Friedrich 115 Volts UE08, UE08, UE10, UE12 manual Troubleshooting Guide

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3.3 TROUBLESHOOTING GUIDE

In general, possible trouble is classified in two causes.

The one is called Starting Failure which is caused from an electrical defect, and the other is Ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application.

Unit is running but cooling is ineffective

Ineffective Cooling

Check cold air circulation for smooth flow.

Dirty indoor coil (Heat exchanger)

Malfunction of fan

Clogged air filter

Obstruction at air outlet

Stop auto air-swing

Correct above troubles

Check clogging in refrigeration circuit.

Repair clogging in refrigeration circuit.

Check outdoor coil

(heat exchanger) & the fan operation.

Check gas leakage.

Repair gas leak.

Replacement of unit if the unit is beyond repair.

Satisfactory operation with temperature difference of inlet & outlet air ; 18-26°F

Check heat load increase.

Unexpected residue

Overloaded Circuit

Check inside gas pressure.

Adjusting of refrigerant charge

Malfunction of compressor

Replacement of compressor

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Contents Thru-the-Wall Series Preface ContentsFor UE08A13B/UE10A33B/UE12A33B SpecificationsControl Locations FeaturesOperation VentilationMechanical Parts Disassembly InstructionsFront Grille CabinetORIFICE, Heater Assy and Turbo FAN AIR Handling PartsCompressor Electrical PartsCapacitor Rotary Switch Power CordThermostat Condenser Refrigeration CycleEvaporator Capillary TubePage Pulling Vacuum Outside Dimensions Troubleshooting GuidePiping System Troubleshooting Guide Fails to Start Complaint Cause Remedy Room AIR Conditioner Voltage Limits Complaint Cause Remedy Circuit Diagram Schematic DiagramModel UE08A13B/UE10A33B/UE12A33B Exploded ViewModel UE08A13B Replacement Parts ListModel UE10A33B Model UE12A33B Friedrich AIR Conditioning CO