Heat Controller DMC24DB-1 Error Code, Check Point, Indoor air sensor, Indoor inlet pipe sensor

Page 62

Troubleshooting Guide

ErrorCode

■Trouble Shooting

Error

Title

Cause of error

Check point & Normal condition

code

 

 

 

 

 

 

 

 

 

 

 

• Open / Short

Normal resistor : 10KΩ / at 25°C(77°F) (Unplugged)

01

Indoor air sensor

• Soldered poorly

Normal voltage : 2.5Vdc / at 25°C(77°F) (plugged)

 

 

• Internal circuit error

 

 

 

 

 

 

 

 

 

 

 

• Open / Short

Normal resistor : 5KΩ

/ at 25°C(77°F) (Unplugged)

02

Indoor inlet pipe sensor

• Soldered poorly

Normal voltage : 2.5Vdc / at 25°C(77°F) (plugged)

 

 

• Internal circuit error

 

 

 

 

 

 

 

 

 

 

 

• Open / Short

Normal resistor : 5KΩ

/ at 25°C(77°F) (Unplugged)

06

Indoor outlet pipe sensor

• Soldered poorly

Normal voltage : 2.5Vdc / at 25°C(77°F) (plugged)

 

 

• Internal circuit error

 

 

 

 

 

 

 

 

 

10KΩ

Ω

2.5Vdc

V

Check the resistance / voltage

❑Check Point

1.Unplug the sensor on Indoor unit PCB.

2.Estimate the resistance of each sensor

3. If the resistance of the sensor is 10KΩ /5KΩ at 25°C(77°F), then sensor is normal

4.If the resistance of the sensor is 0 KΩ or ∞ , then sensor is abnormal. ➔ Change the sensor.

5.Plug the sensor on Indoor unit PCB and Power ON.

6.Estimate the voltage of each sensor.

7.If the voltage of the sensor is 2.5Vdc / at 25°C(77°F), then sensor is normal.

8.If the resistance of the sensor is 0 or 5Vdc, then sensor is abnormal. ➔ Repair or Change the PCB

62Multi type Air Conditioner

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Contents Heat CONTROLLER, INC Table of Contents Symbols Used in this Manual Combination tableBe sure not to do Be sure to follow the instruction Safety PrecautionsInstallation Control box securely Cuit and breakerDefective installation stand Do not install, remove, or reDo not install the product on a Do not allow water to run into electric partsFlooded or submerged, contact When the product is soakedNot enter the product Use two or more people to lift and transport the product Install the drain hose to ensure that Keep level even whenInstalling the product Operational Be careful and avoid personal injury Split Type Indoor DimensionsIndoor Unit Outdoor Unit 24kBtu/hOperation Product SpecificationsDMC24DB-1 UnitDMH24DB-1 Installation Tools InstallationInstallation Parts Indoor unit Rooftop InstallationsSelect the best location Outdoor unit24k Piping length and elevationMulti Piping Type Fixing Installation PlateStandard Type Flaring Work and Connection of Piping Flaring workIndoor Connecting the PipingCheck Wrap the insulation material around the connecting por- tion For left rear piping Plastic bands Insulation material Connection Indoor Remote Control Preparationoptional Outdoor Outdoor unitConnecting the Cable between Indoor Unit and Outdoor Unit Connect the cable to the Indoor unitConnect the cable to the Outdoor unit Outdoor unitConnection method of the connecting cableExample How to connect wiring to the terminalsConnect the cable to the indoor unit Drain piping Checking the drainageTo check the drainage Forming the piping Down to upAir Purging and Evacuation Checking methodFinishing the job Repeat evacuation procedure for each indoor unitEvacuation Charging AdditionalTest Running Split TypeHeating Mode Operation Cooling Mode OperationSoft Dry Operation Mode OperationFuzzy Operation for Cooling Defrost ControlHeatingFuzzy Operation Airflow Speed Selection On-Timer OperationOff-Timer Operation Fuzzy Operation for DehumidificationChaos Swing Mode Off-Timer = On-Timer OperationSleep Timer Operation Chaos Natural Wind ModeForced Operation Buzzer Sounding OperationFunction of Indoor Unit Split Type Indoor UnitFunction of Outdoor Unit 15 2nd F Button Remote Control OperationCooling Model , Heat Pump Model Disassembly To remove the Grille from the ChassisTo remove the Control Box To remove the Motor Cover Indoor Unit Schematic DiagramElectronic Control Device Outdoor Unit TMP87CM41FRY-4WAY RY-LIQ RY-GAS RY-FANL RY-FANH Wiring Diagram Room Type Indoor UnitComponents Locations Bottom ViewDisplay Assembly Split Type 6871A20680 Component side Solder side DMH24DB-1 Troubleshooting GuideRefrigeration Cycle Diagram DMC24DB-1Error Indicator Indoor ErrorOutdoor Error Self-diagnosis FunctionCycle Troubleshooting Guide Trouble analysisElectronic Parts Troubleshooting Guide Procedure Specification RemedyProduct doesnt operate with the remote controller Compressor/Outdoor Fan are dont operate Check Point Comp. on Comp. OFFTrouble 4 When indoor Fan does not operate NectorTroubleshooting Guide Indoor air sensor Error CodeCheck Point Indoor inlet pipe sensorPower input AC 230V.Outdoor, Indoor Communication line is shorted at GNDError Title Cause of error Check point & Normal condition Condensor pipe sensor Title Cause of error Check point & Normal conditionOutdoor air sensor Pipe sensorWay, 3-way Valve Way Valve Liguid SideAir purging of the charge hose ProcedurePumping down Set the liquid side valve to the closed positionAll amount of refrigerant leaked Mount the valve caps and the service port capsEvacuation After Evacuation Mount the valve stem nuts and the service port nutGas Charging Connect the gauge to the charging cylinderHeat CONTROLLER, INC
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