426EH-F, SAP-CMRV1926EH service manual Trouble Diagnosis of Each Part

8-4. Trouble Diagnosis of Each Part

8-4-1. Problems of Each Part and Inspection Points

For details about the inspection points, refer to the Inspection Points for Each Part.

	Indoor unit					Outdoor unit				Others
Problems	lampOperationblinking.	lampOperationdoes not illuminate.	dosefanIndoornot turn.	doesunitOutdoornot operate.	dosefanOutdoornot turn.	doesvalveway-4 not operate. The operate.	compressorThestops on occasion. The increase.	high,	operationDefrostdoes not occur. The not	Does performance	Does performance
doesunitIndoornot operate.								The however
							does	is	valve
						does		temperature air		or	or
						not	not	occurs.operation	does	inadequate.cooling	inadequate.heating
points						(only)	speed	defrost	expansionelectric	is	is
Inspection						compressor	compressor	outdoor	operate.	coolnot	heatnot

Self-Diagnostics check

No. of Inspection Points for Each part

Indoor unit

Indoor controller (control unit)

Indoor fan motor

Room temperature sensor

Heat exchanger temperature sensor

Inter-unit cable

Switch circuit board

Outdoor control circuit(1) board

Diode module

HIC

Electrolytic capacitor

Fuse

unit	Compressor
Outdoor
	Compressor protective
	sensor
	Outdoor fan motor
	4-way valve
	Coil thermistor
	Electric expansion valve
	Branch tubing
	temperature sensor
Others	Breaker
	Refrigerant gas pressure

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

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