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Friedrich H)A24K34L, R410A, H)A12K25L Electrical Troubleshooting Chart Heat Pump, Heat Pump Mode

Models: H)A09K25L H)A12K50L H)A09K50L H)A24K10L H)A24K25L H)A24K34L H)A18K34L H)A12K34L H)A09K34L H)A24K75L H)A18K25L H)A24K50L H)A12K25L R410A

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Page 35

ELECTRICAL TROUBLESHOOTING CHART

HEAT PUMP

HEAT PUMP MODE

SYSTEM COOLS WHEN

HEATING IS DESIRED.

Is Line Voltage

Present at

Solenoid Valve?

YES

NO

Is Selector Switch

set for Heat?

Is the Solenoid

Coil Good?

NO

Replace Solenoid Coil

YES

Reversing Valve Stuck

YES

Replace Reversing Valve

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Image 35

Friedrich H)A24K34L, R410A, H)A12K25L, H)A09K34L, H)A24K25L Electrical Troubleshooting Chart Heat Pump, Heat Pump Mode

Contents

R v i c e M a n u a l R 4 1 0 a M o d e l s Introduction Technical Support Contact InformationTable of Contents Your safety and the safety of others are very important Important Safety InformationRefrigeration System Hazards Property Damage Hazards Production RUN Number Product Line Serial Number Year ManufacturedMonth Manufactured Model Chassis SpecificationsIndoor WET Bulb TEMP. Degrees F AT 80 F D.B Extended Cooling PerformanceElectric Shock Hazard Electrical RequirementsRT5 Two speed fan RT4 One speed fan Remote Thermostat and Low Voltage Control ConnectionsThermostat Connections Quiet Start/Stop Electronic Control Board FeaturesElectronic Control Conﬁguration Test Mode Electronic Control Error Code DiagnosticsDiagnostics Thermostat Compatibility Vpak electronic control FeaturesExternal Static Pressure Explanation of charts Capacitor Connections Components TestingCapacitors Capacitor Check with Capacitor AnalyzerDrain PAN Valve Components TestingHeater Elements and Limit SWITCHES’ Specifications Refrigeration Sequence of Operation Refrigeration AssemblyCUT/SEVER Hazard ServiceRisk of Electric Shock Sealed Refrigeration System RepairsEquipment Required Equipment Must be CapableFreeze Hazard Method Of Charging / RepairsUndercharged Refrigerant Systems Burn HazardRestricted Refrigerant System Overcharged Refrigerant SystemsCapillary Tube Systems Hermetic Components CheckMetering Device Check ValveChecking the Reversing Valve Testing the CoilReversing Valve DESCRIPTION/OPERATION Fire Hazard Procedure For Changing Reversing ValveTouch Test in Heating/Cooling Cycle Compressor Checks Ground Test Single Phase Resistance TestExternal Overload Vpak 9, 12, 18 K Btus Internal Overload Vpak 24 K BtusHigh Temperatures Compressor ReplacementRecommended procedure for compressor replacement Electrical Shock Hazard Routine Maintenance9K BTU, 12K BTU, & 18K BTU Electrical Troubleshooting Chart CoolingCircuit Breakers are Electrical Troubleshooting Chart Cooling 24K BTUHeat Pump Mode Electrical Troubleshooting Chart Heat PumpTroubleshooting Chart Heating Troubleshooting Chart CoolingElectric Heat VEA 09/12/18 with 2.5 KW, 3.4 KW or 5KWVHA 09/12/18 with 2.5 KW, 3.4 KW or 5KW Cool with Electric Heat Heat Pump with Electric Heat Cool with Electric Heat Heat Pump with Electric Heat Technical Service Data Technical Service DataVPK-ServMan-L Friedrich AIR Conditioning CO