Bradford-White Corp CX, D)W275T*(BN LED Status Control Status Probable Cause Service Procedure

Page 5

Troubleshooting Chart (cont.)

For Models Using Honeywell Gas Control

LED Status

Control Status

Probable Cause

 

 

 

 

 

Service

Procedure

Five flashes and a three second pause.

Seven flashes and a three second pause.

Eight flashes and a three second pause.

Thermowell fault

Gas control fault detected.

Pilot flame remains on while gas control is in the “OFF” position.

1.Damage to thermowell

wires.

2. Thermowell sensor resistance out of range.

1.Gas control needs to be reset.

2.Gas control is wet or physically damaged.

Pilot valve stuck in the open position.

See Service Procedure

AG-III, Page 16

Lite pilot per the instructions located on the lighting instructions label or the lighting instructions located in the installation and operation manual.

Replace gas control. See Service Procedure

AG-III, Page 18.

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Contents Service Manual Table of Contents Troubleshooting Chart LED Status Control Status Probable Cause LED Status Control Status Probable Cause Service Procedure Thermocouple Replacement Service Procedure AG-IOpen Circuit Thermocouple Testing Closed Circuit Thermopile Testing Open Circuit Thermopile TestingAn Open Circuit test A Closed Circuit testThermopile Replacement Step Turn off gas supply to water heater. Rotate knob Pilot Assembly Inspection Cleaning and Replacement IGNITER/ELECTRODE Testing Replacement Line Pressure Service Procedure AG-IIIGas Control Testing and Replacement Magnet Assembly Testing Robertshaw Control Thermocouple TestingMagnet Assembly Testing White Rodgers Control GAS Control Replacement ECO Energy Cut Off TestingInstallation of gas control Honeywell Thermowell Testing Determine Water Heater Tank Temperature Honeywell GAS Control Removal from Thermowell Honeywell GAS Control & Thermowell RemovalHoneywell GAS Control Assembly to Thermalwell Cast Iron Burner Adjustment Service Procedure AG-IVBurner Cleaning Steel & Cast Iron Burner Cleaning Diptube Inspection and Replacement Service Procedure AG-VTurn gas control knob to OFF position Anode Inspection and ReplacementPage Page