Spark rod replacement procedure – Bradford White EF-100T-399-3X User Manual
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Spark Rod Replacement Procedure
Step 4.
Fold back insulation in front of combustion assembly
to expose spark rod. (see photo at right)
Step 5.
Disconnect wire lead from spark rod.
Step 6.
Remove the 2 mounting screws (magnetic
tip, long reach Phillips screw driver) and remove
spark rod & gasket from transition base
flange.
Step 7.
Remove any residual gasket material from
transition base flange.
Step 9.
Reassemble combustion system following “Combustion System
Replacement Procedure”.
Step 10. Fold insulation back into place. Be sure no wires are in
contact with burner flange.
Step 8.
Install new spark rod with new gasket provided
using screws from step 6. Arrange spark rod with
hook towards burner (off-center mounting hole towards
the front of the water heater).
Step 9.
Remove combustion system following “Combustion System
Removal Procedure”, and verify spark gap following “Spark
Rod Gap Inspection and Adjustment”.
Step 1.
Position main power switch to “OFF”
Step 2.
Disconnect (unplug) water heater
from 120 volt power source.
Step 3.
Un-latch & remove surround cover
from top of heater.
Step 11. Restore 120 volt power supply to water heater and confirm proper operation following the
lighting instructions on the lighting instruction label or the lighting instructions located in
the installation and operating instruction manual.
Step 12. Replace surround cover on top of
water heater.
WARNING
120 volt potential exposure. Isolate the
appliance and reconfirm power is
disconnected using a multi-meter.
Heater front
Off-center
mounting hole
Transition
base flange
Spark rod
mounting screws
Spark rod
Spark rod
gasket
Arrange hook
of spark rod
towards burner
Spark Rod
WARNING
If spark rod is replaced for any reason,
the combustion system MUST be
removed and the spark gap to the burner
measured and adjusted properly.
WARNING
Spark gap must be set to 3/16" to 1/4".
Failure to set and verify proper spark
gap may result in a delayed ignition
resulting in damage to the water heater.
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