Bradford-White Corp TGHE-160I-N(X), TGHE-1991-N(X) Code Code Description Thermal Fuse

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Code

Code Description

14

Thermal Fuse

16

Over Temperature

 

Warning

25

Condensate Trap

 

Error

31

Burner Sensor Error

32

Outgoing Water

 

Temperature Sensor

 

Fault

33

Heat Exchanger

 

Outgoing Temperature

 

Sensor Fault

52

Modulating Solenoid

 

Valve Signal Abnormal

61

Combustion Fan

 

Failure

65

Water Flow Control

 

Fault

71

SV0, SV1, SV2, and

 

SV3 Solenoid Valve

 

Circuit Fault

72

Flame Sensing Device

 

Fault

73

Burner Sensor Circuit

 

Error

LC

Scale Build-up in Heat

 

Exchanger (when

 

checking maintenance

 

code history, “00” is

 

substituted for “LC”)

Remedy

Check gas type of unit and ensure it matches gas type being used. Check for restrictions in air flow around unit and vent terminal.

Check for low water flow in a circulating system causing short-cycling. Ensure dip switches are set to the proper position.

Check for foreign materials in combustion chamber and/or exhaust piping. Check heat exchanger for cracks and/or separations.

Check heat exchanger surface for hot spots which indicate blockage due to scale build- up. Refer to instructions in manual for flushing heat exchanger.

Measure resistance of safety circuit.

Ensure high fire and low fire manifold pressure is correct. Check for improper conversion of product.

Check for restrictions in air flow around unit and vent terminal.

Check for low water flow in a circulating system causing short-cycling. Check for foreign materials in combustion chamber and/or exhaust piping. Check for clogged heat exchanger.

Condensate container is full.

Check condensate drain for blockage. Replace condensate trap.

Measure resistance of sensor.

Replace sensor.

Check sensor wiring for damage. Measure resistance of sensor. Clean sensor of scale build-up. Replace sensor.

Check sensor wiring for damage. Measure resistance of sensor. Clean sensor of scale build-up. Replace sensor.

Check modulating gas solenoid valve wiring harness for loose or damaged terminals. Measure resistance of valve coil.

Ensure fan will turn freely.

Check wiring harness to motor for damaged and/or loose connections. Measure resistance of motor winding.

The water flow control valve has failed to close during the bath fill function. Immediately turn off the water and discontinue the bath fill function. Contact a state qualified or licensed contractor to service the water heater.

Replace the PC board.

Ensure flame rod is touching flame when unit fires. Check all wiring to flame rod for damage.

Remove flame rod and check for carbon build-up; clean with sand paper.

Check inside burner chamber for any foreign material blocking flame at flame rod. Measure micro amp output of sensor circuit with flame present.

Replace flame rod.

Check sensor wiring and PC board for damage. Replace sensor.

Flush heat exchanger. Refer to instructions in manual. Replace heat exchanger.

NOTE: The LC code is the only error code that will allow the unit to keep running. The display will alternate between the LC code and the temperature setting. The controller will continue to beep. The LC code will reset if power is turned off and then on.

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Contents TGHE-160I-NX & TGHE-199I-NX Table of Contents Page Page If YOU Smell GAS Section II Specifications ModelDimensions Pressure Drop psi Water Flow Rate gpm Section III Installation Instructions Remove Carton UnpackingWater Heater Location Mount Water Heater on the Wall State Regulations Important In the State of Massachusetts 248CMR 4.00Instructions for Connections Section IV Water ConnectionsWater Quality Page Approximate TIME/TEMPERATURE Relationships in Scalds Recommended Piping for a Basic Installation Recommended Piping for a Circulation Systems Recommended Piping for Power Failure Freeze Protection Recommended Piping for Freeze ProtectionPressure Relief Valve Page Page Section V Venting Venting Vent / Air Intake Terminal Locations Direct Vent Terminal LocationVenting System Installation Venting System LayoutPrior to the Installation of the EverHot Direct Vent System Horizontal Direct Vent InstallationsIllustration Showing a Horizontal Termination Installation Vertical Direct Vent Installations Vertical Vent InstallationsCombustion Blower Dip Switch Settings Dip SwitchInstallation of Venting System Components Condensate Recommended Vent/Air Intake Terminal PositionJoint Connection Coping with CondensationIllustration Showing How to Shorten Vent Extensions Shortening of Vent ExtensionsVenting Parts & Dimensions Components Needed for Direct Vent ApplicationsVent Pipe Clamp, p/n Page Measure Dimension to Fit Illustration Showing How to Properly Cut a Vent ExtensionFinal Installation of the Vent System Illustration Showing How to Cut the Vertical Vent to Fit Cut the Vent to FitHigh Altitude Installations Mounting the Vent System Vertical DischargePage Venting Suppliers Manufacturer ProductSection VI GAS Connections Gas GAS Meter Size Natural GAS onlyGAS Pressure Regulation Specific CorrectionInitial Operation and Testing Installer only Section VII Electrical Connections Ladder Diagram Wiring Diagram for Tghe Models Temperature Controls Page Securing screw Wiring hole 21/32 Installation of Remote Controls OptionalIllustration Showing Where to Connect Remote Control Harness Resistance Connector Pin Nos Initial Operation and Testing of Controls Installer onlyTroubleshooting Electrical Wire ColorHeat Exchanger and Outgoing Water Temperature Thermistors Flame RodFrost Protection Amp FusesSequence of Operation Section Viii Operating InstructionsGeneral Instructions To Fill the Water Heater What to do if YOU Smell GAS Lighting Instructions For Your Safety Read Before OperatingProperty damage, personal injury or loss of life Operation InstructionsTemperature Adjustment Turning OFF the Water Heater for AN Extended Period of TimePage Approximate TIME/TEMPERATURE Relationships in Scalds ScaldingFirst AID for Scalds Code Code DescriptionCode Code Description Thermal Fuse Code Code Description Nothing happens Section IX Maintenance Burner Flame AppearancePage Circulating Pump Water HeaterPage Section X Parts List TGHE-160I TGHE-199I Description QuantityPage TGHE-160I TGHE-199I Page TGHE-160I TGHE-199I Page TGHE-160I TGHE-199I Section XI Warranty What should you do to keep the warranty in effect? What will we do to correct problems?How do you get warranty assistance? What will we not do?Page Page Fax/215-641-1670 Parts Fax/215-641-2180