Hunter Fan R410A manual Error display e36, Discharge temperature error, Display conditions

6

Error display : e36

[Discharge temperature error]

	Indoor unit			Outdoor unit
Red LED		Stays OFF	Red LED		1 time flash
Green LED		Keeps flashing	Green LED		Keeps flashing	Check the unit side.

Note (1) The green LED in the outdoor unit is used in the FDCA301 ~ 601 models only.					During cooling: Is FM0 operating?
					During heating: Is FM1 operating?
Is the		Discharge	Check the unit side.		Are	service		valves	(both liquid,
					gas)	fully		opened	during both
discharge pipe ther-	YES	temperature error?
			Insufficient refrigerant		cooling and heating.
mistror characteristics		(At cooling/heating
normal?		operation)	Charge the refrigerant (measure)		Is the installation space of indoor/
					outdoor unit adequate?
			Is it the oveload operation?
NO					Is there any short circuit air flow
					for indoor/outdoor units?
Discharge pipe thermis-		Is discharge temperature
tor replacement		control normal?		If the discharge pipe temperature exceeds the set value,
				the compressor’s speed (151~251) or the expansion
Is the unit		Abnormal temperature sensed		valve’s opening angle (301~601) is controlled to prevent
normalized		Is the (actual measurement) normal?		the discharge pipe temperature from rising.
NO			NO	Compressor control			The compressor’s capacity
		Defective outdoor unit PCB					is lowered (Each minute the
							speed is reduced (151~251).
		Replacement						Expansion valve control
					Hold
● Display conditions								(301~601)
If the discharge temperature is as shown at left 2 (5) times within 60				Release
minutes, or continuously for 60 minutes, including when the com-				151~251 type	80		90
pressor is stopped.				301~601 type	90		100
				Discharge pipe temperature (°C)

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

Abnormal Temperature Detection

151~251 type			301~601 type
		Error stop			Error stop
	Operoble			Operoble
80		105	80		121
	Discharge pipe temp. (°C)			Discharge pipe temp. (°C)

Thermistor resistance

● 151~251 type								● 301~601 type
Temperature-resistance characteristics								C]80°		Temperature-resistance characteristics
of discharge pipe thermistor (Tho-D)										of discharge pipe thermistor (Tho-D)					C]80°
100									100					10
								<			T< 80˚C				>
								)(kΩ[T					T >80˚C		)(kΩ[T
50								resistance	50					5	resistance
00	20	40	60	80	100	120	140	Thermistor	0	0	50	80	100	0	Thermistor
		Temperature [T] (°C)									Temperature [T] (°C)

7

Error display : e37 [Defective outdoor unit heat exchanger 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	Are the outdoor unit
unit heat exchanger			heat exchanger thermistor
thermistor connector			characteristics OK, is there
OK?			any broken wire?
	NO		NO

Defective outdoor unit

Repairheat exchanger thermistor Replacement

●Display conditions

If the temperature sensed by the thermistor is –30ºC or lower con- tinuously 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) minutes.

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

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Defective outdoor unit control YES PCB Replacement (Defective

outdoor unit heat exchanger thermistor input circuit)

Outdoor unit heat exchanger thermistor (ThO-R)

Resistance temperature characteristics

	15
(kΩ)	10
Resistance
	5	5kΩ at 25°	C

0 10 20 30 40 50

Temperature (°C)