Hunter Fan R410A manual Only case of Fdkn Only case of 151~251 types, Display conditions

SOnly case of FDKN

Only case of 151~251 types

Abnormal data check with remote controller

After check reset,

fan runs on Me.

NO

Fan ON?

3 (Black) is GND.

YES

CNM

NO

NO

Check the

1 and 3 (Red – Black)

Replacement indoor

Was it reproduced?

unit control PCB

circumstances.

DC280V?

YES

YES

YES

3 (Black) is GND.

CNM

NO

Secondary

When the

(1)

4 and 3 (White-Black)

side of transformer

NO

motor is turning, does

(red-red) 14V

the voltage at CNM 6 (Blue)

DC15V?

or more

fluctuate between

YES

NO

DC 0 ~ 15 V?

Note (1) CNM 3

(Black) is GND.

Replacement transformer

YES

Does the

NO

fan motor turn

Detective fan motor

smoothly by

hand?

Replacement indoor

unit control PCB

YES

(2)

Is the voltage

YES

at CNM 5 (Yellow) DC 1V

● Display conditions

or higher?

(Black) is GND.

Note (2) CNM 3

NO

If an indoor unit fan motor’s speed is detected to be less than

200 rpm continuously for 30 seconds, the fan motor stops for 2

Replacement indoor

unit control PCB

seconds. After 2 seconds, it starts again, but this occurs 4 times

within a period of 1 hour.

Only case of 301 type

3 (black) is GND.

CNM	YES
1 and 4 (Red-Blue)
DC 0~60V ?
NO		Replacement fan
		motor
Turn the power off and wait
a short time (30 min. ~ 1 hr.)
YES

After check reset,

fan runs on Me.

NO
Fan ON ?
	YES	NO
Was it reproduced?
NO
	YES
When (1)
the motor is turning,		NO
does the voltage at CNM 5

(White) fluctuate between DC 0 ~ 15 V?

Check the

circumstances.

Replacement fan motor

When tried again,	YES
the fan goes ON.

YES

Note (1) CNM 4 (Blue) is GND.

YES	Check the
	circumstances.
Replacement indoor
unit control PCB

Replacement indoor

unit control PCB

●Display conditions

If an indoor unit fan motor’s speed is detected to be less than 200 rpm continuously for 30 seconds, the fan motor stops for 2 seconds. After 2 seconds, it starts again, but this occurs 4 times within a period of 1 hour.

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