Carrier 58PHA/PHX instruction manual Troubleshooting Guide

Page 53

 

 

 

NO

 

 

 

 

 

 

 

 

 

Isdoorswitchclosed?

Iscircuitbreakerclosed?

YES

Checkforcontinuityinwirefromcircuitbreaker tofurnace.

ClosecircuitbreakerandgobacktoSTART.

Checkroomthermostator interconnectingcable.

NO

Is24VpresentatW,Y1(ifpresent),Y/Y2or Gthermostatterminalsonthefurnacecontrol?

YES

Disconnectallthethermostatwiresfromthe furnacecontrol.

Doestheproblemrepeatwhenusing ajumperwire?

NO

Thethermostatisnotcompatiblewiththe furnacecontrol.Eitherinstallaballastresistor, connecttheCom24Vthermostatterminalto thethermostat,orreplacethethermostat.

NO

NO

 

 

 

 

 

NO

 

 

YES

 

 

58PHA

Isdoorswitchclosed?

YES

switch?

YES

 

 

 

Isthere115Vgoingto

 

Replacedoorswitch.

Replacetransformer.

NO

 

NO

 

 

 

Isthere115VatL1andL2?

YES

Isthere24VatSEC-1andSEC-2?

YES

Replacefurnacecontrol.

Checkforcorrectlinevoltagepolarity.Ifunits aretwinned,checkforproperlow-voltage (24V)transformerphasing.

NO

 

 

 

 

YES

NO To recall status code briefly remove and reconnect one RED wire from the draft safeguard switch to display stored status code. On RED LED control do not remove power or blower access panel before initiating status code recall. You can also recall the previous status code by momentarily shorting the TEST/TWIN terminal to Com24V terminal until the LED goes out. LED will flash the status code of the previous fault or status code #11 (1 short and 1 long flash) if there was no previous fault. After the control repeats the code 4 times, the control will go through a brief component test sequence. The inducer will start and run for the entire component test. The HSI, blower motor FAN speed (AMBER LED boards only) HEAT speed, and COOL speed will run for 10 – 15 seconds each. Gas valve and humidifier will not be turned on.

DoesthecontrolrespondtoW,Y1(ifpresent), Y/Y2,andG(24V) thermostatsignals?

YES

Runsystemthroughaheatingorcoolingcycle tocheckoperation.Statuscodesareerased after72hours.OnREDLEDboardsstored statuscodescanalsobeerasedwhenever (115Vor24V)isinterrupted.

Replacefurnacecontrol.

NO

 

 

 

 

statuscode

 

 

 

 

aprevious

#11?

 

 

 

Wasthere

otherthan

 

 

 

YES

 

 

 

 

START

IsLEDstatuslighton?

YES

IsLEDstatuslightblinkingrapidlywithouta pause?

NO

IsLEDstatuslightblinkingON/OFFslowly withacombinationofshortandlongflashes?

YES

Determinestatuscode.Thestatuscodeisa 2digitnumberwiththefirstdigitdetermined bythenumberofshortflashesandthesecond digitbythenumberoflongflashes?

that

statuscode

 

Gotosectionbelowforthe

wasflashed.

A02106A

Fig. 60 - Troubleshooting Guide

53

Image 53
Contents Ama Furnace Reliability Hazard Safety ConsiderationsCUT Hazard IntroductionClearances to Combustibles Codes and StandardsVenting Electrostatic Discharge ESD Precautions ProcedureCarbon Monoxide Poisoning Hazard LocationGeneral Personal Injury AND/OR Property Damage Hazard Electrical Operation HazardFire Hazard AIR for Combustion VentilationFurnace Corrosion Hazard Location Relative to Cooling EquipmentACH Combination of Indoor and Outdoor Air InstallationBottom Return Air Inlet Side Return Air InletLeveling Legs Downflow InstallationA08556 Suspended Furnace Support Opening Dimensions In. mmPlatform Furnace Support Roll-Out ProtectionAIR Ducts Filter Arrangement Carbon Monoxide and Poisoning HazardGeneral Requirements Ductwork Acoustical Treatment Supply Air ConnectionsUpflowdownflow Horizontal Horizontal Suspension with Straps Furnace Overheat Hazard Return Air ConnectionsGAS Piping Fire or Explosion Hazard Maximum Capacity of Pipe Air Delivery CFM With FilterUpflow Return Air Configurations and Restrictions Horizontal Return Air Configurations and Restrictions Electrical Shock and Fire Hazard Electrical DataElectrical Connections Electrical Shock Hazard Furnace MAY not Operate WiringBOX Relocation Electrical Connection to J-BOXBX Cable Installation in Furnace J-BOX Power Cord Installation in Furnace J-BOXAccessories VentingFurnace Control Masonry Chimney Requirements General Venting RequirementsSingle-Stage Furnace with Single-Speed Air Con Ditioner Humidfier Internal Area of Chimney Appliance Application RequirementsChimney Inspection Chart Sidewall Venting Additional Venting RequirementsBurn Hazard Upflow Application-Vent Elbow Up See Notes 1,2,4,5,7,8,9 on See Notes 1,2,4,5,7,8,9 Venting Notes for Figures Using Tin Snips to Cut Tie PointsRounded End of Knockout Furnace Damage Hazard START-UP, ADJUSTMENT, and Safety CheckFire and Explosion Hazard Altitude Derate Multiplier for U.S.A CanadaFollow exclusively the National Fuel Gas Code Gas Control Valve Furnace Overheating Hazard Check Safety ControlsSpeed Selection Gas Rate Cu Ft./Hr ChecklistA08220 A08220A Electrical Controls and Wiring Electrical Shock Hazard Service and Maintenance ProceduresFIRE, INJURY, or Death Hazard Electrical SHOCK, Fire or Explosion HazardA08221 Service Cleaning AND/OR Replacing AIR Filter Care and Maintenance Fire or Explosion HazardCarbon Monoxide Poisoning Fire Hazard Filter Size Information In. / mmUnit Damage Hazard Cleaning Heat ExchangerIgniter Position-Side View Sequence of Operation Cleaning Heat Exchanger CellThermidistat Mode Cooling ModeContinuous Blower Mode Two-Speed CoolingHeat pump Wiring DiagramsTroubleshooting Wiring Diagram Troubleshooting Guide Catalog No 58PHA---03SI