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Friedrich H)A09K25 Electrical Troubleshooting Chart Heat Pump, Is Selector Switch set for Heat?

Models: V(E H)A09K25

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Page 42

Image 42

ELECTRICAL TROUBLESHOOTING CHART

HEAT PUMP

SYSTEM COOLS WHEN

HEATING IS DESIRED.

Is Line Voltage

Present at

Solenoid Valve?

YES

Is Selector Switch

set for Heat?

Is the Solenoid

Coil Good?

Replace Solenoid Coil

YES

Reversing Valve Stuck

YES

Replace Reversing Valve

Page 42

Image 42

Friedrich H)A09K25 Electrical Troubleshooting Chart Heat Pump, System Cools When Heating Is Desired, Replace Solenoid Coil

Contents

MODELS Single Package Vertical Air Conditioning SystemA - H Sufﬁx Models VE,HA09K25Table of Contents Introduction Serial Number Identiﬁcation Guide Model Identiﬁcation GuideVEA/VHA9K-24K VERT-I-PAK H SUFFIX CHASSIS SPECIFICATIONSELECTRIC HEAT DATA VEA / VHA09,12VEA / VHA9K-24K VERT-I-PAK E & G SUFFIX CHASSIS SPECIFICATIONSELECTRIC HEAT DATA VEA / VHA09,12VERT-I-PAK A - D SUFFIX CHASSIS SPECIFICATIONS Sequence of Operation Refrigeration AssemblySupply Voltage Electrical SupplySupply Circuit Control Low VoltageRoom Thermostats Heat AnticipatorsLocation VEA/VHA 24K Typical Electrical & Thermostat Wiring DiagramsFOR 208 VOLT MODELS ONLY MOVE THE WHITE WIRE AS SHOWN BELOWRT1 THERMOSTAT FRONT G & H SufﬁxTypical Electrical & Thermostat Wiring Diagrams COMFOR 208 VOLT MODELS ONLY MOVE THE WHITE WIRE AS A - E SufﬁxTypical Electrical & Thermostat Wiring Diagrams SHOWN BELOWBlower Wheel Inspection Indoor Blower - AirﬂowCondenser Fan Motors CoolingChecking External Static Pressure Checking Approximate AirﬂowElectric Heat Strips Refrigerant Charging Explanation of chartsDuctwork Preparation Airﬂow Charts A - D SufﬁxMethod Of Charging Undercharged Refrigerant SystemsOvercharged Refrigerant Systems Restricted Refrigerant SystemsReversing Valve Description/Operation Testing CoilMetering Device - Capillary Tube Systems Electrical Circuit and CoilProcedure For Changing Reversing Valve Checking Reversing ValveTouch Test in Heating/Cooling Cycle DANGER OF BODILY INJURY OR DEATH Single Phase Running and L.R.A. TestCompressor Checks FROM ELECTRICAL SHOCKSingle Phase Resistance Test Recommended Procedure for Compressor ReplacementRepeat Step 8 to insure no more leaks are present Capacitors Capacitor ConnectionsCapacitor Check With Capacitor Analyzer Electric Heat Switch Operation Electric Heat Switch Check OutHeat Pumps Only DIAGRAM Wiring Diagram IndexDIAGRAM MODELVHA09K25RTG A - D Sufﬁx only A - D Sufﬁx only A - D Sufﬁx only Page Page Page Page Page Page Page Page Page 9-18ELECTRICAL TROUBLESHOOTING CHART - COOLING NO COOLING2-TONELECTRICAL TROUBLESHOOTING CHART - Cooling NO COOLINGREFRIGERANT SYSTEM DIAGNOSIS COOLING TROUBLESHOOTING CHART - COOLINGTROUBLESHOOTING CHART - HEATING REFRIGERANT SYSTEM DIAGNOSIS HEATINGHEAT PUMP ELECTRICAL TROUBLESHOOTING CHART HEAT PUMPSYSTEM COOLS WHEN HEATING IS DESIRED Is Selector Switch set for Heat?Page Post Office Box 1540 · San Antonio, Texas Use Factory Certiﬁed PartsFRIEDRICH AIR CONDITIONING CO 4200 N. Pan Am Expressway · San Antonio, Texas