Goodman GSZ16 Installation & Service Reference Download Page 10

10

Troubleshooting Information

For detailed service information refer to the Remote Condensing Unit Service manual.

NOTICE

Units with rotary or reciprocating compressors and non-bleed TXV’s
require a Hard Start Kit.

Complaint

System 

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Test Method

Remedy

Power Failure

Test Voltage

Blown Fuse

• •

Inspect Fuse Size & Type

Unbalanced Power, 3PH

• •

Test Voltage

Loose Connection

Inspect Connection - Tighten

Shorted or Broken Wires

• • • • • •

Test Circuits With Ohmmeter

Open Fan Overload

• •

Test Continuity of Overload

Faulty Thermostat

• •

Test Continuity of Thermostat & 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 & Contacts

Faulty Fan Relay

Test Continuity of Coil And Contacts

Open Control Circuit

Test Control Circuit with Voltmeter

Low Voltage

• •

Test Voltage

Faulty Evap. Fan Motor

Repair or Replace

Shorted or Grounded Fan Motor

Test Motor Windings

Improper Cooling Anticipator

Check Resistance of Anticipator

Shortage of  Refrigerant

• •

• •

Test For Leaks, Add Refrigerant

Restricted Liquid Line

• •

• •

Remove Restriction, Replace Restricted Part

Open Element or Limit on Elec. Heater

Test Heater Element and Controls

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

Too much air across Indoor Coil

Reduce Blower Speed

Overcharge of Refrigerant

• •

• •

Recover Part of Charge

Dirty Outdoor Coil

• •

Inspect Coil - Clean

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

Wrong Type Expansion Valve

• • •

• •

Replace Valve

Expansion Device Restricted

• • •

• •

Remove Restriction or Replace Expansion Device

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

Faulty Reversing Valve

♦ ♦ ♦

♦ ♦ ♦

Replace Valve or Solenoid

Faulty Defrost Control

♦ ♦ ♦ ♦ ♦

Test Control 

Faulty Defrost Thermostat

♦ ♦ ♦ ♦ ♦ ♦ ♦

Test Defrost Thermostat

Flowrator Not  Seating Properly

• •

Check Flowrator & Seat or Replace Flowrator

 

Cooling or Heating Cycle (Heat Pump)

No Cooling

Unsatisfactory Cooling/Heating

Heating Cycle Only (Heat Pump)

Summary of Contents for GSZ16

Page 1: ...lity of the carrier Verify the model number specifications electrical characteristics and accessories are correct prior to installation The distribu tor or manufacturer will not accept claims from dea...

Page 2: ...r springs can be installed between the con densing unit legs or frame and the roof mounting assembly to reduce noise vibration NOTE These units require special location consideration in areas of heavy...

Page 3: ...tance Cond Unit Tons Suct Liq Suct Liq Suct Liq 1 1 2 5 8 1 4 3 4 3 8 3 4 3 8 2 5 8 1 4 3 4 3 8 3 4 3 8 2 1 2 5 8 1 4 3 4 3 8 7 8 3 8 3 3 4 3 8 7 8 3 8 1 1 8 3 8 3 1 2 7 8 3 8 1 1 8 3 8 1 1 8 3 8 4 7...

Page 4: ...ented lines will cause poor performance or compressor damage Do NOT make final refrigerant line connection until plugs are removed from refrigerant tubing NOTE Before brazing verify indoor piston size...

Page 5: ...ch located near the unit do not install the switch on the unit Refer to the installa tion instructions supplied with the indoor furnace air handler for specific wiring connections and indoor unit conf...

Page 6: ...f disabling this function is desired move the jumper from DLY to NORM on the defrost control Adequate refrigerant charge for the matching HSVTC evapora tor coil and 15 feet of lineset is supplied with...

Page 7: ...Charge Adjustment The outdoor temperature must be 60 F or higher Set the room thermostat to COOL fan switch to AUTO and set the tem perature control well below room temperature Purge gauge lines Conne...

Page 8: ...URATED SUCTION TEMPERATURE F LIQUID PRESSURE PSIG R 22 R 410A 200 101 70 210 105 73 220 108 76 225 110 78 235 113 80 245 116 83 255 119 85 265 121 88 275 124 90 285 127 92 295 130 95 305 133 97 325 13...

Page 9: ...nit and refrigerant tubing sizes These adjustments should only be performed by qualified service personnel AdvancedAdjustmentRecommendations SUPERHEATFORMULA SUCTIONLINETEMPERA TURE SATURATEDSUCTIONTE...

Page 10: ...t with Voltmeter Low Voltage Test Voltage Faulty Evap Fan Motor Repair or Replace Shorted or Grounded Fan Motor Test Motor Windings Improper Cooling Anticipator Check Resistance of Anticipator Shortag...

Page 11: ...airflow If cleaning of the outdoor coil becomes necessary hire a qualified servicer Inexperienced people could easily puncture the tubing in the coil Even a small hole in the tubing could eventually c...

Page 12: ...gh not required to get the protection of the standard warranty registering your product is a relatively short process and entitles you to additional warranty protection except that failure by Californ...

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