Friedrich H)A09K25, V(E service manual Electrical Troubleshooting Chart Heat Pump

Page 42

ELECTRICAL TROUBLESHOOTING CHART

HEAT PUMP

HEAT PUMP

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

42

Image 42

Contents VE,HA18K25 VE,HA18K34 VE,HA09K25 VE,HA09K34VE,HA12K25 VE,HA12K34 VE,HA24K25 VE,HA24K34Table of Contents Introduction Serial Number Identiﬁcation Guide VERT-I-PAKH Suffix Chassis Specifications VERT-I-PAKE & G Suffix Chassis Specifications VERT-I-PAKA D Suffix Chassis Specifications Refrigeration Assembly Sequence of OperationSupply Voltage Electrical SupplySupply Circuit Control Low VoltageRoom Thermostats Heat AnticipatorsTypical Electrical & Thermostat Wiring Diagrams Typical Electrical & Thermostat Wiring Diagrams Sufﬁx For 208 Volt Models only Move the White Wire AS Shown below Blower Wheel Inspection Indoor Blower AirﬂowCondenser Fan Motors CoolingChecking External Static Pressure Checking Approximate AirﬂowElectric Heat Strips Explanation of charts Ductwork PreparationRefrigerant Charging Method Of Charging Undercharged Refrigerant SystemsOvercharged Refrigerant Systems Restricted Refrigerant SystemsReversing Valve Description/Operation Testing CoilMetering Device Capillary Tube Systems Electrical Circuit and CoilChecking Reversing Valve Touch Test in Heating/Cooling CycleCompressor Checks From Electrical ShockSingle Phase Resistance Test Recommended Procedure for Compressor ReplacementCapacitors Capacitor ConnectionsElectric Heat Switch Operation Electric Heat Switch Check OutWiring Diagram Index VHA09K25RTG Sufﬁx only Sufﬁx only Sufﬁx only Page Page Page Page Page Page Page Page Page Electrical Troubleshooting Chart Cooling TON Electrical Troubleshooting Chart Cooling Troubleshooting Chart Cooling Electrical Troubleshooting Chart Heat Pump Page Use Factory Certiﬁed Parts