Amana GSC13060 Service Manual download pdf (Page 17)

TROUBLESHOOTING CHART

Complaint

System

Operating

Pressures

POSSIBLE CAUSE

DOTS IN ANALYSIS

GUIDE INDICATE

"POSSIBLE CAUSE"

SYMPTOM

System will not start

Compressor will not start - fan runs

Comp. and Cond. 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/htg

Too cool and then too warm

Not cool enough on warm days

Certain areas too cool, others too warm

Compressor is noisy

System runs - blows cold air in heating

Unit will not terminate defrost

Unit will not defrost

Low suction pressure

Low head pressure

High suction pressure

High head pressure

Test Method

Remedy

See Service Procedure Ref.

Power Failure

•

Test Voltage S-1

Blown Fuse

•••

Inspect Fuse Size & Type S-1

Unbalanced Power, 3PH

•••

Test Voltage S-1

Loose Connection

•••

Inspect Connection - Tighten S-2, S-3

Shorted or Broken Wires

••••••

Test Circuits With Ohmmeter S-2, S-3

Open Fan Overload

••

Test Continuity of Overload S-17A

Faulty Thermostat

••• •

Test Continuity of Thermostat & Wiring S-3

Faulty Transformer

••

Check Control Circuit with Voltmeter S-4

Shorted or Open Capacitor

• ••••

Test Capacitor S-15

Internal Compressor Overload Open

•

♦

Test Continuity of Overload S-17A

Shorted or Grounded Compressor

••

Test Motor Windings S-17B

Compressor Stuck

•••

♦

Use Test Cord S-17D

Faulty Compressor Contactor

•••

Test Continuity of Coil & Contacts S-7, S-8

Faulty Fan Relay

•

Test Continuity of Coil And Contacts S-7

Open Control Circuit

•

Test Control Circuit with Voltmeter S-4

Low Voltage

•••

Test Voltage S-1

Faulty Evap. Fan Motor

••

♦

Repair or Replace S-16

Shorted or Grounded Fan Motor

••

Test Motor Windings S-16

Improper Cooling Anticipator

••

Check Resistance of Anticipator S-3B

Shortage of Refrigerant

••

♦

••

Test For Leaks, Add Refrigerant S-101,103

Restricted Liquid Line

•• •• •

Remove Restriction, Replace Restricted Part S-112

Open Element or Limit on Elec. Heater

♦

Test Heater Element and Controls S-26,S-27

Dirty Air Filter

••• •

♦

Inspect Filter-Clean or Replace

Dirty Indoor Coil

••• •

♦

Inspect Coil - Clean

Not enough air across Indoor Coil

••• •

♦

Check Blower Speed, Duct Static Press, Filter S-200

Too much air across Indoor Coil

♦

•

Reduce Blower Speed S-200

Overcharge of Refrigerant

•• •

♦

••

Recover Part of Charge S-113

Dirty Outdoor Coil

•• •

♦

•

Inspect Coil - Clean

Noncondensibles

••

♦

•

Recover Charge, Evacuate, Recharge S-114

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 S-115

Broken Valves

•• ••

Test Compressor Efficiency S-104

Inefficient Compressor

•

♦

••

Test Compressor Efficiency S-104

Wrong Type Expansion Valve

••• • ••

♦

Replace Valve S-110

Expansion Device Restricted

••• • •• •

Remove Restriction or Replace Expansion Device S-110

Oversized Expansion Valve

••

Replace Valve

Undersized Expansion Valve

••• • •

Replace Valve

Expansion Valve Bulb Loose

••

Tighten Bulb Bracket S-105

Inoperative Expansion Valve

•• •

Check Valve Operation S-110

Loose Hold-down Bolts

•

Tighten Bolts

Faulty Reversing Valve

•

♦

Replace Valve or Solenoid S-21, 122

Faulty Defrost Control

•

♦

♦♦ ♦

Test Control S-24

Faulty Defrost Thermostat

♦

♦♦

♦

Test Defrost Thermostat S-25

Flowrator Not Seating Properly

•••

Check Flowrator & Seat or Replace Flowrator S-111

•

Cooling or Heating Cycle (Heat Pump)

♦

COOLING/HP ANALYSIS CHART

No Cooling Unsatisfactory Cooling/Heating

Heating Cycle Only (Heat Pump)

1 ... 16 17 18 ... 52

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Amana GSC13060 Service Manual Page 17

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