Heat Controller VMC09SB-1/VMH09SB-1 Self-diagnosis Function, Error Indicator, 12kBtu/h Model

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Part 4 Trouble Shooting

7. Self-diagnosisFunction

■Error Indicator

•The error indicator assists with self-diagnoisis of the air conditioner and identifies if there is any trouble.

•The error indicator location is near the ON/OFF button by the LED on the evaporator and will signal as shown in the table below.

•If more than two errors occur simultaneously, primarily the highest severity error code is displayed.

•After error an occurrence, the error is cleared, the error LED is also cleared, simultaneously.

•To operate again on the occurrence of error code, be sure to turn off the power and then turn on.

•The error codes are different for various models

■9, 12kBtu/h Model

Error

Error Indicator

Cause of Error

Display

Indoor

Code

Indoor

Outdoor

Operation

1

1 time

1time

1time

1time

1time

• Indoor Temp. sensor error

O

3 sec

3 sec

3 sec

3 sec

- Sensor open or short

ON

2 times

2 times

2 times

2 times

• Outdoor Temp. sensor error

O

O

ON

2

3 sec

3 sec

3 sec

- Sensor open or short

4 times

4 times

• Heat Sink sensor error

4

- Sensor open or short

O

O

ON

3 sec

3 sec

- Heat Sink temp is over 95˚C

(203˚F)

5

5times

5times

• Communication error

O

O

OFF

3 sec

3 sec

6

6times

6times

• DC Peak error

O

O

SHUT

3 sec

DOWN

7

7times

7times

• Over current error (CT2)

O

O

SHUT

DOWN

3 sec

8

8times

8times

• Indoor fan lock error

O

OFF

3 sec

(BLDC fan model only)

9

9times

9times

• Outdoor fan lock error

O

O

OFF

(BLDC fan model only)

3 sec

10

10 times

10 times

• Discharge pipe thermistor is

O

O

ON

3 sec

short or open.

(4 LED Model)

- 45 -

Only for training and service purposes

Image 45

Contents Heat CONTROLLER, INC Contents Part 1 General Information Be sure not to do Be sure to follow the instruction Safety PrecautionsPart 1 General Information Inspections after Repair Part 2 Functions & Controls Category Function Description Remark List of Functions & ControlsBasic Mode Controls Cooling ModeHeating Mode Heatpump Only Intake air Temp Setting Temp Healthy Dehumidification operationAuto changeover operation Heatpump Only Energy saving operation in cooling mode Special Mode ControlsJet Cool operation Jet Heat operation Heatpump OnlyUtility Functions Auto cleaning operationForced operation Heat/pump Model Cooling/only ModelSleep mode Auto control Air volume controlSleep timer operation for cooling cycle Natural Air ControlAuto WindAuto restart Sleep timer operation for heating cycle Heatpump OnlyFive Seconds Stand-by fan Protection Functions & ControlsTwo Minutes Stand-by comp Hot start Heatpump OnlyCompressor Preheating Heatpump Only Outdoor Temperature Running Time secSump Heater Control 9, 12kBtu/h Model Only Heatpump Only 1 9,12kBtu/h ModelAutomatic defrost Heatpump Only 2 18,24,30kBtu/h Model Starting the defrosting operationControl algorithm of defrost completion Defrosting Control AlgorithmInverter Power Relay ControlOverheating Protection Power Module Heat sink sensor failure error Heat sink temperature controlFunction CT1 control Total Current Control Over Current ProtectionCT2 control Model KBtu/h Cooling Heating11A 12A 14A 15.5A Discharge Pipe Temp Control DC Peak controlInverter Compressor 18,24,30kBtu/h Model Constant Compressor only 30kBtu/h Model There can be two situationsCompressor working 12.1 9,12kBtu/h Model Low Ambient control12.2 18, 24, 30kBtu/h Model Model Mode-in Condition Mode-out ConditionOil equalizing control30kBtu/h Model Oil return control30kBtu/h Model Heatpump OnlyOperating Contion Operation ProcessPart 3 Test Run Check before Test Run Test Run Flow chart Test Run DetailCheck before Test Run Start Test Run Flow chartTest Run Detail Pump Down ProcedureSettlement of outdoor unit Evaluation of the performancePart 4 Trouble Shooting Way Valve Liquid Side Way, 3-Way ValvePumping Down ProcedureAir purging of the charge hose Set the 2-way valve to the closed positionEvacuation Gas Charging After Evacuation Mount the valve stem nuts and the service port nutConnect the charge hose to the charging cylinder Purge the air from the charge hoseTrouble analysis Cycle Troubleshooting GuideProcedure Specification Remedy Electronic Parts Troubleshooting GuideTrouble Compressor/Outdoor Fan does not operate 9, 12kBtu/h Model Trouble When indoor Fan does not operate.9~30kBtu/h Model Error Indicator Self-diagnosis Function12kBtu/h Model Outdoor Error 18,24,30kBtu/h Model Indoor ErrorError code Descrition Red Green StatusCode ErrorTroubleshooting Guide9,12kBtu/h Model Description Cause of error Heat-sink Temp. is over Description Cause of error DC Peak Error Description Cause of error Over current Error Description Cause of error Indoor fan is locked Description Cause of error Discharge pipe temp. is Check Point Troubleshooting CH01, CH02, CH06Troubleshooting CH05, CH53 Part Trouble ShootingTroubleshooting CH21 CompCopper Comp pipe Troubleshooting CH21, CH22 Troubleshooting CH23, CH28 Troubleshooting CH24, CH25 ‘B’ Troubleshooting CH26, CH27Troubleshooting CH32, CH33, CH40 Troubleshooting CH41, CH44, CH45, CH46, CH47, CH65 Troubleshooting CH51, CH60 Inverter/ConstantCondenser/Suction Pipe Troubleshooting CH61, CH62 Heat CONTROLLER, INC

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