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High Suction Pressure
High Suction Pressure
High
Evaporator Air
Inlet Temperature
Low Suction Pressure
Low Suction Pressure
Restricted
Evaporator
Air Flow
Low
Evaporator Air
Inlet Temperature
Noisy Operation
Noisy Operation
Noisy
Compressor
Shipping Washers
Liquid Refrigerant
Backing Up
Noisy
Evaporator Fan
Liquid Line
Excessive Fresh Air Intake
Insufficient Duct Insulation
Defective Compressor Valve
Overcharged Refrigerant
High Discharge Pressure
Clogged Air Filter
Slipping Fan Belt
Restricted Duct
Low Fan Speed
Faulty Fan Motor
Short Cycling
Faulty Thermostat
Restricted Liquid Line and Suction Line
Low Refrigerant Charge
Low Discharge Pressure
Noisy
Whistling
Strainer
-----------------------------Reduce the Fresh Air Intake
-----------------------------Reinforce the Duct Insulation
-----------------------------Replace or Repair the Compressor
-----------------------------Charge Correct Refrigerant Quantity
-----------------------------See "High Discharge Pressure"
-----------------------------Clean the Air Filter
-----------------------------Adjust the Belt Tension
-----------------------------Remove the Restriction
-----------------------------Adjust the Fan Speed
-----------------------------Repair or Replace the Motor
-----------------------------Remove Obstacles to Air Circulation
-----------------------------Repair or Replace if Required
-----------------------------Remove the Restriction
-----------------------------Add Refrigerant
-----------------------------See "Low Discharge Pressure"
Unremoved Shipping Washers
Overcharged Refrigerant
Low Suction Pressure
Worn Compressor Parts
Knocking Runner
Worn Bearing
Loose Fan Belt
Partially Clogged
Refrigerant Short Charge
Loose Fixed Screw
Weak Foundation Installation
Inadequate Duct Work
TROUBLESHOOTING
---------- Remove the Washers
---------- Charge the Correct Refrigerant Quantity
---------- See "Low Suction Pressure"
---------- Replace or Repair the Compressor
---------- Fix the Runner or Casing Properly
---------- Replace the Bearing
---------- Adjust Fan Belt Tension
---------- Clean the Strainer
---------- Add Refrigerant
---------- Tighten All Fixed Screws
---------- See the Installation Guide
---------- Clean the Flexible Ducts
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