Hunter Fan R410A manual Power transistor module

Page 26

Outdoor Unit controller failure diagnosis circuit diagram

FDCVA151~251 type

● Outdoor unit check points Check items with the *mark when the power is ON.

- 24 -

❇

Power Supply Check

 

Noise Filter Check:

 

DC

Reactor Continuity

Power

 

transistor module

 

 

 

 

 

Measure the power supply at L.N.

There should be continuity.

 

Check: 50 mΩ or higher,

check: Is there a short cir-

 

(It is normal if it is AC 220/240V.)

There should be no shorts between phases.

less than 100 mΩ.

cuit, open circuit or dam-

 

 

 

 

 

 

 

 

 

 

 

age? (See 160 page for the

 

 

 

 

 

 

 

 

 

 

 

check procedure.)

 

 

TB

F5

(20A)

 

 

Orange

 

 

 

 

 

 

 

 

L

 

Red

 

T21

 

 

 

 

 

 

 

 

 

 

 

 

 

T24

 

 

 

CM

 

 

 

N

 

White

 

T22

 

Gray

To indoor unit

 

 

 

 

 

 

 

T25

 

 

 

 

 

 

 

 

E

 

Y/NG

 

Sub PCB

Brown

 

 

 

 

 

 

 

 

 

 

 

(Noise filter)

T26

 

 

Red

White

 

Black

 

 

TB

 

 

 

 

T30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fuse Check: There should be

CNI1

T28

T27

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U

V

 

W

 

 

 

continuity.

 

 

 

 

 

 

 

 

 

 

 

 

 

Orange

Yellow

 

 

 

 

 

 

 

 

 

 

 

 

T6

T7

T8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CNI2 CNI3

T2

T4

 

 

Power transistor module

 

 

 

 

 

T1

T5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power transistor thermistor temperature and

resistance characteristics check

 

 

80˚C]

80˚C]

100

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

> =

 

 

<

 

 

 

 

 

< =

[T

 

T

80˚C

 

 

 

 

[T

(kΩ)

 

 

 

T >80˚C

 

(kΩ)

 

 

 

 

 

 

resistance

 

 

 

 

 

 

resistance

50

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

Thermistor

0

20

 

50

80

100

120

0

Thermistor

 

0

 

 

 

 

 

Temperature [ T ] (˚C)

 

 

 

CnTR

F2 (250V 20A)

Control PCB

F3 (250V 1A)

 

 

 

 

DC280V

1

2

3

4

6

 

When the outdoor

FM0

unit fan motor is

abnormal:

 

 

(Refer to page 157)

LED1

Red

LED1 (Red) Check

 

Fuse Check: There should be continuity.

Light continuously

: Normal

If faulty, replace the control PCB.

Keeps flashing :

EEV

 

1~3 time flash :

Refer to 131 page

 

Page 25 Page 27
Image 26
Page 25 Page 27
Contents FDA Series Split Systems FDA Series Multi Systems Page Index Evacuation procedure EvacuationIndi Refrigerant chargingHigh side Low side Cation CircuitNo-indication Selfdiagnosis function Check Indicator TableIndoor unit side E10 E16 E28 Indoor unit LED Outdoor unit LEDOutdoor unit side Wait Display sequence of error, inspection display lampTiming of error detection Error diagnosis procedures at the indoor unit side Recording and reset of errorProcedures of trouble diagnosis Indoor unit Outdoor unitParts layout on the indoor unit PCB Model FDT series Change by the jumper wireControl change switch SW5, SW9, SW10 Model Fden series Model Fdkn series Model Fdur series Drain motorCheck method when the error code is display Indoor unit Outdoor unitRed LED Time flash Stays OFF Green LED Keeps flashing Remote controller wire Is removedReplacement indoor Unit control PCB Approximately301~601 151~251Red LED Red LED Stays OFF Only case of FDTCases of other than FDT Green LED Stays OFF or LightsDefective indoor unit heat exchanger thermistor Error display e6Error display Detective return air thermistor Error display Drain trouble Error display Heating overloadAbnormal Temperature Detection Indoor unit heat exchanger temp. ˚CE10 Error displayError display e16 Fan motor abnormalities Only case of FDTA501, 601 typesWithin a period of 1 hour Only case of Fdkn Only case of 151~251 typesDisplay conditions Only case of 301 typeDetectivie remote controller PCB Error display e28 Directive remote controller thermistorAre characteristics Remote controller therm Replacement Detective reError diagnosis procedures at the outdoor units side Parts layout on the outdoor unit PCB FDCVA151~251 type Change by the jumper wireFunction of DIP switches SW5 Usually all turned OFF Change by the JA3Overcurrent Setting FDCA301~601 typePower transistor module E32 Error display Communications error during operationPower supply phases reversed Only case of 301~601 type Compressor overcurrent trouble Only case of 301~601 type E33Inverter primary current abnormal Only case of 151~251 type Error display e35 Cooling overload operation E34Pressor is stopped Error display e36 Discharge temperature errorAbnormal Temperature Detection 100 Error display e39 Defective discharge pipe thermistorUtes 80 CError display e42 Current cut Only case of 151~251 type Error display e40 63H1 operation Only case of 301~601 typeOpen phase at L3-phase of 52C primary side E48 Error display e52 52C Abnormal Only case of 301~601 typeE47 Inverter over-voltage trouble Only case of 151~251 typeInsufficient refrigerant volume E57Refrigerant circuit Did it improve? Replacement CompressorCould be causing Malfunction. IfPower transistor module including drive circuit check method Is the powerCheck abnormal operation data with the remote controller Remote controller Wired remote controller Pull the cover downward to open itRemote controller unit functions Indoor unit functions I/U FunctionFunction setting method When Function is selectedWhen I/U Function is selected Press the ON/OFF buttonChanging the remote controller’s temperature setting range Starting the Cooling Test Operation Cooling Test Operation ProcedureCanceling the Cooling Test Operation Checking Operation DataChecking the state of the unit in operation Setting SW5-1, SW5-2 on-siteTest run Test run method HeatingIndication board Fden Series Fdkn SeriesWireless remote controller Page Installation of this equipment must comply with all NATIONAL, State and Local Codes
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