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TROUBLESHOOTING
Insufficient Cooling
Insufficient Cooling
Cycling ON
Compressor
Cycling
Operating
High or Low
Pressure Switch
Overcurrent Relay
for Compressor
High Discharge Pressure
High Discharge Pressure
Restricted
Condenser
Air Flow
Condenser Air
Inlet Temperature
Low Discharge Pressure
Low Discharge Pressure
Condenser
Air Flow
37
Tripped
Tripped
Clogged Condenser Coil
Low Fan Speed
Faulty Fan Motor
High
Circulating Air Flow
Overcharged Refrigerant
Non-Condensable Gas
Restricted Liquid Line
High Suction Pressure
Low Refrigerant Charge
Low Ambient Temperature
High Discharge Pressure or
---------------------------- See "High Discharge Pressure" or
Low Suction Pressure
---------------------------- Repair the Clogging and
Clogged Capillary of Pressure Switch
---------------------------- Repair or Replace if Required
Faulty Switch
---------------------------- Obtain Correct Voltage
High Voltage or Low Voltage
---------------------------- Check the Power Line to the
Single Phase or Phase Imbalance
High Discharge Pressure and
---------------------------- See "High Discharge Pressure" and
High Suction Pressure
---------------------------- Tighten the Connections
Loose Connections
---------------------------- See "High Suction Pressure"
High Suction Pressure
High Discharge Pressure or
---------------------------- See "High Discharge Pressure" or
Low Suction Pressure
-----------------------------Clean the Condenser
-----------------------------Check the Voltage and Obtain Correct Voltage
-----------------------------Repair or Replace the Motor
-----------------------------Secure Space for the Required Air Flow
-----------------------------Charge the Correct Refrigerant Quantity
-----------------------------Purge the Gas
-----------------------------Remove the Restriction
-----------------------------See "High Suction Pressure"
-----------------------------Add Refrigerant
-----------------------------See "Unit Working Range"
"Low Suction Pressure"
Replace the Switch if Required
Compressor: Repair when Required
"High Suction Pressure"
"Low Suction Pressure"
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