Heat Controller DMH18SB-1, DMC18SB-1 Compressor/Outdoor Fan are unable to drive.9k Model

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Troubleshooting Guide

Compressor/Outdoor Fan are unable to drive.(9k Model)

Turn on Main Power

Operate "Cooling Mode( )" by setting the desired temperature of the remote controller is less than one of the indoor temperature by 2°F at least.

When in Fan Mode, Compressor/Outdoor Fan is stopped.

Check the sensor for indoor temperature is attached as close as to be effected by the temperature of Heat Exchanger(EVA).

When the sensor circuit for indoor temperature and connector are in bad connection or are not engaged, Compressor/Outdoor Fan is stopped.

•Check the related circuit of R02H(12.1K), R04H(6.2K), Micom (No.27) (Indoor unit).

• Check the indoor temperature sensor is disconnected or not(About 10kΩ / at 77°F).

When the temperature around Outdoor PWB Ass'y is above 163°F the compressor is stop and only Outdoor Fan is operating.

Check Relay(RY - COMP) for driving compressor.

•When the power(About AC110V) is applied to the connecting wire termi- nal support transferred to compressor, PWB Ass'y is normal.

•Check the circuit related to the relay(Outdoor unit).

Check point

COMP ON

COMP OFF

Between Micom(No.

DC5V

DC0V

5) and GND

 

 

 

 

 

Between IC01M, IC02M(No. 9)

Below DC 1V

About DC12V

and IC01M, IC02M(No. 8)

(app)

 

 

 

 

Turn off Main Power

•Check the electrical wiring diagram of outdoor side.

•Check the abnormal condition for the component of Compressor/Outdoor Fan Motor.

54Room Air Conditioner

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Contents Heat CONTROLLER, INC Table of Contents Safety Precautions InstallationBe sure not to do Be sure to follow the instruction Operation Do not handle the pipe by your- selfCostomerDo not allow water to run into electric part There is risk of electrical shock There is risk of fire or electrical shockThere is risk of electric shock There could result in personal injury and product dam- ageDo not direct airflow at room occu- pants Water is drained away properly ProductLeakage Do not block the inlet or outlet of air flowDisuse Do not drink the water drained from the unitReplace all the batteries in the remote Dimensions Indoor UnitModel Btu Series Mminch 109042.9 30011.8 1787.09k, 12k Outdoor Unit9k, 12k Unit18k, 24k Symbols Used In This Manual FeaturesIntroduction Installation Tools InstallationInstallation Parts Read carefully, and then follow step by stepInstallation Map Confirm The Refrigerant This Product Contains R-410A RefrigerantIndoor unit Rooftop InstallationsSelect The Best Location Outdoor unitPiping Length And Elevation How To Mount Installation Plate Drill a Hole In The WallBurrs removal Flaring WorkCut the pipes and the cable Putting nut onConnecting The Piping Indoor unit installationIndoor Wrap the insulation material around the connecting portion Tighten the flare nut with a wrenchInsert the connecting cable into the indoor unit Indoor unit installationTape the drain hose and the connecting cable Piping for passage through piping hole Correct case Incorrect caseConnection Of The Drain Hose Connection Of Piping -OutdoorConnection Of The Cable Outdoor unitInstallation Drain hose should point downward for easy drain flow Checking The DrainageDrain piping Avoid these situationsForming The Piping Seal small openings around pipings with a gum type sealerPreparation Air PurgingAir purging With Vacuum Pump Leak testConnect the charge hose end described EvacuationFinishing the job Clockwise to fully open the valveCharging ImportantUnit is critically chargedSettlement of outdoor unit Prepare remote controlTest Running Evaluation of the performanceOperation Cooling Mode OperationHealthy Dehumidification Mode Function of ControlsHeating Mode Operation Defrost ControlJet Cool Mode Operation C/O Model Sleep Timer OperationChaos Natural Wind Mode Jet Cool Mode Operation H/P ModelAuto restart Forced operationTest operation Protection of the evaporator pipe from frostingHeating Model Display FunctionSelf-diagnosis Function Cooling ModelRemote Control Operations Nd F ButtonDisassembly To remove the Grille from the ChassisTo remove the Discharge Grille When repair, do not damage the Caution labelTo remove the Control Box To remove the EvaporatorTo remove the Motor Cover To remove the Cross-Flow FanCooling Only Models Troubleshooting GuideRefrigeration Cycle Diagram Cooling & Heating ModelsWay, 3-way Valve Way Valve Liquid SideProcedure Pumping DownAir purging of the charge hose Balance Refrigerant of the 3-way Valve Gas leakageAll amount of refrigerant leaked After Evacuation Mount the valve stem nuts and the service port nutGas Charging Connect the charge hose to the charging cylinderAccording to Indoor & Outdoor Temperature Method of using graphMethod of using equation Additional gas chargingCycle Parts Trouble analysisElectronic Parts 9k model Product does not operate at allElectronic Parts 18k model Product is not operate with the remote controller Compressor/Outdoor Fan are unable to drive.9k Model Compressor/Outdoor Fan are unable to drive.18k Model When indoor Fan does not operate NectorWhen Vertical Louver does not operate When a comunication error occurs Phenomena in case of connecting error Indoor UnitOutdoor Unit Schematic Diagram Electric Control DeviceOutdoor 9k, 12k Outdoor 18k, 24k Wiring Diagram Models 9kC/O Models 12kH/P, 12kC/O, H/P Models 18kC/O Models 18kH/P, 24kC/O, H/P Components Location Outdoor9k, 12k Outdoor18k, 24k 6870A90240D 6870A90240E Product Specifications Cooling OnlyCooling & Heating DMH09SB-0 DMH12SB-0 DMH18SB-1 DMH24SB-1Heat CONTROLLER, INC

DMH12SB-0, DMH18SB-1, DMC24SB-1, DMH24SB-1, DMH09SB-0 specifications

The Heat Controller DMC24SB-1, DMH18SB-1, DMH09SB-0, DMH24SB-1, and DMC18SB-1 are a series of high-efficiency air conditioning systems designed to meet diverse climate control needs. Each model is equipped with advanced technologies to ensure optimal performance, energy efficiency, and user comfort.

One of the standout features across this range is the incorporation of inverter technology. This technology allows the units to adjust the compressor speed based on the desired temperature, significantly reducing energy consumption compared to traditional systems. As a result, users can enjoy lower utility bills while maintaining a consistent indoor climate.

The DMC24SB-1 is particularly notable for its robust cooling capacity, making it ideal for larger spaces. It boasts a sleek design that complements modern interiors while providing efficient air distribution through its multi-directional airflow system. The unit is also equipped with a programmable timer and remote control for added convenience.

The DMH series, including the DMH18SB-1, DMH09SB-0, and DMH24SB-1, offers versatility in terms of size and cooling capacity. The DMH09SB-0 is perfect for smaller rooms, while the DMH24SB-1 can effectively cool larger areas. Each model in the series features a quiet operation mode, ensuring minimal noise when cooling or heating.

The DMC18SB-1 stands out for its dual functionality, providing both heating and cooling options. This model is equipped with an advanced Eco-friendly refrigerant that not only reduces environmental impact but also enhances overall system efficiency. Additionally, it features self-cleaning technology that eliminates dust and allergens, improving indoor air quality.

All models are designed with user-friendliness in mind, featuring clear digital displays and easy-to-navigate controls. Moreover, these heat controllers adhere to the highest energy efficiency ratings, ensuring they meet stringent environmental guidelines.

In summary, the Heat Controller line featuring models DMC24SB-1, DMH18SB-1, DMH09SB-0, DMH24SB-1, and DMC18SB-1 exemplifies cutting-edge heating and cooling solutions. With their advanced technologies, energy-efficient performance, and user-centric designs, these units are well-suited for both residential and commercial applications, offering reliable comfort year-round.
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