Rheem RAMP-JEZ Installation Instructions - Page 21

MECHANICAL CHECKS FLOW CHART Unit Running? High Head Pressure YES Pressure problems? Low Head Pressure Dirty Condenser Coil Low on Charge Inoperative Outdoor Fan Open IPR Valve Overcharge Low Ambient Temperature Recirculation of Condenser Air Inoperative Compressor Valves Non-condensibles Restricted Filter-drier Higher than Ambient Air Entering Condenser Wrong Condenser Fan Rotation Indoor Metering Device Stuck Open Restriction in System Indoor Metering Device Stuck Closed NO Go to Electrical Checks Flow Chart Low Suction Pressure Dirty Filters Dirty Evaporator Inadequate Airflow Broken Indoor Blower Belt Inoperative Indoor Blower Low on Charge Faulty Metering Device Restriction in System Restricted Filter-drier Recirculation of Evaporator Air Wrong Evaporator Blower Rotation Inadequate Ducts 21