Friedrich WS10B10 service manual Electrical Troubleshooting Chart Heat Pump, Yes

Page 41

ELECTRICAL TROUBLESHOOTING CHART - HEAT PUMP

WARNING

ELECTRIC SHOCK HAZARD

Turn off electric power before service or installation.

Extreme care must be used, if it becomes necessary to work on equipment with power applied.

Failure to do so could result in serious injury or death.

CAUTION

BURN HAZARD

Certain unit components operate at temperatures hot enough to cause burns.

Proper safety procedures must be followed, and proper protective clothing must be worn.

Failure to do so could result in minor to moderate injury.

HEAT PUMP

SYSTEM COOLS WHEN HEATING IS DESIRED.

Is Line Voltage

Present at the

Solenoid Valve?

YES

NO

Is the Selector Switch Set for Heat?

Is the Solenoid Coil Good?

YES

NO

Replace the Solenoid Coil

Reversing Valve Stuck

Replace the Reversing Valve

40

Image 41
Contents Thru-the-wall Table Of Contents Your safety and the safety of others are very important Important Safety InformationRefrigeration System Hazards Property Damage Hazards IntroductionFriedrich wallmaster Model Number Code Performance Data Sleeve / Chassis DimensionsPlug/Outlet/Circuit Rating Electrical DataElectric Shock Hazard Fire HazardElectronic Control Operation To adjust fan speedTo activate Smart FanWS cool-only models To activate Smart FanWY/WE heat-cool modelsTo Activate Money Saver WY/WE models To set the timerChecking Room Temperature To start unit To set mode of operationTo adjust temperature Testing the Electronic Control Error Code ModeElectronic Control Panel Automatic component protectionError Codes Listing for WE/WY Models Error Codes Listing for WS ModelsReboot the Control Panel E7 Motor Operation E9 Heat Pump FailureCoil Sensors Components TestingFAN Motor FAN Motor TestHeating Element CapacitorsDrain PAN Valve Capacitor Check with Capacitor AnalyzerRefrigeration System Sequence of Operation Refrigeration system under high pressure 410A Sealed System Repair ConsiderationsEquipment Required 410A Sealed Refrigeration System RepairsEquipment Must be Capable Risk of Electric ShockFreeze Hazard Method Of Charging / RepairsBurn Hazard Overcharged Refrigerant Systems Undercharged Refrigerant SystemsRestricted Refrigerant System Metering Device Hermetic Components CheckCheck Valve Capillary Tube SystemsPOSITION, 4 Port Reversing Valve Reversing Valve DESCRIPTION/OPERATIONChecking the Reversing Valve Testing the CoilExplosion Hazard Procedure For Changing Reversing ValveTouch Test in Heating/Cooling Cycle Compressor Checks Ground Test Single Phase Resistance TestHigh Temperatures Compressor ReplacementRecommended procedure for compressor replacement Rotary Compressor Special Troubleshooting and Service Routine Maintenance Clearances Sleeve / DrainFront Cover Date Model Serial Room AIR Conditioner Unit Performance Test Data SheetGeneral Troubleshooting Tips General Troubleshooting Tips Cooling only Room AIR Conditioners Troubleshooting Tips Possible Cause Possible Solution Problem Possible Cause Possible Action HEAT/COOL only Room AIR Conditioners Troubleshooting Tips Heat Pump Troubleshooting Problem Troubleshooting Chart CoolingTroubleshooting Chart Heating Heat Pump YES Electrical Troubleshooting Chart Heat PumpSystem Cools When Heating is Desired Malfunction of Valve Normal Function of ValvePage Page Page Installation Accessories Description QTY Mounting Hardware ProvidedWall Preparation MECHANICALCUT/SEVER Hazardhazard Installation RequirementsMECHANICALCUT/SEVER Hazard Installation Instructions for Baffle Adapter KIT BAKCUT/SEVER WallMaster Thru-the-WallMechanical Hazard MECHANICALCUT/SEVER Hazard Installation InstructionsAssembly & Installation Instructions Installation Instructions Subbase for WS, WE & WY Models Installation Instructions Architectural Grille Model AG MECHANICALCUT/SEVER Hazard WALLMASTER≤ THRU-THE-WALL AIR Conditioners Limited Warranty Technical Support Contact Information Page Page Friedrich AIR Conditioning CO