Step 7: Pilot Spark Test - A.O. Smith BTR 120-400 Service Handbook

STEP 7: PILOT SPARK TEST

CONDITION:
• 24VAC at PV, no pilot.
Visually/audibly check for spark at the pilot assembly.
Note: The pilot burner mounts on the left side of the main burner.
IF
The igniter is not sparking during the 90 second trial
for ignition.
Sparking is present.
Power To Module May Be Interrupted To Reset.
Servicing should only be performed by a Qualified Service Technician
THEN
Check for:
• A 7/64" spark gap.
• Spark cable continuity.
• Ground cable continuity.
• Replace module.
• Check the gas valve.
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