Goodman Mfg RT6100004R13 manual Checking Contactor AND/OR Relays, Checking Contactor Contacts

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SERVICING

S-7 CHECKING CONTACTOR AND/OR RELAYS

WARNING

HIGH VOLTAGE!

Disconnect ALL power before servicing or installing. Multiple power sources may be present. Failure to do so may cause property damage, personal injury

or death.

The compressor contactor and other relay holding coils are wired into the low or line voltage circuits. When the control circuit is energized, the coil pulls in the normally open contacts or opens the normally closed contacts. When the coil is de-energized, springs return the contacts to their normal position.

NOTE: Most single phase contactors break only one side of the line (L1), leaving 115 volts to ground present at most internal components.

1.Remove the leads from the holding coil.

2.Using an ohmmeter, test across the coil terminals.

If the coil does not test continuous, replace the relay or contactor.

S-8 CHECKING CONTACTOR CONTACTS

WARNING

DISCONNECT ELECTRICAL POWER SUPPLY.

Disconnect Electrical Power Supply:

1.Disconnect the wire leads from the terminal (T) side of the contactor.

2.With power ON, energize the contactor.

T2 T1

CC

VOLT/OHM

METER

L2 L1

Ohmmeter for testing holding coil

Voltmeter for testing contacts

TESTING COMPRESSOR CONTACTOR

S-9 CHECKING FAN RELAY CONTACTS

1.Disconnect wires leads from terminals 2 and 4 of Fan Relay Cooling and 2 and 4, 5 and 6 of Fan Relay Heating.

2.Using an ohmmeter, test between 2 and 4 - should read open. Test between 5 and 6 - should read continuous.

3.With power ON, energize the relays.

WARNING

Line Voltage now present.

WARNING

Line Voltage now present.

3.Using a voltmeter, test across terminals.

A. L2 - T1 - No voltage indicates CC1 contacts open. If a no voltage reading is obtained - replace the contactor.

4

3

OHMMETER	5	1
2

TESTING FAN RELAY

4.Using an ohmmeter, test between 2 and 4 - should read continuous . Test between 5 and 6 - should read open.

5.If not as above, replace the relay.

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Contents Service Instructions Important Information Table of ContentsSafe Refrigerant Handling Split System Air Conditioners R-22 Product IdentificationSplit System Air Conditioners R-22 Split System Heat Pumps R-22 Product Identification Single Piece Air Handlers Single Piece Air Handlers MBR/MBE Air Handlers 036 036 120 3642 1824 ASC01 AccessoriesCPKF24 CPKF36 CPKF42 CPKF48 CPKF60 CPKF61 Expansion Valve Kits FSK01A Coil Accessories Condensing Unit Product DesignProduct Design Heating System OperationCooling Cycle System Operation Indoor Coil Outdoor Thermostatic Expansion Valve Description AFE18-60A Control BoardCOOLING/HP Analysis Chart Troubleshooting ChartServicing Table of Contents Checking THERMOSTAT, WIRING, and Anticipator Checking Voltage Checking Wiring3A Thermostat and Wiring Servicing3C Heating Anticipator 3B Cooling AnticipatorTesting Coil Circuit Checking Time Delay RelayChecking Transformer Control Circuit Checking Cycle ProtectorTesting FAN Relay Testing Compressor ContactorChecking Contactor AND/OR Relays Checking Contactor ContactsApplies to ASC13 & ASH13 Copeland Comfort Alert DiagnosticsRed Trip Diagnostics TableTesting Capacitor Resistance Hard Start KIT WiringChecking Loss of Charge Protector Checking Capacitor15B Capacitance Check Testing Capacitance16A Checking FAN and Blower Motor Windings PSC Motors 16B Checking FAN and Blower Motor ECM Motors16C Checking ECM Motor Windings 16D ECM CFM AdjustmentsChart on Next Chart from Previous Itc h Checking Compressor 16E Checking GE X13TM Motors17A Resistance Test GE X13TM Motor Connections17B Ground Test Testing Compressor Windings17D Operation Test Compressor Ground TestTesting Defrost Control Testing Crankcase Heater Optional ItemTesting Defrost Thermostat Checking Reversing Valve and SolenoidSequence of Operation 40 AR*F & MBR Electronic Blowers Time Delay RelayAR*F & MBR With Single Stage Condensers AR*F & MBR With Single Stage Heat Pumps41 AEP* & MBE with Single Stage CON Densers AEP* & MBE Electronic Blower Time Delay Relay41A AEP* & MBE with Single Stage Heat Pumps Electric Heater Optional Item 61A Checking Heater Limit Controls Temperature Rise F @ CFM61B Checking Heater Fuse Link Optional Electric Heaters Leak Testing Nitrogen or NITROGEN-TRACEDChecking Heater Elements Refrigeration Repair PracticeEvacuation ChargingEvacuation An inaccurately charged system will cause future prob- lems Checking Compressor Efficiency105B Thermostatic Expansion Valve Underfeeding OverfeedingSuperheat Thermostatic Expansion ValvesChecking Expansion Valve Operation Checking SubcoolingChecking Restricted Liquid Line Overcharge of RefrigerantNON-CONDENSABLES Compressor BurnoutRefrigerant Piping Suction Line Drier Clean-Up MethodInstallation Requirements System Charging Reversing Valve ReplacementCoil Static Pressure Drop AIR Handler External StaticTotal External Static Static Pressure DropAccessories Wiring Diagrams ALL Fuel System AFE18-60A Control BoardALL Fuel System Control Board AFE18-60A 10kw and Below, One Stage Electric Heat OT/EHR18-60 #2 GRD PLM PLF XFMR-R XFMR-C After Installing Optional Heat KIT, Mark AN X Provided Above HKR Heat Kit GRD PLM PLF Accessories Wiring Diagrams