Heat Controller VMC24SB-1/VMH24SB-1, VMC09SB-1/VMH09SB-1 Troubleshooting Guide9,12kBtu/h Model

Page 48

Part 4 Trouble Shooting

Troubleshooting Guide(9,12kBtu/h Model)

Error code

Description

Cause of error

 

 

 

 

Indoor thermistor is short

• Indoor thermistor (sensor) is short or open

1

• Indoor thermistor (sensor) is not connected to the indoor pcb assembly

or open

• Damage or defect on the sensing circuit of indoor pcb assembly.

 

 

 

(R01H, R02H, R03H, R04H, C01H, C02H)

 

 

 

Check flow

YES

Indoor thermistor is connected to Indoor pcb assembly ?

Indoor thermistor is right ?

YES

Sensing circuit of indoor pcb is right ?

No

-Connect to CN-TH1 in indoor pcb assembly

No

Check Indoor thermistor

-Measure resistance of thermistor

(air : about 10kat 25°C(77°F), pipe : about 5kat 25°C(77°F)

No

-Check soldering state of R01H ~ R04H, C01H, C02H

Error code

Description

Cause of error

 

 

 

 

Outdoor thermistor is

• Outdoor thermistor (sensor) is short or open

2

• Outdoor thermistor (sensor) is not connected to the outdoor pcb assembly

short or open

• Damage or defect on the sensing circuit of outdoor pcb assembly.

 

 

 

(R03H~R06H, C02H, C03H)

 

 

 

Check flow

YES

Outdoor thermistor is connected to outdoor pcb assembly ?

Outdoor thermistor is right ?

YES

Sensing circuit of outdoor pcb is right ?

No

-Connect to CN-TH1 in outdoor pcb assembly

No

Check outdoor thermistor

-Measure resistance of thermistor

(air : about 10kat 25°C(77°F), pipe : about 5kat 25°C(77°F)

No

-Check soldering state of R03H ~ R06H, C02H, C03H

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Only for training and service purposes

Image 48
Contents Heat CONTROLLER, INC Contents Part 1 General Information Safety Precautions Be sure not to do Be sure to follow the instructionPart 1 General Information Inspections after Repair Part 2 Functions & Controls List of Functions & Controls Category Function Description RemarkBasic Mode Controls Cooling ModeHeating Mode Heatpump Only Intake air Temp Setting Temp Healthy Dehumidification operationAuto changeover operation Heatpump Only Special Mode Controls Energy saving operation in cooling modeJet Cool operation Jet Heat operation Heatpump OnlyAuto cleaning operation Utility FunctionsForced operation Heat/pump Model Cooling/only ModelAir volume control Sleep mode Auto controlSleep timer operation for cooling cycle Natural Air ControlAuto WindSleep timer operation for heating cycle Heatpump Only Auto restartProtection Functions & Controls Five Seconds Stand-by fanTwo Minutes Stand-by comp Hot start Heatpump OnlyOutdoor Temperature Running Time sec Compressor Preheating Heatpump OnlySump Heater Control 9, 12kBtu/h Model Only Heatpump Only 1 9,12kBtu/h ModelAutomatic defrost Heatpump Only Starting the defrosting operation 2 18,24,30kBtu/h ModelDefrosting Control Algorithm Control algorithm of defrost completionPower Relay Control InverterOverheating Protection Power Module Heat sink sensor failure error Heat sink temperature controlFunction Total Current Control Over Current Protection CT1 controlCT2 control Model KBtu/h Cooling Heating11A 12A 14A 15.5A DC Peak control Discharge Pipe Temp ControlInverter Compressor 18,24,30kBtu/h Model Constant Compressor only 30kBtu/h Model There can be two situationsCompressor working Low Ambient control 12.1 9,12kBtu/h Model12.2 18, 24, 30kBtu/h Model Model Mode-in Condition Mode-out ConditionOil return control30kBtu/h Model Heatpump Only Oil equalizing control30kBtu/h ModelOperating Contion Operation ProcessCheck before Test Run Test Run Flow chart Test Run Detail Part 3 Test RunCheck before Test Run Test Run Flow chart StartPump Down Procedure Test Run DetailSettlement of outdoor unit Evaluation of the performancePart 4 Trouble Shooting Way, 3-Way Valve Way Valve Liquid SideProcedure Pumping DownAir purging of the charge hose Set the 2-way valve to the closed positionEvacuation Mount the valve stem nuts and the service port nut Gas Charging After EvacuationConnect the charge hose to the charging cylinder Purge the air from the charge hoseCycle Troubleshooting Guide Trouble analysisElectronic Parts Troubleshooting Guide Procedure Specification RemedyTrouble 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 18,24,30kBtu/h Model Indoor Error Outdoor ErrorError code Descrition Red Green StatusError CodeTroubleshooting 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 Troubleshooting CH01, CH02, CH06 Check PointPart Trouble Shooting Troubleshooting CH05, CH53Troubleshooting CH21 CompCopper Comp pipe Troubleshooting CH21, CH22 Troubleshooting CH23, CH28 Troubleshooting CH24, CH25 Troubleshooting CH26, CH27 ‘B’Troubleshooting CH32, CH33, CH40 Troubleshooting CH41, CH44, CH45, CH46, CH47, CH65 Troubleshooting CH51, CH60 Inverter/ConstantCondenser/Suction Pipe 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

The Heat Controller VMC30SB-1/VMH30SB-1, VMC09SB-1/VMH09SB-1, VMC24SB-1/VMH24SB-1, VMC18SB-1/VMH18SB-1, and VMC12SB-1/VMH12SB-1 are versatile and efficient HVAC systems designed for residential and commercial applications. These units stand out due to their innovative technologies, user-friendly features, and reliable performance, making them an excellent choice for heating and cooling needs.

One of the most significant features of these units is their Energy Efficiency Rating (EER). Each model has been engineered to provide optimal energy savings, thus minimizing operating costs and environmental impact. Utilizing advanced inverter technology, the systems adjust their cooling and heating output according to the room's demand, ensuring that energy is used only when necessary. This results in quieter operation, less energy consumption, and enhanced comfort.

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The compact design of these models allows for easy installation in various spaces, including small apartments or tight commercial setups. They feature an intuitive control panel that offers user-friendly programming options, enabling users to schedule operations according to their daily routines. Additionally, many models include smart connectivity features, allowing remote access and adjustments via mobile apps.

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