Hunter Fan R410A manual Error display e38, Defective outdoor air temperature thermistor

8

Error display : e38

[Defective outdoor air temperature thermistor]

	Indoor unit			Outdoor unit
Red LED		Stays OFF	Red LED		1 time flash
Green LED		Keeps flashing	Green LED		Keeps flashing

Note (1) The green LED in the outdoor unit is used in the FDCA301 ~ 601 models only.

Is the outdoor		YES	Is the outdoor
			air temperature thermistor
air temperature thermistor
connector connection			characteristics OK, is there
			no broken wire?
OK?
	NO			NO

Defective outdoor air

Repairtemperature thermistor Replacement

●Display conditions

If the temperature sensed by the thermistor is –30ºC or lower continu- ously for 5 seconds between 2 minutes and 2 minutes 20 seconds after the compressor goes ON, the compressor stops. After a 3 minute delay, the compressor restarts. If this state is detected 3 times in 40 (60) min-

utes.

Note (1) Values in ( ) show for the case of the 301~601 models.

YES	Defective outdoor unit control PCB
		Replacement (Defective outdoor air
	temperature thermistor input circuit)

Temperature-resistance characteristics of outdoor air temperature thermistor (ThO-A)

	400			40
°C]					°C]
(kΩ)[T<0	300			30	(kΩ)[T>0
resistance	200	T < 0°C		20	resistance
			T > 0°C
Thermistor					Thermistor
	100			10
	0	0	50	0
	---50
		Temperature [T](°C)

9

Error display : e39 [Defective discharge pipe thermistor]

	Indoor unit		Outdoor unit
Red LED		Stays OFF	Red LED	1 time flash
Green LED		Keeps flashing	Green LED	Keeps flashing

Note (1) The green LED in the outdoor unit is used in the FDCA301 ~ 601 models only.

Is the discharge		YES	Are the discharge		YES	Defective outdoor unit control
pipe thermistor			pipe thermistor characteristics			PCB	Replacement (Defective
connector connection			OK, is there no			discharge pipe thermistor
OK?			broken wire?			input circuit)
	NO			NO			Temperature-resistance
							characteristics of discharge
							pipe thermistor (ThO-D)

Repair	Defective discharge pipe		°C]	100					10	°C]
	thermistor	Replacement
			80							80
			<			T< 80°C				>
			)[T						T> 80°C	)[T
			(kΩ							(kΩ
● Display conditions			resistance	50					5	resistance
If the temperature sensed by the thermistor is –10ºC or lower con-
tinuously for 5 seconds between 10 minutes and 10 minutes 20			Thermistor	0					0	Thermistor
goes ON, the compressor stops. After a 3 minute delay, the com-
seconds (2minutes and 2minutes 20seconds) after the compressor
pressor restarts. If this state is detected 3 times in 40 (60) minutes.				0	20	50	80	100	120
Note (1) Values in (	) show for the case of the 301~601 models.					Temperature [T] (°C)

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