Heat Controller DMH24DB-1 Title Cause of error Check point & Normal condition, Outdoor air sensor

Page 65

 

 

 

Troubleshooting Guide

 

 

 

 

 

Error

Title

Cause of error

Check point & Normal condition

 

code

 

 

 

 

 

 

 

 

 

 

 

 

• Open / Short

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

 

44

Outdoor 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)

 

45

Condensor pipe sensor

• Soldered poorly

 

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

 

 

 

• Internal circuit error

 

 

 

 

 

 

 

 

 

 

 

 

• Open / Short

Normal resistor : 200KΩ / at 25°C(77°F) (Unplugged)

 

47

D-Pipe sensor

• Soldered poorly

 

Normal voltage : 4.5Vdc / at 25°C(77°F) (plugged)

 

 

 

• Internal circuit error

 

 

 

 

 

 

 

 

 

 

Ω

Ω

Check the resistance

❑Check Point

1.Estimate the resistance of each sensor.(Unplugged)

2.Estimate the voltage of each sensor.(Plugged)

3.If the resistance is 0V or 5Vdc, then sensor is abnormal

Service Manual 65

Page 64 Page 66
Image 65
Page 64 Page 66
Contents Heat CONTROLLER, INC Table of Contents Combination table Symbols Used in this ManualInstallation Safety PrecautionsBe sure not to do Be sure to follow the instruction Control box securely Cuit and breakerDo not install the product on a Do not install, remove, or reDefective installation stand 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 24kBtu/h Outdoor UnitDMC24DB-1 Product SpecificationsOperation UnitDMH24DB-1 Installation Tools InstallationInstallation Parts Select the best location Rooftop InstallationsIndoor unit Outdoor unit24k Piping length and elevationMulti Piping Type Fixing Installation PlateStandard Type Flaring work Flaring Work and Connection of PipingIndoor 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 unit OutdoorConnect the cable to the Indoor unit Connecting the Cable between Indoor Unit and Outdoor UnitOutdoor unit Connect the cable to the Outdoor unitHow to connect wiring to the terminals Connection method of the connecting cableExampleConnect the cable to the indoor unit Drain piping Checking the drainageTo check the drainage Down to up Forming the pipingChecking method Air Purging and EvacuationFinishing the job Repeat evacuation procedure for each indoor unitEvacuation Additional ChargingSplit Type Test RunningSoft Dry Operation Mode Cooling Mode OperationHeating Mode Operation OperationFuzzy Operation for Cooling Defrost ControlHeatingFuzzy Operation Off-Timer Operation On-Timer OperationAirflow Speed Selection Fuzzy Operation for DehumidificationSleep Timer Operation Off-Timer = On-Timer OperationChaos Swing Mode Chaos Natural Wind ModeBuzzer Sounding Operation Forced OperationSplit Type Indoor Unit Function of Indoor UnitFunction of Outdoor Unit 15 2nd F Button Remote Control OperationCooling Model , Heat Pump Model To remove the Grille from the Chassis DisassemblyTo remove the Control Box To remove the Motor Cover Indoor Unit Schematic DiagramElectronic Control Device TMP87CM41F Outdoor UnitRY-4WAY RY-LIQ RY-GAS RY-FANL RY-FANH Room Type Indoor Unit Wiring DiagramBottom View Components LocationsDisplay Assembly Split Type 6871A20680 Component side Solder side Refrigeration Cycle Diagram Troubleshooting GuideDMH24DB-1 DMC24DB-1Outdoor Error Indoor ErrorError Indicator Self-diagnosis FunctionTrouble analysis Cycle Troubleshooting GuideProcedure Specification Remedy Electronic Parts Troubleshooting GuideProduct doesnt operate with the remote controller Check Point Comp. on Comp. OFF Compressor/Outdoor Fan are dont operateNector Trouble 4 When indoor Fan does not operateTroubleshooting Guide Check Point Error Code Indoor air sensor Indoor inlet pipe sensorCommunication line is shorted at GND Power input AC 230V.Outdoor, IndoorError Title Cause of error Check point & Normal condition Outdoor air sensor Title Cause of error Check point & Normal conditionCondensor pipe sensor Pipe sensorWay Valve Liguid Side Way, 3-way ValvePumping down ProcedureAir purging of the charge hose Set the liquid side valve to the closed positionAll amount of refrigerant leaked Mount the valve caps and the service port capsEvacuation Gas Charging Mount the valve stem nuts and the service port nutAfter Evacuation Connect the gauge to the charging cylinderHeat CONTROLLER, INC
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