Amana ASXN4 Series User Manual

11
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

Cooling
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
GUIDE INDICATE


System will not start
Compressor will not start - fan runs
Compressor and Condenser Fan will not start
Evaporator fan will not start
Condenser fan will not start
Compressor runs - goes off on overload
Compressor cycles on overload
System runs continuously - little cooling
Too cool and then too warm
Not cool enough on warm days
Certain areas to cool others to warm
Compressor is noisy
Low suction pressure
Low head pressure
High suction pressure
High head pressure


Power Failure • Test Voltage
Blown Fuse
•
•
• Impact Fuse Size & Type
Loose Connection
• • • • Inspect Connection - Tighten
Shorted or Broken Wires
• •
• • • • Test Circuits with Ohmmeter
Open Overload
• • Test Continuity of Overloads
Faulty Thermostat
•
•
• • Test Continuity of Thermostat and Wiring
Faulty Transformer
•
• Check Control Circuit with Voltmeter
Shorted or Open Capacitor • • •
• Test Capacitor
Internal Compressor Overload Open
• Test Continuity of Overload
Shorted or Grounded Compressor •
• Test Motor Windings
Compressor Stuck •
•
Use Test Cord
Faulty Compressor Contactor •
• • • Test Continuity of Coil and Contacts
Faulty Fan Relay • Test Continuity of Coil and Contacts
Open Control Circuit Test Control Circuit with Voltmeter
Low Voltage • • •
Test Voltage
Faulty Evaporator Fan Motor
•
• Repair or Replace
Shorted or Grounded Fan Motor
• •
• Test Motor Windings
Improper Cooling Anticipator • Check Resistance of Anticipator
Shortage or Refrigerant • • • • Test For Leaks, Add Refrigerant
Restricted Liquid Line •
• • • Replace Restricted Part
Undersized Liquid Line • • • Replace Line
Undersized Suction Line • Replace Line
Not Enough Air across Indoor Coil • • • • Speed Blower, Check Duct Static Pressure
Too Much Air across Indoor Coil • Reduce Blower Speed
Overcharge of Refrigerant • •
· • • Recover Part of Charge
Noncondensibles • • • Recover Charge, Evacuate, Recharge
Recirculation of Condensing Air • •
• Remove Obstruction to Air Flow
Infiltration of Outdoor Air • • •
Check Windows, Doors, Vent Fans, Etc.
Improperly Located Thermostat
•
Relocate Thermostat
Air Flow Unbalanced • • Readjust Air Volume Dampers
System Undersized
• • Refigure Cooling Load
Broken Internal Parts
• Replace Compressor
Broken Valves • Test Compressor Efficiency
Inefficient Compressor • •
• Test Compressor Efficiency
High Pressure Control Open • Reset and Test Control
Unbalanced Power, 3PH • •
• Test Voltage
Wrong Type Expansion Valve • • • Replace Valve
Expansion Valve Restricted
• • • • • • Replace Valve
Oversized Expansion Valve
• • Replace Valve
Undersized Expansion Valve • • • • • Replace Valve
Expansion Valve Bulb Loose • • Tighten Bulb Bracket
Inoperative Expansion Valve • • •
Check Valve Operation
Loose Hold-down Bolts • Tighten Bolts
No Cooling
   

P re ssu re s


NOTICE



Amana ASXN4 Series Specifications

General

Brand	Amana
Model	ASXN4 Series
Category	Heat Pump
Language	English