Cooling /Heat Pump- Service Analysis Guide - Goodman R-410A Service Instructions Manual

SERVICING SERVICING

COOLING /HEAT PUMP- SERVICE ANALYSIS GUIDE

Complaint
POSSIBLE CAUSE
DOTS IN ANALYSIS GUIDE
INDICATE SYMPTOM
"POSSIBLE CAUSE"
Pow er Failure
Blow n Fuse
Unbalanced Pow er, 3PH
Loose Connection
Shorted or Broken Wires
Open Fan Overload
Faulty Thermostat
Faulty Transformer
Shorted or Open Capacitor
Internal Compressor Overload Open
Shorted or Grounded Compressor
Compressor Stuck
Faulty Compressor Contactor
Compressor High Stage Not Working
Open Control Circuit
Low Voltage
Faulty Evap. Fan Motor
Shorted or Grounded Fan Motor
Improper Cooling Anticipator
Shortage of Refrigerant
Restricted Liquid Line
Open Element or Limit on Elec. Heater
Dirty Air Filter
Dirty Indoor Coil
Not enough air across Indoor Coil
Too much air across Indoor Coil
Overcharge of Refrigerant
Dirty Outdoor Coil
Noncondensibles
Recirculation of Condensing Air
Infiltration of Outdoor Air
Improperly Located Thermostat
Air Flow Unbalanced
System Undersized
Broken Internal Parts
Broken Valves
Inefficient Compressor
Loose Hold-dow n Bolts
Faulty Reversing Valve
Faulty Defrost Control
Faulty Defrost Thermostat
Flow rator Not Seating Properly
No Cooling
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Cooling or Heating Cycle (Heat Pump)
System Operating
Unsatisfactory Cooling/Heating
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Pressures
Test Method Remedy
Test Voltage
Inspect Fuse Size & Type
Test Voltage
Inspect Connection - Tighten
Test Circuits With Ohmmeter
Test Continuity of Overload
Test continuity of Thermostat & Wiring
Check control circuit w ith voltmeter
Test Capacitor
Test Continuity of Overload
Test Motor Windings
Use Test Cord
Test continuity of Coil & Contacts
Test Voltage to Unloader Plug, Test Plug
Test Control Circuit w ith Voltmeter
Test Voltage
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Repair or Replace
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Test Motor Windings
Check resistance of Anticipator
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Test For Leaks, Add Refrigerant
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Remove Restriction, Replace Restricted Part
Test Heater Element and Controls
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Inspect Filter-Clean or Replace
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Inspect Coil - Clean
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Check Blow er Speed, Duct Static Press, Filter
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Reduce Blow er Speed
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Recover Part of Charge
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Inspect Coil - Clean
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Recover Charge, Evacuate, Recharge
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Remove Obstruction to Air Flow
Check Window s, Doors, Vent Fans, Etc.
Relocate Thermostat
Readjust Air Volume Dampers
Refigure Cooling Load
Replace Compressor
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Test Compressor Efficiency
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Test Compressor Efficiency
Tighten Bolts
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Replace Valve or Solenoid
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Test Control
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Test Defrost Thermostat
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Check Flow rator & Seat or Replace Flow rator
Heating Cycle Only (Heat Pump)
S-1
S-1
S-1
S-2, S-3
S-2, S-3
S-17A
S-3
S-4
S-15
S-17A
S-17B
S-17D
S-7, S-8
S-17C
S-4, S-11, S-12
S-1
S-16
S-16A,D
S-3B
S-101,103
S-112
S-26,S-27
S-200
S-200
S-113
S-114
S-115
S-104
S-104
S-21, 122
S-24
S-25
S-111
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