LOW SUCTION
PRESSURE
SIGHTGLASS
EVAPORATOR
AIR FLOW
EVAPORATOR AIR
INLET TEMPERATURE
CLOGGED LIQUID FILTER DRIER
LOW REFRIGERANT CHARGE
RESTRICTED LIQUID LINE
RESTRICTED DUCT
LOW FAN SPEED
FAULTY FAN MOTOR
WRONG MOTOR ROTATION
SUPPLY AIR SHORT CYCLING
FAULTY THERMOSTAT ELEMENT
REPLACE FILTER DRIER,
EVACUATE AND CHARGE NEW
REFRIGERANT
ADD THE REFRIGERANT
REMOVE THE RESTRICTION
REMOVE THE RESTRICTION
ADJUST THE FAN, BELT OR
REPAIR OR REPLACE THE MOTOR
CORRECT MOTOR ROTATION
REMOVE OBSTACLES TO AIR
CIRCULATION
REPAIR OR REPLACE THE
THERMOSTAT
THERMOSTAT SETTING TOO LOW
RESTRICTED SUCTION LINE
LOW DISCHARGE PRESSURE
INADEQUATE OPENING OF THERMO VALVE
DIRTY EVAPORATOR COIL
CLOGGED EXPANSION VALVE
ADJUST SETTING
REMOVE THE RESTRICTION
SEE "LOW DISCHARGE PRESSURE"
OPEN THE THERMO-VALVE
CLEAN OR REPAIR EXPANSION
VALVE
CLEAN EVAPORATOR COIL
NOISY
OPERATION
COMPRESSOR
EVAPORATOR FAN
SHIPPING OR
MOUNTING BOLTS
LIQUID REFRIGE-
RANT BACKING UP
UNLOOSENED BOLTS
UNREMOVED SHIPPING BOLT
OVERCHARGED REFRIGERANT
LOW SUCTION PRESSURE
WORN COMPRESSOR PARTS
WRONG PHASING
LOOSE, FIXED SCREW
WEAK FOUNDATION INSTALLATION
LOOSEN COMPRESSOR MOUNTING
BOLTS
REMOVE THE BOLTS
PURGE THE EXCESS REFRIGERANT
SEE "LOW SUCTION PRESSURE"
REPLACE THE COMPRESSOR
RECONNECT WIRING
TIGHTEN ALL FIXED SCREWS
REINFORCE THE FOUNDATION
ADJUST THE BELT TENSION
CLEAN THE AIR FILTER
LOOSE FAN BELT
CLOGGED AIR FILTER
CHANGE PULLEYS
REPLACE BELTS
REALIGN MOTOR AND FAN
REPLACE THE BEARING
FIX THE RUNNER OF CASING
WORN OUT V-BELTS
PULLEYS MISALIGNMENT
LOOSE OR OVERTIGHTEN FAN BELTS
WORN BEARING
KNOCKING RUNNER
PROPERLY
PULLEYS
CHECK DUCT FIXING
INADEQUATE DUCT WORK
ADJUST THE BELT TENSION
=FAULT
=CHECK
=CAUSE
=REMEDY
POWER SUPPLY
5.0 MAINTENANCE
5.8 TROUBLESHOOTING CHART
