Electrical Troubleshooting Chart Heat Pump | Friedrich 000 BTU'S, 9

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

42

Image 44

Friedrich 000 BTU'S, 9 service manual Electrical Troubleshooting Chart Heat Pump, Heat Pump Mode

Contents

Single Package Vertical Air Conditioning System Technical Support Contact Information Table of Contents Important Safety Information Your safety and the safety of others are very important Refrigeration System Hazards Introduction Property Damage Hazards Serial Number Identiﬁcation Guide Chassis Specifications Electric Heat Data Extended Cooling Performance VEA Extended Cooling Performance VEA/VHA09-24 VEA Extended Cooling Performance Electrical Requirements Electric Shock Hazard Remote Thermostat and Low Voltage Control Connections RT5 Two speed fan RT4 One speed fan Thermostat Connections Electronic Control Board Features Quiet Start/Stop Electronic Control Conﬁguration Test Mode Electronic control error codes diagnostics and test modeDiagnostics Power On and Off Features on the Electronic Control Cool mode control features for cool with electric heat units Compressor operation depends on t-stat settings Component description / A-Series specifications VERT-I-PAK Single Packaged Vertical AIR Conditioners External Static Pressure Indoor Airflow Data Components Testing CapacitorsCapacitor Check with Capacitor Analyzer Capacitor Connections Drain PAN Valve Components TestingHeater Elements and Limit SWITCHES’ Specifications Refrigeration Assembly Refrigeration Sequence of Operation Service CUT/SEVER Hazard Sealed Refrigeration System Repairs Equipment RequiredEquipment Must be Capable Risk of Electric Shock Freeze Hazard Method Of Charging / RepairsBurn Hazard Undercharged Refrigerant Systems Overcharged Refrigerant Systems Restricted Refrigerant System Hermetic Components Check Metering DeviceCheck Valve Capillary Tube Systems Reversing Valve DESCRIPTION/OPERATION Testing the Coil Checking the Reversing Valve Procedure For Changing Reversing Valve Touch Test in Heating/Cooling CycleFire Hazard Explosion Hazard Compressor Checks Checking Compressor Efficiency Single Phase Resistance TestGround Test High Temperatures Compressor ReplacementRecommended procedure for compressor replacement Rotary Compressor Special Troubleshooting and Service Routine Maintenance Coils and Base PAN Excessive Weight HazardBlower Wheel / Housing / Condenser FAN / Shroud AIR Filter Routine Maintenance Sleeve / DrainFront Cover Condensate Disposal System Electrical Troubleshooting Chart Cooling 9K BTU, 12K BTU, & 18K BTU Electrical Troubleshooting Chart Cooling 24K BTU Circuit Breakers are Electrical Troubleshooting Chart Heat Pump Heat Pump Mode Troubleshooting Chart Cooling Troubleshooting Chart Heating VEA 09/12/18 with 2.5 KW, 3.4 KW or 5KW Electric Heat VHA 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 Outdoor Coil Return Air Indoor Coil Drain PAN AccessoriesWall Plenum Friedrich Air Conditioning Company Technical Support Contact Information Friedrich AIR Conditioning CO