Goodman Mfg RT6100004R13 manual Chart from Previous

Page 40

40

 

 

 

CHART CONTINUED FROM PREVIOUS PAGE

 

 

 

 

 

 

 

 

 

 

 

Troubleshooting Chart for ECM Variable Speed Air Circulator Blower Motors

 

Symptom

 

Fault Description(s)

Possible Causes

Corrective Action

Cautions and Notes

 

 

 

 

 

 

 

 

 

 

 

 

- Check low voltage (Thermostat)

- Turn power OFF prior to repair.

 

 

 

- Stays at low CFM despite

- 24 Vac wires miswired or loose.

wires and connections.

Wait 5 minutes after

 

 

 

- Verify fan is not in delay mode -

disconnecting power before

 

 

 

system call for cool

- "R" missing/not connected at motor.

 

 

 

wait until delay complete.

opening motor.

 

 

 

or heat CFM.

- Fan in delay mode.

 

 

 

- Perform motor/control replacement

- Handle electronic motor/control

 

 

 

 

 

 

 

 

 

 

check, ECM motors only.

with care.

 

- Motor starts,

 

 

 

 

 

 

 

 

 

 

- Turn power OFF prior to repair.

 

but runs

 

 

 

- Is fan in delay mode? - wait until delay time complete.

Wait 5 minutes after

 

erratically.

 

 

- "R" missing/not connected at motor.

disconnecting power before

 

 

- Stays at high CFM.

- Perform motor/control replacement check, ECM

 

 

 

- Fan in delay mode.

opening motor.

 

 

 

 

motors only.

 

 

 

 

 

- Handle electronic motor/control

 

 

 

 

 

 

 

 

 

 

 

 

with care.

 

 

 

 

 

 

 

 

 

 

- Blower won't shut off.

- Current leakage from controls

- Check for Triac switched t'stat

- Turn power OFF prior to repair.

 

 

 

into G, Y, or W.

or solid state relay.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- High static creating high blower speed.

- Check/replace filter.

 

 

 

 

 

- Incorrect supply or return ductwork.

 

 

 

 

- Air noise.

- Check/correct duct restrictions.

- Turn power OFF prior to repair.

 

 

 

- Incorrect or dirty filter(s).

 

 

 

 

- Adjust to correct blower speed setting.

 

 

 

 

 

- Incorrect blower speed setting.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- Loose blower housing, panels, etc.

- Check for loose blower housing,

 

 

- Excessive

 

 

- High static creating high blower

panels, etc.

 

 

 

- Noisy blower or cabinet.

speed.

- Check for air whistling thru seams in

- Turn power OFF prior to repair.

 

noise.

 

 

- Air leaks in ductwork, cabinets,

ducts, cabinets or panels.

 

 

 

 

 

or panels.

- Check for cabinet/duct deformation.

 

 

 

 

 

 

 

 

 

 

 

 

- High static creating high blower speed.

- Does removing panel or filter

 

 

 

 

 

reduce "puffing"?

 

 

 

 

- "Hunts" or "puffs" at

- Incorrect or dirty filter(s).

 

 

 

 

- Check/replace filter.

- Turn power OFF prior to repair.

 

 

 

high CFM (speed).

- Incorrect supply or return ductwork.

 

 

 

- Check/correct duct restrictions.

 

 

 

 

 

- Incorrect blower speed setting.

 

 

 

 

 

- Adjust to correct blower speed setting.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- Motor failure or

 

 

- Turn power OFF prior to repair.

 

 

 

 

 

Wait 5 minutes after

 

- Evidence of

 

malfunction has

- Moisture in motor/control module.

- Replace motor and perform

disconnecting power before

 

Moisture.

 

occurred and moisture

Moisture Check.*

opening motor.

 

 

 

 

 

 

is present.

 

 

- Handle electronic motor/control

 

 

 

 

 

 

with care.

 

 

 

 

 

 

 

 

*Moisture Check

oriented "down" (or as recommended by equipment manufacturer).

- Arrange harnesses with "drip loop" under motor.

 

 

- Connectors are

 

 

- Is condensate drain plugged?

 

- Check for low airflow (too much latent capacity).

 

 

- Check for undercharged condition.

 

- Check and plug leaks in return ducts, cabinet.

 

Note: You must use the correct replacement control/motor module since they are factory programmed for specific operating modes. Even though they look alike, different modules may have completely different

functionality. The ECM variable speed motors are c

Important Note: Using the wrong motor/control module voids all product warranties and may produce unexpected results.

SERVICING

Image 40
Contents Service Instructions Table of Contents Important InformationSafe Refrigerant Handling Product Identification Split System Air Conditioners R-22Split 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 Accessories ASC01CPKF24 CPKF36 CPKF42 CPKF48 CPKF60 CPKF61 Expansion Valve Kits FSK01A Coil Accessories Product Design Condensing UnitProduct Design System Operation HeatingCooling Cycle System Operation Indoor Coil Outdoor Thermostatic Expansion Valve AFE18-60A Control Board DescriptionTroubleshooting Chart COOLING/HP Analysis ChartServicing Table of Contents Checking Voltage Checking Wiring Checking THERMOSTAT, WIRING, and Anticipator3A Thermostat and Wiring Servicing3B Cooling Anticipator 3C Heating AnticipatorChecking Time Delay Relay Testing Coil CircuitChecking Transformer Control Circuit Checking Cycle ProtectorTesting Compressor Contactor Testing FAN RelayChecking Contactor AND/OR Relays Checking Contactor ContactsCopeland Comfort Alert Diagnostics Applies to ASC13 & ASH13Diagnostics Table Red TripHard Start KIT Wiring Testing Capacitor ResistanceChecking Loss of Charge Protector Checking CapacitorTesting Capacitance 15B Capacitance Check16A Checking FAN and Blower Motor Windings PSC Motors 16B Checking FAN and Blower Motor ECM Motors16D ECM CFM Adjustments 16C Checking ECM Motor WindingsChart on Next Chart from Previous Itc h 16E Checking GE X13TM Motors Checking Compressor17A Resistance Test GE X13TM Motor ConnectionsTesting Compressor Windings 17B Ground Test17D Operation Test Compressor Ground TestTesting Crankcase Heater Optional Item Testing Defrost ControlTesting Defrost Thermostat Checking Reversing Valve and Solenoid40 AR*F & MBR Electronic Blowers Time Delay Relay Sequence of OperationAR*F & MBR With Single Stage Condensers AR*F & MBR With Single Stage Heat PumpsAEP* & MBE Electronic Blower Time Delay Relay 41 AEP* & MBE with Single Stage CON Densers41A AEP* & MBE with Single Stage Heat Pumps Electric Heater Optional Item Temperature Rise F @ CFM 61A Checking Heater Limit ControlsLeak Testing Nitrogen or NITROGEN-TRACED 61B Checking Heater Fuse Link Optional Electric HeatersChecking Heater Elements Refrigeration Repair PracticeCharging EvacuationEvacuation Checking Compressor Efficiency An inaccurately charged system will cause future prob- lems105B Thermostatic Expansion Valve Overfeeding UnderfeedingSuperheat Thermostatic Expansion ValvesChecking Subcooling Checking Expansion Valve OperationOvercharge of Refrigerant Checking Restricted Liquid LineNON-CONDENSABLES Compressor BurnoutSuction Line Drier Clean-Up Method Refrigerant PipingInstallation Requirements Reversing Valve Replacement System ChargingAIR Handler External Static Coil Static Pressure DropTotal External Static Static Pressure DropALL Fuel System AFE18-60A Control Board Accessories Wiring DiagramsALL 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