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Trane DX1B060A9H31B, UX1C100A9H41B, UX1B080A9H31B Integrated Furnace Control Error Flash Codes

Models: UX1B060A9H31B DX1B040A9H21B DX1B060A9H31B DX1B080A9H31B UX1B040A9H21B UX1B080A9H31B UX1C100A9H41B DX1D120A9H51B UX1D120A9H51B DX1C100A9H31B

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Installer’s Guide

INTEGRATED FURNACE CONTROL ERROR FLASH CODES

	Flashing Slow ---	Normal - No call for Heat
	Flashing Fast ---	Normal - Call for Heat
	Continuous ON ---	Replace IFC
	Continuous OFF ---	Check Power
	2 Flashes ---	System Lockout (Retries or Recycles exceeded)
		Draft Pressure Error - Possible problems:
	3 Flashes ---	a) Venting problem
	3 Flashes ---	b) Pressure switch problem
		b) Pressure switch problem
		c) Inducer problem
	4 Flashes ---	Open Temperature Limit Circuit
	5 Flashes ---	Flame sensed when no flame should be present
	6 Flashes ---	115 volt AC power reversed, poor grounding or system voltage too low
	7 Flashes ---	Gas valve circuit error
	8 Flashes ---	Low flame sense signal
	9 Flashes ---	Check Ignitor Circuit and Line "N" to 24VAC "Common" voltage (≤ 2 volts)
	9 Flashes ---	[possible grounding problem]
		[possible grounding problem]

18-CD22D1-8

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Trane DX1B060A9H31B, UX1C100A9H41B, UX1B080A9H31B, UX1B060A9H31B, UX1D120A9H51B Integrated Furnace Control Error Flash Codes

Contents

Installer’s Guide Carbon Monoxide Poisoning Hazard Safety Section Installer’s Guide Contents Installer’s Guide UX1-H Outline Drawing DX1-H Downflow Installations Upflow InstallationHorizontal Installation Subbase Cross Section Outside AIR is Recommended AIR for Combustion and Ventilation Confined Space Return AIR Duct Systems Duct Connections Optional Filter Rack Installation for BOT- TOM Return Typical Upflow Return AIR Filter InstallationsReturn AIR Filters Upflow Furnace only Airflow Typical Downflow Furnace Return AIR Filter Installations Alternate Upflow Filter Clip Bracket Installation KIT09224Models Cabinet Filter Numbers QTY & Size General Venting Vent Fitting Material Plastic PVC Vent Fitting MaterialBonding of PVC Vent and Inlet AIR Connections Horizontal Venting Upflow Furnace Inside Corner Detail Possible Configurations for TWO Pipe Venting Systems BAYVENT200B Horizontal Venting Through WallCombustible Material Wall Noncombustible Material Wall BAYAIR30AVENTA BAYVENT200B Direction of Stainless Steel Fitting Downward Venting Installer’s Guide EE Caution Used Through Chimney That Vents Another GAS Appliance Vertical Applications Condensate Drain InstructionsUpflow Vertical Horizontal Applications Downflow Downflow VerticalVertical Downflow Horizontal Twinning Furnaces Electrical Connections Stage Heating only Thermostat Stage Heat / 1 Stage Cool Thermostat GAS Piping Upflow Left Hand GAS Piping Combustion and Input Check Orifice Sizes High Altitude Derate Final Manifold Pressure Settings Reinstallation of the Burner BOX Cover Start UP and AdjustmentPreliminary Inspections Sequence of Operation Lighting Instructions Room AIR Thermostat Heat Anticipator Adjustment Airflow AdjustmentBurner BOX Temperature Limit Device Power Failure Limit switch must be reset by a qualified servicer Reset After Burner BOX Limit Shutdown Integrated Furnace Control Error Flash Codes Trane