Bradford White U-100T-88R-3N - Manual (Page 13)

Igniter and Electrode Testing and Replacement
With the pilot not in operation (no pilot flame) you can check the igniter and electrode circuit by viewing pilot
thru the sight glass located on the inner door and observing the spark action.
SERVICE PROCEDURE IV
Igniter and Electrode Testing
and Replacement
Step 1. Remove outer jacket door.
Step 2. Repeatedly depress the igniter button while viewing the pilot thru the sight glass. If a spark is
present, the circuit is OK. If there is no spark, proceed to step 3.
Step 3 Remove white wire from igniter. Hold the igniter lead from the gas valve to an unpainted surface
such as the feedline or gas control and depress the igniter. If there is a spark, the igniter is OK,
the pilot is not functioning and must be replaced, see SERVICE PROCEDURE II for pilot
replacement. If no spark is present the igniter is not functioning and the control must be replaced,
see SERVICE PROCEDURE V
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View Spark
Action Through
Sight Glass
Repeatedly
Depress
Igniter
Igniter Lead
ECO-MAGNUM
75/100-Gallon Atmospheric
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