PILOT SYSTEMS
TROUBLE SHOOTING PILOTS - SPARK IGNITION
Symptom: Pilot will not light A. Cause: No spark across the electrode gap
Cures: 1. A 6000 volt transformer is usually recommended. 2. Only one spark electrode at a time can be operated by a single pole transformer 3. There must be a metallic ground connection between transformer case and pilot tip. 4. Remove ignition lead from electrode. Check spark from ignition lead to ground. Spark should jump at least 1/8". 5. If #4 shows good spark, reset gap to about 3/32", clean or replace spark plug, or remove foreign matter from pilot tip.
B. Cause: No spark at electrode
Cures: 1. Remove ignition lead from transformer and check for spark from secondary terminal of transformer to ground. 2. If this spark is okay, install new ignition lead.
C. Cause: No spark at transformer
Cures: 1. Check for power to primary of transformer. 2. If voltage is okay, install new transformer. 3. If no power, correct power supply.
TROUBLE SHOOTING PILOTS - SPARK OR MANUAL IGNITION
Symptom: Pilot will not light D. Cause: Piping
Cures: 1. Be sure piping between mixer and tip is full or oversize depending on length and number of fittings. 2. Be sure piping from regulator is unrestricted and has no leaks. 3. Be sure system has proper gas supply regulators. 4. Be sure regulator vent is cross-connected to the pilot air line. 5. Be sure mixer and tip are properly matched. 6. Be sure directional arrows on pilot tip point to main burner.
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