Bradford-White Corp CX, D)W275T*(BN, C(S service manual IGNITER/ELECTRODE Testing Replacement

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SERVICE PROCEDURE AG-II

Pilot Assembly Inspection, Cleaning

and Replacement For Models Using

Honeywell Gas Control

IGNITER/ELECTRODE TESTING AND

REPLACEMENT

With the pilot not in operation (no pilot flame) the igniter and electrode circuit function can be observed by opening the combustion chamber door and viewing whether there is a sparking action.

Step 1. Make sure the gas control is in the “OFF” position.

 

Step 2.

Remove outer jacket door.

 

 

Step 3.

Repeatedly Depress

 

Slide open or remove the inner

Igniter

 

 

combustion chamber door.

 

 

Step 4. Depress the igniter button repeatedly while viewing

 

 

the spark through the open door of the combustion

 

 

 

chamber. If there is no spark proceed to Step 5.

 

 

 

If there is a spark, the igniter is OK.

 

 

Step 5.

Remove the lead wire from the igniter at the connector

Figure 14

 

provided for this. Hold the igniter lead from the gas valve

 

 

close to an unpainted metal surface (such as the burner feedline)

 

and depress the igniter button (see Figure 15). If there is a spark the igniter is OK. If no spark is present the igniter is not functioning and the gas control

must be replaced per Service Procedure AG-III page 18.

Look for spark in

the gap

Figure 15

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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 A Closed Circuit test Open Circuit Thermopile TestingClosed Circuit Thermopile Testing An Open 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