Heat Controller VMC24SB-1/VMH24SB-1 service manual Description Cause of error Indoor fan is locked

Page 53

 

 

Part 4 Trouble Shooting

 

 

 

 

Error code

Description

Cause of error

 

 

 

 

 

8

Indoor fan is locked

• Indoor fan is locked or separated

 

(BLDC fan model only)

• Fan connector is not connected to indoor pcb assembly

 

 

• Defective DC-fan driving circuit

 

 

 

 

 

Check flow

Indoor fan is rotating ? (1)

No

Check indoor unit

-remove obstacles in indoor unit

-fan assembled correctly.

YES

Indoor fan is rotating ? (2)

No

Check soldering state of CN-Motor1 & assembling state of DC Fan connector

YES

DC–fan driving circuit is right ?

No

Check DC Fan Driving circuit (Soldering state & Direction)

-R01F~R09F, C01F~C03F, IC01F~IC03F, Q01F~Q02F, ZD01F

Error code

Description

Cause of error

 

 

 

9

Outdoor fan is locked

• Outdoor fan is locked by an obstacle (ex : branch of tree, bar…etc)

(BLDC fan model only)

• Fan connector is not connected to outdoor pcb assembly

 

• Defective in DC-fan driving circuit

 

 

 

Check flow

YES

Outdoor fan is rotating ? (1)

No

Check outdoor unit

-remove obstacles in outdoor unit

Outdoor fan is rotating ? (2)

No

Check connector is not connected to outdoor pcb assembly (CN-FAN2)

YES

DC–fan driving circuit is right ?

No

Check DC Fan driving circuit (Soldering state & Direction)

-R01F~R05F, C01F~C03F, Q01F~Q04F, ZD01F

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Only for training and service purposes

Image 53
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 & ControlsHeating Mode Heatpump Only Basic Mode ControlsCooling Mode Auto changeover operation Heatpump Only Intake air Temp Setting TempHealthy Dehumidification operation 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 Function Heat sink sensor failure errorHeat sink temperature control 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 Compressor working Constant Compressor only 30kBtu/h ModelThere can be two situations 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 12kBtu/h Model Error IndicatorSelf-diagnosis Function 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 ShootingCopper Comp pipe Troubleshooting CH21Comp Troubleshooting CH21, CH22 Troubleshooting CH23, CH28 Troubleshooting CH24, CH25 ‘B’ Troubleshooting CH26, CH27Troubleshooting CH32, CH33, CH40 Troubleshooting CH41, CH44, CH45, CH46, CH47, CH65 Condenser/Suction Pipe Troubleshooting CH51, CH60Inverter/Constant Troubleshooting CH61, CH62 Heat CONTROLLER, INC

VMC12SB-1/VMH12SB-1, VMC18SB-1/VMH18SB-1, VMC24SB-1/VMH24SB-1, VMC09SB-1/VMH09SB-1, VMC30SB-1/VMH30SB-1 specifications

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