Hunter Fan R410A manual Open phase at L3-phaseof 52C primary side

10

Error display : e40 [63H1 operation] (Only case of 301~601 type)

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

Is the 63H1 operating?

NO

YES

While the 63H1 is operating

1.During Cooling

•Is the outdoor unit fan motor running?

•Is there a short circuit in the outdoor unit?

• Is there enough space for inlet and outlet?

2. During Heating

• Is the indoor unit heat exchanger thermistor separated

from the sensing case?

• Is the filter clogged?

The outdoor unit control PCB

is faulty. (The 63H1 input circuit is faulty.) Replace

3. During Cooling and Heating

• Is the refrigerant overcharge?

• Is the service valve fully open?

[Open phase at L3-phase of 52C primary side]

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

	52C	(1)	YES
primary side L3 phase
				Repair
	open?			Notes (1) Also check if there is voltage at the L3 phase on the 52C primary
	NO			side, but no voltage on the secondary side (coil wire disconnection
			(2)
				or faulty contacts).
The outdoor unit control PCB
				(2) If there is voltage at the L3 phase on the 52C primary side and it is
is faulty.	Replace			not abnormal, the outdoor unit control PCB is faulty.

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Error display : e42 [Current cut] (Only case of 151~251 type)

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

Is the power

supply voltage

proper?

NO

Check the power supply.

YES		Is the service	YES
	valve fully open?
		NO
		Open it fully.

Is the high	YES
pressure during operation
proper?

NO

Check the refrigerant level and refrigerant circuit.

Check the compressor's insulation YES resistance and winding

resistance.

NO

Replace the compressor.

● Display conditions

If the inverter’s output current ex-	Check the
		NG
ceeds the set value, the compres-	power transistor module
sor stops. After a 3-minute delay, it	(See page 160)
restarts, but if this occurs 3 times	OK

within 20 minutes.
• Is the installation space for the indoor and outdoor	YES
units proper?

•Is there a short circuit in the indoor or outdoor units?

•During cooling: Is FMo operating?

Is the service valve fully open?

•During heating: Is FMI operating?

Replace the outdoor unit control PCB.

Does it return to

normal if the power NO supply is reset

(2 of 3 times)?

YES

Replace the outdoor unit control PCB.

Is the service valve fully open?

Is the filter clogged?

•Is liquid flowing back to the compressor?

•Is the compressor making abnormal noises?

It may be malfunction due to transient noise. If there is a noise source nearby, take measures to eliminate it.

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